Every sport, explained.

Test, one-day and T20 cricket: how the skills work, what the numbers measure, and how the competitions came to be the way they are.

• GuideWomen's Premier League cricket: format, auction, rules18 minA guide to Women's Premier League cricket: the five franchises, the auction and retention system, the purse arithmetic, overseas limits and the January window.
• ExplainerTurning pitch cricket explained: why the ball grips18 minWhat makes a cricket pitch turn: the friction a spinner needs, why grip arrives on the third day, how footmarks form, and how batters and captains read a turner.
• TacticsSwitch hit rules in cricket: why the shot stays legal18 minWhat the Laws say about the switch hit and the reverse sweep, why changing handedness is allowed, how it affects lbw and wides, and the case for restricting it.
• ExplainerSuper over rules in cricket: how a tied match is decided18 minHow a super over works under ICC playing conditions: what triggers one, the two-wicket limit, field settings, repeat overs, and the scrapped boundary countback.
• TacticsSpin in the T20 powerplay: why sides open with a spinner17 minWhy T20 teams open the bowling with spin: what a hard new ball gives a spinner, the matchup logic, the risk of two fielders out, and how batters hit back.
• ExplainerThe second new ball rule in cricket, and when to take it16 minThe second new ball rule in cricket explained: when eighty overs makes one available, what it does to the ball, and the reasons a captain delays taking it.
• GuideSA20 format explained: how South Africa's T20 league works18 minHow the SA20 is built: the shareholding behind it, six teams owned by IPL groups, the auction, squad quotas, the playoff ladder and the season it displaced.
• ExplainerRun out third umpire explained: how the call is made18 minWhat the third umpire actually looks for in a run out or stumping: the bail moment, the grounded bat, frame gaps, split screens and the benefit of the doubt.
• GuideRanji Trophy format explained: groups, points, knockouts18 minHow the Ranji Trophy is structured: thirty-eight teams across Elite and Plate divisions, a split league season, the points and bonus system, and the knockout ladder.
• TacticsPowerplay batting in T20: intent, matchups and risk18 minHow T20 sides bat the first six overs: setting intent, attacking the new ball, arranging matchups, budgeting risk and recovering from an early wicket.
• ExplainerPink ball Test explained: what changes under lights17 minHow a pink ball Test works: why the colour was changed, what the extra finish does to the ball, why the twilight hour hurts batters, and how the day is divided.
• GuidePakistan Super League format: eight teams, two pools21 minThe Pakistan Super League format after expansion: two pools of four, ten league games each, the four-match playoff, the new auction and who pays for a franchise.
• ExplainerOver rate penalties in cricket: fines, points and fielders17 minHow slow over rate sanctions work: the minimum rate, time allowances, the eighty over let-off, World Test Championship points, match fee fines and the stop clock.
• TacticsThe opening partnership in cricket: what openers are for17 minWhy the first pair bats first: the new ball problem, the leave, left and right combinations, powerplay maths and how the opener's job changes between the three formats.
• ExplainerNet run rate calculation in cricket, with worked examples19 minThe net run rate formula, the all-out rule that uses the full allocation, how balls convert to overs, what rain does to the sum, and four constructed examples.
• AnalysisModern cricket fielding: how the standards were rebuilt18 minHow modern cricket fielding changed: the specialist boundary rider, catching technique, the amended relay catch Law, measuring runs saved and selection.
• GuideMajor League Cricket USA explained: how the league works18 minHow Major League Cricket is built: single-entity ownership, six teams, borrowed stadiums and drop-in pitches, squad quotas, the June window and its ICC standing.
• TacticsLeft-arm fast bowling angle: the geometry explained18 minWhat the left-arm fast bowling angle actually does to a right-handed batter: release offsets, slant in degrees, the lbw problem, crease use and field consequences.
• EconomicsIPL retention rules explained: slabs, RTM and the purse18 minHow IPL retention works: six slots per franchise, five capped and two uncapped, the fixed slab charges, the right to match card, and why each figure is set per cycle.
• ExplainerICC pitch rating system explained: ratings and demerits18 minHow the ICC pitch rating system works: who marks a surface, the four categories, what earns demerit points, the appeal, and when a venue loses the right to host.
• ExplainerHow ICC Elite Panel umpires are chosen and assessed18 minWhat the ICC Elite Panel of umpires is, why it was created in 2002, how officials are promoted onto it, and how their performance is judged over a career.
• TacticsHow to bowl a yorker: technique, target and practice19 minA mechanical guide to how to bowl a yorker: the landing zone, release height and timing, grip, run-up, the four types, the fault list and drills that hold up.
• ExplainerHow Hawk-Eye works in cricket, from cameras to margins18 minThe engineering behind cricket ball tracking: camera placement, frame rates, triangulation, trajectory fitting, the predicted path and why the system reports uncertainty.
• ExplainerFollow on rule cricket: the 200-run margin explained18 minWhat Law 14 says about the follow-on, how the margin changes with match length, the four sides that won after following on, and why captains now decline it.
• AnalysisFast bowler workload management: the injury arithmetic18 minHow fast bowling loads are counted and controlled: why the lumbar spine fails, what the acute to chronic ratio does and does not show, and how rotation is decided.
• TacticsDew factor cricket explained: why chasing gets easier18 minThe dew factor in cricket explained: the physics of dew, what it does to grip and the ball, how it bends the toss, the countermeasures grounds use and the scheduling row.
• TacticsDeclaration cricket explained: the captain's timing call18 minWhy a Test captain stops his own side batting, what Law 15 permits, how the overs arithmetic works, and how to judge a declaration while it is happening.
• TacticsDeath overs field setting: how the last four are built21 minHow a death overs field is set: the five-out limit, catchers against savers, where riders really stand, matchup placement and covering a short square boundary.
• ExplainerCricket World Cup qualifiers explained: the full pathway18 minHow teams reach the Cricket World Cup: ranking places, League 2, the Challenge League, the play-off and the final Qualifier, and how the tiers connect.
• EconomicsCricket TV rights explained: how the money is sold18 minHow cricket TV rights work: cycle length, territory splits, digital against linear packages, the tender and auction process, sub-licensing, and revenue concentration.
• GuideCricket tour preparation: how a touring side gets ready18 minWhat a touring cricket team does before a series: reconnaissance, warm-up fixtures, acclimatisation, net bowlers, ball and pitch work, and why away records differ.
• ExplainerThe cricket selection process: how a squad is chosen18 minHow the cricket selection process works: who sits on a national panel, who appoints them, what the captain and coach decide, and why the arguments never end.
• ExplainerCricket scoring explained: how a scorebook is kept18 minHow cricket scoring works in practice: the scorer's duties under the Laws, the symbol for every delivery, where extras are written, and how two scorers agree.
• GuideCricket pathway explained: age group to international18 minHow a cricketer gets from age group teams to a national debut, how England, Australia and India build their systems differently, and where the pathway loses players.
• TacticsCricket innings break strategy: how a chase is planned18 minWhat happens in the interval between innings: how long the break lasts, how a chasing side reads the pitch, splits a target into phases and plans for dew.
• HistoryCricket in America: history of a sport that lost out18 minHow cricket became the leading American team game, why Philadelphia was its capital, how baseball displaced it, and what brought the sport back after a century.
• HistoryCricket helmet safety history: from cap to neck guard18 minHow cricket went from bare heads to a tested British Standard, why the change took a century, and what the 2013 and 2019 rules on helmets actually require.
• GuideCricket ground preparation: everything beyond the pitch18 minHow a cricket ground is prepared: outfield construction, drainage, covers and mop-up, boundary ropes, sightscreens, floodlights and the groundstaff year.
• ExplainerCricket fixture calendar explained: how the year is built18 minHow the cricket calendar is assembled: the Future Tours Programme, ICC event windows, the seasons that fix the dates, and why the fixture list keeps growing.
• AnalysisCricket fitness testing: what the yo-yo test measures18 minHow cricket fitness testing works: the yo-yo and bronco runs, the two-kilometre trial, skinfolds and gym benchmarks, why boards set pass marks, and where scores mislead.
• ExplainerCricket anti-corruption unit: how the ICC ACU works18 minWhat the ICC Anti-Corruption Unit does, the offences in the Anti-Corruption Code, the duty to report an approach, provisional suspensions, and where the risk sits.
• ExplainerConcussion substitute cricket rules: how replacements work17 minWhat the concussion substitute rules allow: the off-field assessment, the like-for-like test a match referee applies, the five nominated players and the stand-down.
• GuideChampions Trophy format explained: eight teams, no slack17 minThe Champions Trophy format explained: how the eight places are earned, why fifteen matches is the whole design, and what changed when the ICC revived it.
• EconomicsCentral contracts in cricket explained: what a board buys18 minHow central contracts work in cricket: what a retainer actually purchases, how bands and match fees stack, why no-objection certificates matter, and who loses players.
• GuideCaribbean Premier League format: how the CPL season works18 minThe CPL explained: the seven-franchise regional map, the nine-five-three squad rule, the draft and right to match, the island-hopping schedule and the playoff ladder.
• TacticsBowling plans in cricket: how bowlers set a batter up18 minHow a bowling plan is built for a specific batter: the dismissal shape, the field that enforces it, when to abandon it, and what the analyst adds.
• AnalysisBoundary size cricket rules: ICC minimum and maximum18 minWhat the ICC playing conditions say about boundary size: the 65 and 90 yard limits, the three-yard rope rule, heritage exemptions, and why two grounds never match.
• GuideBig Bash League format explained: season and finals21 minThe Big Bash League format: eight clubs, an uneven ten-game fixture list, a four-match finals series, the overseas draft and who actually owns the teams.
• TacticsBatting order in cricket explained, position by position19 minThe batting order in cricket explained: what the Laws allow, the job at each of the eleven positions, and how Test, ODI and T20 orders are built differently.
• ExplainerBad light cricket rules: how umpires decide to stop play19 minWhat the bad light law actually says, how the umpires' meter sets a benchmark, why batters lost the choice in 2010, and what floodlights cannot fix in Tests.
• AnalysisAssociate nations cricket explained: money and status18 minWhat ICC associate membership means in practice: how the money is split, which statuses are rented rather than owned, where players come from, and the expansion row.
• GuideAsia Cup format explained: groups, Super Four and hosts17 minThe Asia Cup format explained edition by edition: who decides whether it is fifty overs or twenty, how the Super Four works, and how the last seat is won.
• ExplainerThe bouncer rule in cricket explained, format by format21 minHow many bouncers per over in Tests, ODIs and T20Is, where the shoulder and head height lines sit, and the warning ladder that ends a bowler's day.
• ExplainerWorld Test Championship points system: the arithmetic19 minPoints per Test, why the table divides by points available, exactly where the over-rate deduction lands, and worked sums for projecting the standings.
• EconomicsWomen's cricket pay equality: the gap is not match fees18 minMatch fee parity is not income parity. Where women's cricket pay equality really sits, why domestic and franchise earnings decide it, and what changes next.
• ExplainerThe Hundred cricket rules explained, and why the over went19 minHow The Hundred works: 100 balls, sets of five, ten-ball spells, a 25-ball powerplay, and what happens to cricket's statistics once the over stops existing.
• TacticsT20 fielding restrictions explained: one innings, two games20 minHow T20 fielding restrictions split a twenty-over innings in two: the six-over powerplay, what changes in over seven, and the specialists each phase creates.
• GuideThe Sheffield Shield explained: six states, one purpose19 minHow the Sheffield Shield works: six states, ten rounds, bonus points, a five-day final, and a competition run openly to manufacture Test cricketers.
• ExplainerNightwatchman in cricket explained, and whether it works19 minWhy a captain sends a tail-ender in at 6pm to protect a specialist, the arithmetic behind the call, the cost nobody counts, and how to judge it live.
• ExplainerThe IPL impact player rule explained, and what it costs20 minHow the IPL impact player rule works: two team sheets, five substitutes, the fourteenth-over deadline, the overseas limit, and why all-rounders got cheaper.
• ExplainerICC rankings explained: three systems, not one table21 minHow the ICC rankings really work: why the team rating is an average not a league table, how opponent strength is weighted, and what a player rating measures.
• TacticsHow to pace a run chase in cricket: the two resources22 minA chase is a resource problem with a known answer. How wickets and balls trade off, why the required rate misleads, and what a well-paced chase looks like.
• ExplainerHow is a cricket ball made? Cork, leather and six rows17 minHow a cricket ball is made, from the wound cork core to the four leather quarters and the six rows of stitching, and why Dukes, SG and Kookaburra differ.
• ExplainerDRS in cricket explained, from ball tracking to umpire's call19 minHow the Decision Review System works: player and umpire reviews, ball tracking, edge detection, umpire's call, and the lbw tests a review runs through.
• ExplainerHow are cricket pitches prepared: a groundsman's week19 minRolling, mowing and covering are all one job, moving water through a soil profile. How groundstaff build a Test, ODI or T20 surface, and what wrecks the plan.
• ExplainerHow are cricket bats made? Willow, pressing and shape20 minHow are cricket bats made, from a willow cleft to a finished blade: the drying, the grading, the pressing that makes the face a spring, and the Law 5 limits.
• AnalysisDoes the toss matter in cricket? It depends on the day17 minWhat the toss actually decides, the two things a captain trades, why the answer changes by format, how dew distorts it, and whether it should be scrapped.
• TacticsDeath bowling in T20 cricket explained: the last four overs22 minWhy death bowling in T20 is a separate skill: the batter's inverted incentive, the yorker's margin for error, the field, matchups and what a specialist has.
• ExplainerCricket umpire signals and what the scorers write down18 minEvery cricket umpire signal, what it tells the scorers, why some are acknowledged and others are not, and why the order of two signals changes the score.
• TacticsCricket captaincy explained: the last job with real power20 minHow cricket captaincy works: fields, bowling changes, the declaration, the follow-on, reviews, over rates, the coach relationship and captaincy by format.
• GuideCounty Championship explained: the Test player factory20 minHow the County Championship works: two divisions, first-innings bonus points, over-rate deductions, the April and September squeeze, and the money behind it.
• AnalysisAll-rounder value in cricket is a squad-balance question19 minBatting average minus bowling average is the standard all-rounder test. What the subtraction claims, what it hides, and why the real case is the extra specialist.
• ExplainerWorld Test Championship explained: points, final and flaws21 minHow the World Test Championship works: why the table is a percentage not a points total, what each result is worth, the over-rate penalty and the final.
• AnalysisHow women's cricket went professional, and what changed19 minHow women's cricket professionalised: what a contract actually buys, why the domestic tier is the engine, the franchise money, and the gaps still left.
• ExplainerTypes of spin bowling explained: finger spin and wrist spin21 minFinger spin and wrist spin explained delivery by delivery: off break, arm ball, leg break, googly, slider, flipper, carrom ball and the contentious doosra.
• GuideThe art of wicketkeeping: standing up and standing back21 minHow wicketkeeping actually works: the depth, the soft take, the leg-side dive, the stumping sequence, and why standing up to spin is a different sport.
• ExplainerTest, ODI and T20 cricket: every difference explained18 minThe rules, tactics and economics separating Test, ODI and T20 cricket, and the one variable underneath all of them: how scarce balls and wickets are.
• GuideT20 franchise leagues around the world, and who gets the weeks19 minThe global T20 franchise circuit explained: how each league claims a window, who owns the teams, how a player builds a year, and what it costs Test cricket
• ExplainerPowerplay rules across formats: ODI and T20 restrictions19 minHow powerplay rules work in ODIs, T20s and The Hundred: the circles, the fielders in and out, the phase transitions, and the tactics each one forces.
• GuideHow to read a cricket scorecard: every column explained19 minA column-by-column guide to the cricket scorecard: dismissal shorthand, the not-out asterisk, bowling figures, extras, fall of wickets and totals.
• ExplainerHow the IPL auction works: rules, purse and retentions18 minA plain guide to the IPL auction: the purse, retentions, right to match, capped and uncapped players, accelerated rounds and the overseas limit.
• ExplainerHow reverse swing works: the physics of the old ball18 minReverse swing explained properly: why an old ball moves the other way, what the shine and the rough side are really doing, and where the laws draw the line.
• AnalysisHow cricket teams use data: analytics behind the game22 minHow cricket analysts actually work: where ball-by-ball data comes from, why matchups mislead, how pitch maps set fields, and what the numbers cannot see.
• HistoryThe history of the Ashes, from mock obituary to modern urn22 minHow a satirical death notice in 1882 created cricket's oldest rivalry, why the urn never leaves Lord's, and how home conditions decide most Ashes series.
• ExplainerDuckworth-Lewis-Stern explained: how rain rules work19 minHow Duckworth-Lewis-Stern works: what a resource percentage means, why the table bends in two directions, how a revised target is set, and what it gets wrong.
• HistoryCricket World Cup history and how the format changed22 minHow the one-day World Cup was built and rebuilt: sixty overs in 1975, the move to fifty, the Super Six, the ten-team round robin and what comes next.
• GuideCricket statistics glossary: every key term explained21 minWhat every cricket statistic actually measures: batting average, strike rate, economy, control percentage, net run rate, and exactly where each one misleads.
• ExplainerCricket pitch types explained: green tops to dust bowls18 minWhat a cricket pitch is made of, how clay and moisture set pace and bounce, why a surface changes across five days, and how to read one before the toss.
• ExplainerCricket laws every fan should know, and why they exist18 minThe ten ways to be out, lbw in full, no balls, wides, dead ball and the spirit preamble, with the specific unfairness each cricket law was written to answer.
• GuideCricket fielding positions explained, from slip to fine leg18 minCricket fielding positions explained as a coordinate system: off and leg, fine and square, silly to deep, and how to read a captain's plan from the field.
• ExplainerBowling economy, average and strike rate, properly explained18 minHow bowling economy, average and strike rate relate, why average equals economy times strike rate over six, and which figure matters in which format.
• ExplainerBatting average vs strike rate: what each one measures19 minBatting average and strike rate divide by different things. Why not-outs inflate an average, why Tests weight one and T20 the other, and what both hide.

Association football from the Premier League down: tactics, transfer economics, competition formats and the data behind them.

• ExplainerYellow and red card rules in football, fully explained20 minThe cautionable and sending-off offence lists, what DOGSO means, the triple punishment reform, second yellows, suspensions, and how VAR now reviews cards.
• ExplainerWork permit rules in football: the GBE points system19 minHow English football work permits actually work: the auto pass, the fifteen point threshold, the six scoring criteria, the Exceptions Panel and the ESC route.
• GuideSerie A structure explained: stadiums, ladder, finance18 minHow Serie A works: the 38-round season, why clubs do not own their grounds, the Serie B playoff, points deductions and the Italian licensing rules.
• GuideSaudi Pro League explained: format, money and quotas17 minThe Saudi Pro League as a competition: eighteen clubs, the sovereign fund ownership of the big four, the foreign player quota, the spending record and the objections.
• AnalysisProgressive passes explained: what each provider counts18 minThree data providers count progressive passes three different ways. What each threshold means, what the filter throws away, and how the number gets inflated.
• TacticsPressing triggers in football: the five cues that start it18 minThe specific moments that launch a co-ordinated press, what each one gives away behind the ball, and how rest defence decides which triggers a side can afford.
• ExplainerPenalty shootout rules explained: Law 10 step by step18 minThe full procedure for a penalty shoot-out under IFAB Law 10, from the two coin tosses to sudden death, plus encroachment, double touches and competition variations.
• AnalysisPacking metric football: counting the opponents you bypass18 minPacking counts how many opponents an action takes out of the game. What qualifies as bypassed, why weightings differ, and the four ways the number misleads.
• GuideNations League explained: format, leagues and play-offs17 minHow the UEFA Nations League works: the four leagues, the group phase, promotion and relegation, the quarter-finals and what the trophy is actually worth.
• EconomicsMulti-club ownership in football and the UEFA rules19 minHow UEFA Article 5 restricts two clubs from one ownership group entering the same competition, the remedies groups use, the player-trading logic and the objections.
• GuideMLS salary cap explained: budget charges and DP rules18 minHow MLS roster rules really work: the salary budget charge, Designated Players, allocation money, the U22 Initiative, homegrown slots and why the cap is soft.
• GuideMLS format explained: conferences, playoffs and the Shield18 minHow Major League Soccer is structured: thirty clubs in two conferences, an unbalanced 34-game schedule, a best-of-three playoff round and the 2027 calendar switch.
• GuideLa Liga structure explained: format, money and the ladder18 minHow La Liga actually works: the 38-round season, the squad cost limit, the centralised television sale, the Segunda playoff and the head-to-head rule.
• AnalysisHow football scouting works, from data screen to signing18 minHow football scouting works inside a modern club: the data screen, live viewings, the scout report, video work, recruitment analysts, and why signings fail.
• ExplainerHomegrown player rules in football: the squad arithmetic18 minThe Premier League and UEFA define a homegrown player differently. Here is each test, the club-trained split, and how the two quotas shrink a squad list.
• TacticsThe high line offside trap explained: risk and reward18 minHow a high defensive line and an offside trap work, what triggers the step, which passes beat them, and what a side gives up to compress the pitch.
• AnalysisSweeper keeper role explained: defending the space behind18 minHow a sweeper keeper covers the ground behind a defensive line, what the decision outside the box actually involves, and why it is a separate selection call.
• AnalysisGoalkeeper distribution analysis: reading a keeper's feet18 minWhat goalkeeper distribution analysis measures, why pass completion misleads, how launch rate and pressure interact, and how clubs test a keeper's passing in recruitment.
• ExplainerGoal line technology explained: the one second verdict18 minWhat goal-line technology is allowed to decide, how camera and magnetic systems reach an answer inside a second, and why it is nothing like a video review.
• EconomicsFootball wage structure explained: how club pay is built19 minBasic pay, appearance money, bonus schedules, signing-on fees, loyalty payments, image rights and relegation clauses, and how a squad wage bill meets cost-control rules.
• AnalysisFootball tracking data explained: how the pipeline works18 minHow football tracking data is captured by camera arrays and wearable pods, joined to event data, converted into physical metrics, and reused for offside calls.
• ExplainerFootball substitution rules: five subs, three windows18 minHow many substitutes a team may use, why the three-opportunity limit matters more than the number, the concussion protocol, and what changed for 2026/27.
• EconomicsFootball stadium naming rights: why some grounds sell18 minWho owns a stadium name, how the deals are structured, why a brand new ground sells its name easily and an old one with a famous name almost never does.
• EconomicsFootball sponsorship shirt deals: how they are built18 minA plain guide to how football shirt sponsorship contracts are structured, why the sleeve and training kit are sold separately, and what the announced number leaves out.
• AnalysisFootball set piece xG: why restarts need their own model18 minWhy set piece xG models are trained apart from open play, what a corner is worth in expected value, how second-phase shots are attributed, and how to read the numbers.
• AnalysisFootball set piece routines: how each one is designed18 minHow corner, free kick and throw-in routines are engineered: target zones, delivery types, legal blocking, near and back post patterns, short corners and second balls.
• EconomicsFootball relegation cost explained: the drop and the bill18 minWhat relegation really costs a club: parachute payments, wage clauses, cost-control limits, forced sales and the amortisation that carries on regardless.
• ExplainerFootball referee signals explained, from flag to card18 minWhat every arm, flag and card signal means in football, including advantage, direct and indirect free kicks, the offside flag heights and the VAR review rectangle.
• AnalysisFootball possession statistics explained: what 62% means18 minPossession is calculated three different ways and the methods disagree. What pass share, stopwatch time and sequence counting each measure, and how each is gamed.
• ExplainerFootball pitch dimensions and the rules that set them18 minWhat the Laws of the Game permit, what UEFA and domestic competitions demand, every fixed marking on the field, the surface rules, and how pitch size shapes play.
• EconomicsFootball matchday revenue explained: where the money comes from18 minA breakdown of football matchday revenue: season tickets, walk-up sales, hospitality, memberships and cup gate splits, and why the biggest clubs need it least.
• ExplainerFootball loan rules explained: FIFA limits and clauses18 minHow football loans work under FIFA rules: the cap on international loans, buy options against buy obligations, wage splits, recall clauses and the parent club bar.
• ExplainerFootball injury time stoppages: where the minutes go18 minWhich events actually take play out of a football match, why the ball is in play for well under an hour, how sides waste time and what the countermeasures changed.
• EconomicsFootball club ownership models: who really owns a club18 minThe six ownership forms in European football, what each one lets an owner do, how money legally enters a club, and the tests a new buyer now has to pass.
• EconomicsFootball agent fees explained: who pays and how much18 minWho actually pays a football agent, how the FIFA cap was written and then suspended, what the 2026 Court of Justice ruling changed, and where the fee lands.
• EconomicsFootball academy economics: what a youth system costs18 minHow football academies are funded and graded, what a club is paid when a young player leaves, and why a homegrown sale lands in the books as almost pure profit.
• GuideFA Cup format explained: rounds, entry and the draw17 minHow the FA Cup works from the extra preliminary round to Wembley: who enters at which round, how the draw is made, why replays went, and what each round pays.
• ExplainerExtra time football rules: what happens after 90 minutes17 minThe thirty minutes explained: Law 7 and Law 10, the five-minute break, the extra substitute, and why the golden goal and silver goal were both scrapped.
• GuideEuros format explained: qualifying, groups and play-offs18 minHow the European Championship is built: twelve qualifying groups, the Nations League play-off route, the 24-team finals and the third-placed maths nobody follows.
• GuideEuropa League format explained: the new 36-team season18 minHow the Europa League format works: eight league phase fixtures, four seeding pots, one table of 36, the play-off round, the access list and the qualifying paths.
• TacticsCounter-attacking football explained: space and timing18 minHow counter-attacking football works: the seconds after a turnover, where the first pass goes, who runs, and what deliberately conceding territory costs a side.
• GuideConference League explained: entry, format and purpose18 minWho the UEFA Conference League was built for, how its 36 league phase places are filled by the access list, and how the table, play-offs and prize work.
• GuideClub World Cup format explained: 32 teams, one summer18 minHow the expanded Club World Cup works: the 32-team draw, confederation slots, both qualification pathways, the prize money pillars and the calendar objections.
• GuideCarabao Cup format explained: byes, rounds and seeding17 minWhy nine clubs skip two rounds, where the preliminary round came from, how the seeded third round dodges European weeks, and when extra time is actually played.
• ExplainerCaptain armband role in football: what the law says17 minThe captain's armband carries one legal duty, two coin-toss choices and a growing referee protocol. Here is what the Laws grant a captain and what they refuse.
• GuideBundesliga 50+1 rule explained: German club ownership18 minWhat the Bundesliga 50+1 rule actually says, how the licence enforces it, why Leverkusen and Wolfsburg are exempt, and how it survived the competition ruling.
• ExplainerAway goals rule abolished: which competitions dropped it17 minUEFA scrapped away goals in 2021, but not everyone followed. Which competitions dropped the rule, when they did it, and how level ties are settled now.
• ExplainerAdded time calculation football: how referees work it out18 minHow the fourth official's number is built, what Law 7 says must be added, why the board shows a minimum rather than a total, and what changed for 2026/27.
• Tactics4-2-3-1 formation explained: the double pivot's job18 minWhat makes the 4-2-3-1 work: why two holding midfielders change the shape, where the number ten stands, and the trade-offs the structure forces on a squad.
• Tactics3-4-3 formation explained: wing-backs, gaps and cover18 minHow the 3-4-3 works in possession and out of it, why the wing-backs carry the shape, where the two central midfielders get exposed and how sides break it.
• ExplainerWorld Cup qualifying explained: six contests, one name18 minHow World Cup qualifying actually works, confederation by confederation: slot allocation, the European groups, the South American league and the play-offs.
• GuideWomen's Super League explained: licences, tiers and money20 minHow the Women's Super League works: the two professional tiers, why a licence and not just the table decides who goes up, and what club ownership changed.
• AnalysisExpected goals explained: what xG actually measures20 minExpected goals explained without the folklore: what an xG number really is, why providers disagree, what it cannot do, and how to read a match graphic.
• ExplainerThe offside rule explained: position, involvement, sanction21 minLaw 11 in full: why an offside position is not an offence, what involvement means, which body parts are measured, and where the deliberate-play line falls.
• TacticsSet piece coaching in football: the one rehearsed moment22 minWhy set piece coaching in football exists: marking systems, blocking, delivery types, the second phase, short corners, long throws and how clubs value it.
• EconomicsHow Premier League TV money distribution actually works22 minThe 50:25:25 domestic split, the overseas merit change, the 1.8:1 cap, parachute payments and why the Premier League's central pot is unusually flat.
• AnalysisPPDA explained: what passes per defensive action shows21 minWhat PPDA really measures: the formula, the pitch zone, why a lower number means more pressing, and the five ways the metric misleads people who quote it.
• TacticsOverload football tactics: manufacturing a spare man21 minHow an overload actually changes a defender's job, why sides load one flank to attack the other, the third-man run, and how to spot one being built.
• TacticsMan marking vs zonal marking: why zonal takes the blame20 minHow man marking and zonal marking differ in open play and at set pieces, the hybrid almost every team uses, and why zonal is blamed for goals it did not cause
• TacticsLow block football explained: trading territory for space22 minHow a low block actually works: the shape and the distances, why compactness beats block height, the pocket and the cutback, and the counter exit.
• TacticsInverted full-back explained: what it actually solves21 minThe inverted full-back explained: the midfield overload, the passing angles, the rest defence nobody mentions, and how opponents attack the space behind.
• ExplainerHow VAR works in football, and what it cannot review20 minThe video assistant referee explained properly: the four reviewable categories, what clear and obvious really means, and how semi-automated offside works.
• EconomicsUEFA Financial Fair Play explained: the rules that replaced it22 minHow UEFA's financial rules actually work: the old break-even test, the three pillars that replaced it, the squad cost ratio, and how sanctions are set.
• EconomicsHow does the transfer window work? The rules, not the rumours21 minThe transfer window as a legal object: registration periods, what a fee actually buys, Bosman, loans, add-ons, deadline paperwork and who pays the agent.
• ExplainerChampions League new format explained: one table, 36 clubs21 minHow the Champions League league phase works: the pots, the computerised draw, the tiebreakers, the three bands of the table and the play-off round that follows.
• ExplainerHow promotion and relegation works, and what it costs21 minHow promotion and relegation works: the pyramid, the tiebreakers, the play-offs, ground grading, and why the drop costs a club far more than a place.
• EconomicsPremier League PSR explained: the rule, and the workarounds20 minHow Premier League PSR really works: the rolling three-year test, the costs excluded from it, the equity condition, and what a points deduction follows from.
• TacticsGegenpressing explained: the bet on the next five seconds21 minHow gegenpressing actually works: why the seconds after a turnover are worth so much, the distances and rest defence it needs, and how good teams break it.
• ExplainerThe football handball rule explained: every test in Law 1222 minWhat handball actually means in law: the deliberate act, the unnaturally bigger body, the armpit line, accidental goals, deflections and the goalkeeper's own offences.
• TacticsFalse nine explained: the question a centre-back cannot answer22 minHow the false nine actually works: the choice it forces on a centre-back, why both answers open something up, and what the role needs around it to pay.
• GuideEFL Championship explained: football's most dangerous league22 minThe EFL Championship explained: the 46-game season, the new six-club play-off, parachute payments, squad cost rules, and why clubs overspend to escape.
• TacticsBuild-up play from the back: why the risk is the point22 minPlaying out from the back explained properly: the spare man, the shapes that create one, the third-man escape, and how to judge whether a side does it well.
• EconomicsAmortisation in football transfers explained, from fee to sale22 minA transfer fee is not an expense, it is the purchase of an asset. How amortisation works in football, from capitalised cost to profit on disposal.

The NFL and the college game: scheme, the salary cap, the draft, and the analytics that changed how coaches call fourth down.

• TacticsZone blocking scheme explained: block an area, not a man22 minHow inside and outside zone actually work: the combination block, the climb to the second level, the back's one cut, and how defences beat it.
• TacticsWhat is Cover 2 defense? Two deep halves, five underneath20 minCover 2 defense built from the geometry up: two deep safeties, five underneath defenders, the Tampa 2 carry, and every hole the arithmetic leaves open.
• TacticsWest Coast offense explained: the pass as a running play21 minHow the West Coast offense turned the short pass into a ball-control weapon: timing, quarterback footwork, horizontal stretch, and what survives of it today.
• TacticsThe two-minute drill explained, and what it actually spends19 minHow the two-minute drill works: the clock rules that make it possible, when a spike is wrong, why timeouts are not for stopping the clock, and the counter.
• GuideSuper Bowl format explained, from seeding to the coin toss19 minHow the Super Bowl format works: fourteen clubs, thirteen games, a host city voted on years early, and the handful of rules that change for the final.
• TacticsScreen pass explained: how football punishes a pass rush21 minThe screen pass explained from the rulebook out: the one-yard line that makes it legal, the deliberate loss up front, and the three ways it goes wrong.
• TacticsRun pass option explained: making one defender wrong22 minHow an RPO actually works: choosing the read defender, pre-snap and post-snap reads, the one-yard downfield rule that binds it, and the defensive answers.
• TacticsPlay action pass explained: why the fake still works20 minHow a play action pass attacks a defender's assignment rather than his speed, the routes built behind it, and the disputed evidence that it needs no run game.
• EconomicsNIL deals college sports explained, cap to clearinghouse22 minNIL deals in college sports explained: the three pots of money, the House settlement cap, the 600-dollar review threshold, and what is still unsettled.
• TacticsNickel and dime defense: why the sub package is now base21 minNickel and dime defense from the substitution rule up: what the fifth and sixth defensive back buy, what they cost in the run fit, and how to spot them.
• ExplainerNFL waiver wire explained: who gets claimed and who walks21 minThe NFL waiver wire explained properly: who is subject to waivers, how the claiming order works and the week it flips, and what a club inherits with a claim.
• ExplainerNFL two-point conversion rules, and when to go for two21 minThe NFL two-point conversion rules explained: the 2-yard line, the 33-yard kick, defensive returns, the one-point safety, and the maths of going for two.
• ExplainerNFL trade deadline rules, and why so little actually happens21 minThe NFL trade deadline rules in full: the Tuesday it falls on, what a trade does to the salary cap, why sellers pay to sell, and what changes the next day.
• ExplainerNFL salary cap carryover: the money that does not expire18 minHow NFL salary cap carryover works: the owner's signature, the deadline the day after your last game, the incentive settlement, and why the cash floor bites.
• ExplainerThe NFL roughing the passer rule, and the one-step clock19 minThe NFL roughing the passer rule set out in full: the one-step clock, the body weight clause, the low hit, what a passer loses outside the pocket, and replay.
• EconomicsThe NFL rookie wage scale explained: a fixed price list19 minHow the NFL rookie wage scale works: the two pools, the 25 per cent rule, four-year proration, the fifth-year option tiers and the terms banned outright.
• EconomicsNFL revenue sharing explained: the deal that made the league21 minHow NFL revenue sharing works: which money is pooled, which stays local, how the players' agreement defines revenue, and why the split built the league.
• GuideNFL Pro Bowl explained: the honour that outlived the game19 minWhat the NFL Pro Bowl is now the game has gone: how players are voted in, what the flag football era changed, and what a selection is actually worth.
• AnalysisNFL pressure rate explained: why sacks are the wrong stat20 minHow NFL pressure rate is defined, counted and misread: the tracking models behind it, the three denominators in circulation, and what it actually predicts.
• GuideNFL preseason explained: what those three games are for22 minThe NFL preseason explained: three games, a 90-man camp, one cutdown to 53, joint practices, and what coaching staffs are actually watching for.
• ExplainerNFL practice squad rules, and the sixteen men behind the 5322 minHow NFL practice squad rules work: who qualifies, the sixteen and seventeen-man limits, weekly elevations, what the job pays and who can sign him away.
• AnalysisNFL passer rating explained: what the formula cannot see19 minThe NFL passer rating explained from the constants up: four capped components, where 158.3 comes from, what the formula ignores, and how to read it honestly.
• ExplainerThe NFL pass interference rule: the penalty with no number21 minHow the NFL pass interference rule works: the acts that count, the uncatchable ball, the spot foul argument, and why one flag can move the ball fifty yards.
• ExplainerNFL overtime rules explained, and why the toss still matters21 minHow NFL overtime rules work now: the coin toss, the ten-minute period, the guaranteed possession, ties, playoff overtime, and whether to kick or receive.
• ExplainerNFL kickoff rule changes, and what each one was fixing22 minHow the NFL kickoff rule changes work: the dynamic kickoff alignment, the landing zone, every touchback spot, onside kicks and the safety trade-off.
• ExplainerNFL injured reserve rules: who can return, and how many22 minHow NFL injured reserve rules work: the four-game minimum, the eight return slots, the cut-down trap, PUP and NFI, and what a season on IR costs.
• ExplainerThe NFL holding penalty explained: it is not about hands21 minHow the NFL holding penalty works: the material restriction test, the nine situations where holding is never called, and where the ten yards come from.
• EconomicsNFL guaranteed money explained: what is actually locked in22 minHow NFL guaranteed money works: the three protections, vesting dates, the escrow funding rule, offset language, and why the headline figure is not cash.
• EconomicsThe NFL franchise tag explained: a price, not a contract19 minHow the NFL franchise tag is priced, why the non-exclusive version is exclusive in practice, what the July deadline does, and how a tag hits the cap.
• AnalysisNFL fourth down analytics: why coaches punted anyway17 minHow expected points, win probability and break-even conversion rates value a fourth down, why coaches ignored the answer for two decades, and where it breaks.
• AnalysisThe NFL draft value chart explained, and where it lies19 minThe NFL draft value chart explained: where the Jimmy Johnson points came from, what the newer charts measure instead, and why price and value diverge.
• EconomicsNFL contract restructure explained: what it really costs19 minAn NFL contract restructure explained from the agreement itself: how a conversion works, what void years cost, and when the bill actually lands.
• GuideThe NFL combine explained: what actually gets measured18 minThe NFL combine explained in full: who runs it, how invites are decided, what the medicals settle, how the 40 is timed, and why interviews matter most.
• ExplainerNFL challenge and replay rules: what New York can fix22 minNFL challenge and replay rules from the rulebook: the two challenges, how a third is earned, what the booth reviews alone, and what replay assist may fix.
• ExplainerThe NFL catch rule explained: what a catch now requires21 minThe NFL catch rule explained from the current rulebook: the three things a receiver must do, what the 2018 rewrite deleted, and where arguments still live.
• TacticsMan coverage vs zone coverage: the trade every snap makes21 minMan coverage vs zone coverage explained from the rulebook up: what each defender is assigned, what the rules charge for it, and how to spot both live.
• EconomicsHow the NFL salary cap works, and why cap hell is a myth17 minThe NFL salary cap explained properly: where the number comes from, why cash is not cap, how signing bonus proration works, and what dead money really costs.
• GuideHow the NFL draft works, and why April grades are useless19 minHow the NFL draft works in full: eligibility, the order and its tiebreakers, compensatory picks, the clock, trading picks, and how to judge a class.
• ExplainerNFL playoff seeding explained, and what the tiebreakers test20 minHow NFL playoff seeding works: why division winners take the top four seeds, what the bye is worth, and the whole tiebreaker cascade down to the coin toss.
• ExplainerHow is the NFL schedule made? The formula, then the dates21 minYour club's 17 opponents were fixed by formula the moment last season ended. Only the weeks, days and kickoff times are chosen, and here is how.
• AnalysisExpected points added in football, and why yards lie21 minWhat expected points added measures in football: how an expected points model is trained on next scores, how EPA is computed, and how to read the figure.
• AnalysisDVOA explained: the football metric hidden in its name21 minDVOA in football, explained one word at a time: the success baseline, the circular opponent adjustment, the sign convention and what the model will not show you.
• TacticsCover 3 defense explained: three deep, four under, eight up21 minWhy Cover 3 is a run-defence decision that happens to leave three men deep, how the rotation works, where the seams sit, and how pattern matching rescued it.
• AnalysisCompletion percentage over expected, and the model beneath it19 minCPOE explained from the arithmetic up: how a completion probability is built, why a better model makes a worse quarterback metric, and what the number cannot see.
• ExplainerThe college football transfer portal explained, window by window19 minWhat the college football transfer portal really is, why there is one January window now, how the settlement money moves through it, and what entering costs.
• ExplainerThe college football playoff format, and how it got here21 minHow the college football playoff format works: the selection committee, automatic bids for conference champions, seeding, byes, and where games are played.
• GuideCollege football conferences explained: money, not maps20 minCollege football conferences explained as what they are: contracts. Grant of rights, revenue splits, championship game rules, and the 2026 alignment in full.
• TacticsBlitz packages explained: the arithmetic of extra rushers20 minBlitz packages explained from the protection rules up: how a free rusher is manufactured, what every extra rusher costs in coverage, and the rules that bound it.
• TacticsAir raid offense explained: fewer plays, far more reps21 minHow the air raid offense works: a handful of concepts run at huge volume, options built inside routes, three-step reads, and tempo that pins the defence.
• HistoryAFL NFL merger history: the deal that built the modern NFL19 minThe AFL NFL merger history in full: the bidding war that forced it, the terms agreed in June 1966, the antitrust statute Congress passed, and what it cost.

The NBA, the WNBA and the international game: spacing, shot selection, the cap, and how the three-point line rewrote the sport.

• GuideOlympic basketball qualification explained: the FIBA route19 minHow the twelve Olympic basketball places are won: the host berth, the World Cup route, the regional allocation, the qualifying tournaments and 3x3.
• GuideNBA In-Season Tournament explained: the NBA Cup format19 minHow the NBA Cup works now: the group draw, the four Cup Nights, the tiebreakers in order, the knockout bracket, prize money and which games count.
• AnalysisUsage rate in basketball explained, and what it hides18 minHow usage rate is calculated, why the formula counts only the possessions a player ends, why an assist never raises it, and how to read the number properly.
• ExplainerNBA two-way contracts explained: three slots, fifty games20 minHow NBA two-way contracts work: three slots a club, a flat half-minimum salary, fifty active-list games, no playoffs, and the conversion that fixes it.
• AnalysisNBA tracking data explained: what the cameras actually see18 minNBA tracking data explained properly: how SportVU became Second Spectrum and then Hawk-Eye, what optical skeletal tracking records, and what the public never gets.
• ExplainerNBA G League explained: who owns whom, and who gets called up20 minHow the NBA G League works: 31 teams, two-way contracts capped at three a side, the 50-game active list limit, assignments, call-ups and why Ignite was shut down.
• ExplainerNBA flagrant foul rules, points and automatic suspensions20 minThe NBA flagrant foul rules explained: what separates a Flagrant 1 from a Flagrant 2, the six criteria, the points system and when a suspension lands.
• GuideThe NBA All-Star format explained, and why it keeps changing20 minThe NBA All-Star format explained: the current US versus World round robin, how the 24 All-Stars are picked, and every rewrite since the draft era.
• ExplainerBasketball shot clock rules: 24, 14, 30 and 20 explained21 minHow the shot clock starts, stops and resets in the NBA, FIBA, NCAA men's and NCAA women's basketball, and why the reset number is the rule that decides games.
• TacticsZone defense in basketball explained: shapes, gaps and rules19 minHow a 2-3 and a 3-2 zone actually work, where every zone's gaps sit, why rebounding is the real weakness, and why the NBA rulebook keeps zone short.
• EconomicsThe WNBA salary cap explained: a hard cap tied to growth20 minHow the WNBA salary cap works: the revenue formula that now sets it, the supermax and core designation, roster limits, prioritisation and what comes next.
• AnalysisTrue shooting percentage explained: the formula and its limits21 minTrue shooting percentage explained from the scoring rules up: how the formula is built, why the free throw term is 0.44, and the four things it cannot see.
• TacticsNBA transition offence: winning before the defence sets17 minThe four-second window, the outlet, lane assignments, the trailer and the drag screen, why transition numbers disagree, and the offensive rebounding cost.
• TacticsSwitching defence in the NBA: the mismatch you invite22 minHow switching defense works in the NBA: what a switch actually buys, the mismatch it hands over, scram switches, pre-switching and the rebounding bill.
• TacticsSmall ball in the NBA: what the lineup really trades22 minA small ball lineup in the NBA swaps rim protection for switchability and spacing. What that trade costs, what it buys, and when a big team can punish it.
• AnalysisPlayer efficiency rating explained: what PER measures20 minHow player efficiency rating is built from a box score, why it rewards volume shooting, why it barely sees defence, and where the number still earns its keep.
• TacticsThe pick and roll explained: every answer leaves a man22 minThe pick and roll explained from the defence's side: what makes a screen legal, how switch, drop, hedge and ice each answer it, and who each one leaves open.
• AnalysisOffensive rating and defensive rating in the NBA, explained21 minWhy points per game is a tempo statistic, how possessions are estimated from a box score, and how to read a team from its offensive and defensive ratings.
• ExplainerNBA trade rules explained: salary out buys salary in19 minThe NBA trade rules explained in detail: the salary matching bands, what each apron actually stops, trade exceptions, the Stepien rule and the deadline.
• EconomicsThe NBA second apron explained: the line that takes tools18 minWhat the second apron is, what each spending line removes as a team crosses it, and why a frozen draft pick deters owners that a tax bill never could.
• EconomicsThe NBA rookie scale contract, and what it actually locks in19 minHow the NBA rookie scale contract works: two guaranteed seasons, two team option years, the 80 to 120 per cent band, and why second-round picks are not on it.
• ExplainerNBA replay review rules: what can and cannot be reviewed19 minThe NBA replay review rules explained: which calls review themselves, which need a coach's challenge, how Secaucus decides, and why obvious errors still stand.
• ExplainerHow the NBA play-in tournament format actually works19 minThe NBA play-in tournament format explained: which four teams enter, why one pair gets two chances and the other gets one, and what sixth place is worth.
• AnalysisNBA pace and space explained: possessions and geometry19 minPace is possessions per 48 minutes and has a formula. Space is rulebook geometry. What each one measures, why they are not the same idea, and how to read both.
• EconomicsNBA max contract explained: the three tiers and the aprons19 minWhat a max contract actually is: 25, 30 and 35 per cent of the cap, the supermax conditions, the 8 versus 5 per cent raise, and how the aprons bite.
• ExplainerNBA load management explained: the rule, not the debate18 minLoad management is now written law. Inside the Player Participation Policy: the star player test, the two-star rule, the road-game clause and the fines.
• ExplainerNBA foul rules explained: what each whistle actually costs21 minHow NBA fouls are classified and priced: personal against technical, the bonus, offensive and loose ball fouls, the take foul, defensive three seconds and fouling out.
• TacticsNBA defensive schemes explained: choosing what to give up23 minNBA defensive schemes explained as trade-offs: what drop, switch, blitz and zone each concede, why the rules made variety possible, and how to read one.
• TacticsMotion offense explained: rules instead of called plays22 minHow a motion offense works: the rules that replace called plays, the spacing that makes it readable, why the second cutter scores, and when coaches drop it.
• GuideMarch Madness bracket explained: how 76 teams get placed21 minThe March Madness bracket explained properly: the 76-team field, the NET and quadrant records, the committee's seed list, and the rules that beat seed order.
• AnalysisThe three-point revolution: how the NBA rebuilt its offence21 minThe three point revolution in the NBA, from the arithmetic up: why a three only needs two thirds of a two's make rate, and what spacing did to defence.
• EconomicsThe NBA salary cap explained: a soft cap with hard edges19 minHow the NBA salary cap works: where the number comes from, why Bird rights make it soft, what the luxury tax costs, and what each apron takes away.
• ExplainerHow the NBA draft lottery works, and what the odds hide20 minHow the NBA draft lottery works: fourteen balls, a thousand combinations, four picks drawn, flattened odds at the top, and why teams still tank anyway.
• GuideHow does NBA free agency work? Rights, not an open market20 minNBA free agency explained as a hierarchy of rights: restricted and unrestricted status, qualifying offers, offer sheets, Bird rights and cap holds.
• TacticsHelp defense explained: the promise every rotation pays21 minHelp defense in basketball explained from the shell out: gap position, the low man, rotation chains, digs and stunts, closeouts and the three-second limit.
• ExplainerThe goaltending rule in basketball, explained properly20 minThe goaltending rule in basketball, from both rulebooks: what counts as goaltending, how basket interference differs, the cylinder and the penalties.
• GuideFIBA rules vs NBA rules: every difference that matters20 minFIBA rules vs NBA rules compared from both rulebooks: court and three-point lines, 40 minutes against 48, the possession arrow, fouls and goaltending.
• GuideEuroLeague format explained: 20 clubs, play-in, Final Four19 minHow the EuroLeague format works: twenty licensed clubs, a 38-game double round robin, the Play-In Showdown, best-of-five playoffs and a Final Four.
• AnalysisEffective field goal percentage: what a three is really worth21 minEffective field goal percentage counts a made three as one and a half makes, because that is what a three pays. The formula, the uses, and the blind spots.
• TacticsDrop coverage in the NBA explained: the rim for the jumper20 minDrop coverage NBA explained from the arithmetic up: why the big sits back, what depth decides, how the short roll beats it, and why playoffs kill it.
• AnalysisBox plus minus explained, and the defence it cannot see22 minHow BPM turns a box score into an estimate of on-court impact: the RAPM regression underneath it, the coefficients, the team adjustment, and where it fails.
• ExplainerBasketball travelling rule explained, and the gather step21 minWhat the travelling rule really says in the NBA and FIBA books: how the gather works, why a legal drive shows three floor contacts, and where the codes split.

The four majors and the tours behind them: surfaces, scoring, ranking mathematics and the physics of a modern racquet.

• GuideWimbledon rules and traditions: what the club insists on18 minThe all-white regulation, the seeding, the Queue, the roof and curfew, the final-set tiebreak and the prize money, set out as the rules they actually are.
• GuideUS Open tennis format explained: sessions, roofs, heat18 minThe US Open format from the inside: two ticketed sessions a day, two retractable roofs, the heat rule, the tie-break it invented and the rebuilt mixed doubles.
• ExplainerTennis wildcard entry explained: who gets one and why18 minHow tennis wildcards are awarded, how many each draw holds, the reciprocal deals between federations, and why a protected ranking is not one.
• AnalysisTennis return statistics explained: what they measure18 minWhat tennis return statistics actually count, how the deuce and advantage sides differ, why return games won beats return points won, and how surface changes everything.
• AnalysisTennis rally length analysis: how short points really are18 minHow rally length is distributed in professional tennis, why the 0-4 shot band dominates, how surface and gender shift it, and what to train for it.
• ExplainerTennis racquet string tension explained: power and control19 minWhat string tension changes in the collision, why looser strings hit harder, how materials and patterns interact with the number, and why tension falls straight away.
• ExplainerTennis qualifying draw explained: sizes, rounds, points18 minHow a tennis qualifying draw is sized and seeded, where the cut-off falls, how lucky losers are drawn, and what qualifying is worth in prize money and ranking points.
• EconomicsTennis prize money explained: how the pot is divided18 minHow a tennis prize pot is split down the draw, why the first-round cheque carries the tour, what a player pays out of it, and where the money is really made.
• ExplainerTennis medical timeout rules and how they are policed18 minWhat a tennis medical timeout allows, the three minute limit, why cramp is treated differently, and how heat, bathroom and attire breaks now work.
• AnalysisTennis first serve percentage: why higher is not better18 minWhy a higher first serve percentage can mean a worse serve, how the second serve sets the optimum, and the metric that actually judges a serving day.
• ExplainerTennis doubles rules explained: serving, order, tactics18 minDoubles serving and receiving order, where partners may stand, Australian and I formations, no-ad scoring, match tiebreaks and mixed doubles rules.
• ExplainerTennis code violation rules: from warning to default18 minHow the tennis code of conduct works: the warning, point and game penalty ladder, immediate default, the offence list, fines and major offences.
• ExplainerTennis challenge system rules and electronic line calling19 minThe tennis challenge system rules in full, how many challenges a player gets, and how live electronic line calling replaced line judges on tour and at three Slams.
• ExplainerTennis ball types explained: ITF specs, felt and altitude19 minThe three approved ITF ball types, the high altitude ball, pressurised against pressureless, what the felt does, and how a ball degrades across a nine-game cycle.
• ExplainerHard court tennis explained: an engineered surface18 minA hard court is a manufactured product, not a material. How the base, the cushion and the sand in the paint set its speed, and why it took over the sport.
• ExplainerGrass court tennis explained: the surface as a crop18 minWhat perennial ryegrass, an eight millimetre cut and eleven months of growing do to a tennis ball, and why almost nobody can afford to run a lawn.
• GuideFrench Open explained: clay, roofs and night sessions18 minHow Roland-Garros actually works: the five layers under the red dust, the two retractable roofs, the 8.15pm night slot and the row it started, and who gets in.
• ExplainerDavis Cup format explained: how the 2026 season works18 minHow the Davis Cup format works now: the Final 8 in Bologna, two rounds of Qualifiers, the World Group tiers below them, and why the competition keeps being rebuilt.
• ExplainerClay court tennis explained: layers, sliding and marks20 minHow a clay court is built in layers, why sliding has to be learned, the maintenance it demands, the ball mark tradition, and red against green clay.
• AnalysisBreak point conversion explained: why the stat misleads18 minWhy a low break point conversion rate usually means a player is creating more chances, what the stat can and cannot predict, and how to read it live.
• ExplainerBillie Jean King Cup format: how the 2026 season works18 minThe Billie Jean King Cup format in full: the eight-nation Finals in Shenzhen, the April Qualifiers, the November play-offs and the Regional Groups below.
• GuideAustralian Open format explained: heat, roofs and January18 minThe Australian Open format from the inside: the five-level heat stress scale, three roofed arenas, four surfaces in one century, and what going first costs players.
• ExplainerATP Finals qualification explained: how the top eight get in18 minHow ATP Finals qualification works: the Race against the 52-week ranking, the seven automatic places, the Grand Slam provision, doubles, groups and tiebreakers.
• ExplainerTennis tiebreak rules: seven points, and why that is fair21 minTennis tiebreak rules in full: the seven-point set tiebreak, the two-point margin, the serving rotation, ends changes, the ten-point match tiebreak and no-ad.
• AnalysisTennis serve speed explained: why fastest is not hardest24 minHow tennis serve speed is measured, how much of it disappears before the returner sees the ball, and why spin and placement beat the number on the screen.
• GuideTennis season calendar explained, and why nobody owns it22 minWhy the tennis season runs eleven months: the surface blocks, the mandatory events, the majors no tour controls, and the governance gap underneath all of it.
• ExplainerThe tennis let rule explained: when a point gets replayed21 minThe tennis let rule explained properly: why a net-cord serve is replayed, how hindrance works, what happens on a second serve, and where a let does not apply.
• AnalysisTennis court surfaces: the difference is two variables22 minWhat separates clay, grass and hard courts is how much pace the ball keeps off the bounce and how high it sits up. Everything else follows from that.
• ExplainerTennis scoring explained: why some points matter more20 minHow points, games, sets and matches nest inside each other, why deuce needs a two-point margin, how tiebreaks work, and why the better player can lose.
• ExplainerATP rankings explained, and where the WTA rules differ19 minHow tennis rankings are really calculated: the rolling 52-week window, the best-of-N count, what defending points means, and how the draw follows from it.
• ExplainerHow Hawk-Eye works in tennis: a prediction, not a photo21 minThe camera array, the modelled trajectory, why the mark is an ellipse, what the margin of error means, and how live calling ended the line judge's job.
• ExplainerGrand slam seeding explained, and what a seed does not buy21 minHow the majors turn a ranking list into a seeded draw: 32 seeds in 128, the placement rules, the entry cut-off that is not the seeding cut-off.

Rugby union and rugby league: the set piece, the breakdown, the laws that keep changing, and the competitions that matter.

• ExplainerTMO rugby explained: how the video referee makes a call18 minWhat the TMO in rugby may review, the clear and obvious test, the two-phase limit, how the off-field foul play review works and why the protocol keeps changing.
• GuideSix Nations format explained: five rounds and no knockout20 minThe Six Nations format explained in full: the single round robin, bonus points and the Grand Slam bonus, the tiebreakers in order, and why there is no final.
• ExplainerRugby World Cup format explained: 24 teams, six pools21 minRugby World Cup format explained in full: the six pools of four, the bonus points, the draw that used to be made three years early, and the round of 16.
• ExplainerRugby scrum rules explained: the bind, the feed, the shove22 minRugby scrum rules explained from the mark to the ball leaving: who binds where, why crouch-bind-set replaced the hit, and what a straight feed is worth now.
• ExplainerRugby league vs rugby union: how the two codes diverged18 minRugby league vs rugby union explained properly: the six-tackle set, the play-the-ball, thirteen against fifteen, scoring values, and what each code does better.
• ExplainerRugby breakdown laws explained: tackle, ruck and jackal21 minThe rugby breakdown laws explained in full: what the tackler must do, the exact moment a ruck forms, how the gate works, and what makes a jackal legal.
• EconomicsNRL salary cap explained: what counts and what does not20 minHow the NRL hard cap works, what counts as a player payment, the third-party agreement rules behind most disputes, how it is audited and what a breach costs.
• ExplainerThe HIA rugby concussion protocol, explained step by step22 minHow rugby's head injury assessment works: the two removal criteria, the twelve-minute test, the two follow-ups, and why the player never gets a vote.

The majors, the tours and the equipment: course setup, strokes gained, handicapping and how distance reshaped design.

• GuideHow to qualify for the Masters: every route to Augusta18 minEvery published way into the Masters field, from the lifetime champions exemption to the world ranking cut-offs, and how Augusta National builds the list each year.
• AnalysisStrokes gained explained: how golf finally learned to count19 minStrokes gained explained properly: why fairways hit and putts per round mislead, how the expected-strokes baseline works, and what each category tells you.
• GuideThe Ryder Cup format explained, and why it hurts so much18 minHow the Ryder Cup format works: matchplay scoring, foursomes and fourballs, concessions and dormie, the 28 points, the retention rule and captain's picks.
• ExplainerHow do golf handicaps work? Index, slope and strokes21 minHandicap Index, Course Handicap and Playing Handicap are three different numbers. How each is calculated, what Slope Rating measures, and why the caps exist.
• ExplainerGolf rules penalties explained: one stroke, two, or out22 minHow golf's penalty ladder works: what costs one stroke, what the general penalty is, when relief is free, and what still earns disqualification after the rewrite.
• AnalysisGolf course setup explained: the four dials that set scoring21 minHow green firmness, hole locations, rough height and fairway width turn the same course into a birdie-fest or a survival test, without moving a single yard.
• ExplainerGolf ball and driver rules: the limits that shape the game20 minWhat the Overall Distance Standard, the initial velocity limit, the 460cc driver and the CT test measure, how each is tested, and where the rollback stands.
• ExplainerFedEx Cup points explained: how golf's season is won22 minHow FedEx Cup points are earned, weighted by event, cut down through three playoff rounds and reset at East Lake, and what qualifying is actually worth.

Formula 1, IndyCar and endurance racing: aerodynamics, tyre strategy, the regulations, and what the timing screens really show.

• GuideWorld Rally Championship explained: stages and points18 minHow the WRC works: special stages against the clock, pace notes and the road book, running order on gravel, service park rules, Rally1 cars and the points.
• GuideNASCAR rules explained: stages, the Chase and charters18 minHow NASCAR works now: the spec Next Gen car, stage points, the Chase that replaced the elimination playoffs, overtime restarts, inspection and charters.
• GuideIndyCar explained: how the series differs from Formula 118 minHow IndyCar works: one spec chassis with two engine makers, ovals and road courses in one season, the aeroscreen, push-to-pass, Indy 500 qualifying and charter economics.
• GuideFormula E explained: energy limits, Attack Mode and duels18 minFormula E races are decided by a fixed energy allowance, not outright speed. How the kilowatt-hour budget, Attack Mode, Pit Boost and qualifying duels work.
• GuideFormula 2 and Formula 3 explained: the ladder to F118 minHow Formula 2 and Formula 3 work: the spec cars, the sprint and feature race weekend, reversed grids, superlicence points, and what a season in either actually costs.
• ExplainerF1 track limits rules, and why the white line decides16 minHow F1 track limits rules work: the white line as the boundary, why some corners use sensors and others marshals, lap deletion, and the advantage test.
• ExplainerF1 testing restrictions: the rules that ration track time18 minHow F1 testing restrictions work: the in-season ban, pre-season days, previous-car testing, filming day mileage and the wind tunnel sliding scale.
• AnalysisF1 telemetry data explained: what the car actually logs18 minWhat an F1 car measures, how fast it samples, what reaches the pit wall live, the rule against sending data back, and how engineers read a lap trace.
• ExplainerF1 sprint race format explained, and how it has changed18 minThe F1 sprint race format in full: the running order, sprint qualifying, the 100km distance, the points, and every revision the format has been through since 2021.
• AnalysisF1 setup explained: every lever a team can actually pull18 minWhat a Formula 1 team can change on a car, from wing angle and ride height to anti-roll bars, camber, differential and brake bias, and why setup is always a compromise.
• ExplainerF1 safety car rules: VSC, restarts and red flags explained18 minHow the safety car, virtual safety car and red flag procedures work in Formula 1, what the delta demands, who unlaps, and what changed after Abu Dhabi 2021.
• ExplainerF1 points system explained: races, sprints and ties18 minThe F1 points system explained in full: the 25-point scale, sprint points, the reduced scales for shortened races, the constructors' title, and how ties are broken.
• ExplainerF1 pit stop rules: what the regulations actually allow18 minThe rules behind an F1 pit stop: the two-compound requirement, the 80km/h limit, unsafe release, the refuelling ban, crew limits and wheel retention tests.
• ExplainerF1 penalties explained: five seconds to a stop-and-go18 minWhat each in-race F1 penalty costs, how a driver serves it, how penalty points reach a race ban, and how the stewards reach a decision you can predict.
• ExplainerF1 parc fermé rules: what teams can and cannot touch18 minHow F1 parc fermé works: when the car is locked, the permitted works list in full, the front wing exception, pit lane starts, and the post-race impound.
• AnalysisF1 ground effect explained: the floor that makes the car18 minHow F1 ground effect works, what a venturi tunnel does, why the floor has to stay sealed, what caused porpoising in 2022, and why the concept was banned.
• ExplainerF1 grid penalties explained: how a penalised grid is built18 minHow F1 grid penalties accumulate, why ten places rarely costs ten, what the fifteen-place threshold does, and why teams choose which weekend to take the hit.
• ExplainerF1 gearbox and engine penalties: the component allowance18 minHow F1 gearbox and engine penalties work: what counts as a power unit element, the season allowance, the ten and five place ladder, and why teams stack.
• ExplainerF1 fuel and energy rules: flow limits, ERS and the sample18 minHow F1 fuel and energy rules work: the fuel flow ceiling, the race allowance, the post-race sample, per-lap ERS limits and the sustainable fuel switch.
• AnalysisF1 downforce and drag explained: choosing a wing level18 minWhy every F1 setup is a bargain between cornering speed and straight-line speed, how lift-to-drag ratio ranks a part, and how a circuit decides the wing.
• GuideLe Mans Hypercar explained: two rulebooks, one grid22 minLe Mans Hypercar explained properly: the two routes into the top class, how balance of performance works, energy rules, traffic, stints and the 2026 changes.
• EconomicsThe F1 cost cap explained, and what it does not cover27 minHow Formula 1's cost cap works: what counts as relevant cost, the exclusions, the audit and certificate, the breach categories and the sanctions available.
• TacticsF1 tyre strategy explained: the arithmetic of a pit stop21 minF1 tyre strategy explained from the sum it all rests on: pit lane time lost against lap time gained, plus graining, degradation, undercuts and safety cars.
• HistoryF1 safety history: how the halo went from mocked to vital21 minF1 safety history behind the halo: why the sport only changed after losses, what the survival cell, HANS and tethers really do, and what is still unsolved.
• ExplainerF1 qualifying format explained: how the grid is set24 minHow the F1 qualifying format works: the three-segment knockout, why the out-lap decides the lap, what parc ferme locks, and how grid penalties land.
• ExplainerF1 flags explained: what every signal actually demands21 minEvery Formula 1 flag, what it obliges a driver to do, and why a piece of cloth still beats a radio message when a car is covering 83 metres a second.
• ExplainerF1 engine power unit explained: how the hybrid works25 minHow an F1 power unit works: the V6 and its thermal efficiency, the split turbo, the MGU-K, the energy rules, and what the 2026 regulations changed.
• ExplainerF1 aerodynamics explained: why downforce is the whole sport26 minHow F1 aerodynamics work: how a wing makes downforce, why the floor beats the wings, what dirty air does to a chasing car, and why speed squares it.
• ExplainerDRS in F1 explained: the fix that admitted the problem23 minHow DRS worked in F1: the flap, the detection point, the one-second gap, why zone placement decides overtaking, and why the 2026 rules deleted it.

Track, field and the road: pacing, biomechanics, records, and the technology arguments that follow every fast time.

• GuideThe World Marathon Majors explained, and why it is eight22 minThe Marathon Majors are no longer six. How Sydney and Cape Town got in, what candidacy takes, why Boston cannot hold a world record, and how the stars work.
• ExplainerWorld Athletics rankings explained: points, places and quotas18 minHow the World Athletics rankings turn a time or a distance into a ranking position, why placing scores were cut in 2026, and how championship quotas work.
• GuideWorld Athletics Championships format, round by round22 minThe 49-event programme, the four routes in, heats and fastest losers, twelve to a field final, the lane draw nobody reads, and the new Ultimate Championship.
• ExplainerWind assistance rules in athletics, and the +2.0 line22 minHow the +2.0 m/s wind limit works, which events it covers, how the gauge is placed and read, the decathlon average, and why altitude gets away with it.
• AnalysisVO2 max explained for runners, and what it cannot tell you21 minWhat VO2 max measures, why your watch is guessing, and why running economy and threshold decide races once everybody in the field has a big engine.
• ExplainerSteeplechase explained: 28 barriers and seven water jumps20 minHow the steeplechase works: barriers that do not fall over, a pit that is a slope rather than a pool, a lap that is not 400 metres, and the rules behind it.
• AnalysisSprint start biomechanics explained, blocks to first step20 minWhat actually happens between the gun and the first stride, why medium block spacing wins, what the rear leg is really doing, and where the start is won.
• ExplainerRelay changeover rules: why the exchange zone decides it22 minHow relay changeovers work: the 30-metre zone, blind and visual exchanges, the go-mark, dropped batons and the lane rules that disqualify most teams.
• ExplainerRace walking rules explained, and how the penalty zone works18 minThe two-part definition, why the rule is written around the human eye, how red cards build to a sanction, and what the penalty zone changed about the sport.
• ExplainerPole vault rules explained, from the box to the crossbar18 minThe four ways to fail a vault, the 80cm the crossbar can be moved, the countback that settles ties, and why the last vaulter left gets five minutes.
• ExplainerOlympic qualification standards explained, and how to get in19 minHow Olympic entry standards and the world ranking route fill a capped field, why the qualification window distorts a season, and what national quotas cost.
• GuideMarathon pacing strategy explained: fuel before fitness21 minThe marathon is a fuel problem before it is a fitness problem. How pacing manages a finite store of carbohydrate, and why a fast first mile costs minutes.
• AnalysisLactate threshold explained, and why lactate is not the enemy19 minWhat the lactate threshold measures, why lactate is a fuel rather than a waste product, how the test works, and why five detection methods give five answers.
• ExplainerJavelin rules explained: what makes a throw valid or a foul19 minThe javelin rules that decide a throw: head-first landing, the 28.96 degree sector, when you may leave the runway, and the implement specification behind it all.
• AnalysisCarbon plate super shoes explained: what they actually do20 minHow carbon plate super shoes work: what the foam does, what the plate really does at the toes, why the gain varies by runner, and how the rules limit them.
• ExplainerHow does drug testing work in sport? The full process22 minHow drug testing works in sport: out-of-competition testing, whereabouts, sample collection, A and B samples, strict liability and how a ban is set.
• ExplainerHigh jump rules explained: countback, passing, jump-offs19 minThe high jump rules that decide competitions: three consecutive failures, why passing heights is a gamble, how countback ranks a tie, and when a jump-off happens.
• GuideThe Diamond League explained: points, final, prize money18 minHow the Diamond League really works: 14 one-day meetings, 32 disciplines, points that only buy a seat at the final, and a winner-takes-all night for the trophy.
• ExplainerDecathlon scoring explained, with the actual arithmetic20 minDecathlon scoring explained using the real formula: the three constants for all ten events, worked examples, and where the points actually are.
• ExplainerAthletics false start rules, and the 0.100 second line19 minHow the false start rule works, why the blocks measure force rather than movement, and where the published science on the 0.100 second threshold disagrees.

Boxing and mixed martial arts: scoring, weight cutting, sanctioning bodies and how a fight is actually won on the cards.

• ExplainerBoxing gloves and wraps rules, and who actually checks them18 minWhere the eight and ten ounce glove line falls at each sanctioning body, what a legal hand wrap contains, and why an inspector sits in the changing room.
• ExplainerWeight cutting in MMA explained, and why the clock causes it20 minHow weight cutting in MMA works: the water, not the fat, the fight-week timeline, why a day-before weigh-in created the incentive, and what a real fix needs.
• ExplainerThe WBC, WBA, IBF and WBO explained, and why four belts exist19 minWhat the WBC, WBA, IBF and WBO actually do, how sanctioning fees work, what interim and super titles are for, and why undisputed champions rarely last.
• ExplainerUFC rules explained: the fouls, the stoppages, the reasons20 minThe unified rules of MMA, clause by clause: the fouls list, the grounded opponent definition, how a fight ends, and which rules protect fighters rather than optics.
• ExplainerMMA judging criteria explained, and why rounds go wrong19 minHow MMA judges score a round under the unified rules: damage first, what a takedown is really worth, when a 10-8 is owed, and why three cards still disagree.
• ExplainerHow UFC matchmaking works, and who really picks the fights19 minWho decides a UFC matchup, why the rankings only advise, when an interim title appears, how a card gets built, and why a fighter's leverage is so weak.
• ExplainerThe boxing scoring system explained, and why judges disagree18 minHow the ten-point must system works, what 10-9, 10-8 and 10-7 actually mean, how deductions reach the cards, and why three judges see three different fights.

The NHL and the international game: systems, special teams, expected goals and the economics of a hard cap.

• TacticsThe hockey power play explained: why four cannot cover five21 minHow a power play in hockey really works: minor, double and major penalties, the umbrella and the 1-3-1, the one-timer, and why the zone entry decides it.
• ExplainerThe NHL playoff format explained, from points to the Cup19 minHow the NHL playoff format works: the loser point and what it does to a race, the divisional bracket and wild cards, and playoff overtime with no shootout.
• ExplainerNHL penalties explained, from a minor to a match penalty21 minNHL penalties explained: minors, majors, misconducts, coincidentals, delayed calls and penalty shots, plus why the standard visibly moves across a season.
• ExplainerNHL overtime and shootout rules, and the playoff opposite19 minHow the NHL overtime and shootout rules work: three a side, the long change, four on three, the shootout procedure, and why the playoffs do the reverse.
• GuideThe NHL draft explained: teenagers, rights and the slide22 minThe NHL draft explained: eligibility and the September cutoff, seven rounds, rights windows by route, the slide rule, and why it is the least predictable draft.
• ExplainerIcing and offside hockey rules, and the sense behind them20 minHow the icing and offside hockey rules work: why offside keys on the puck, the tag-up, hybrid icing, the exemptions and the faceoff that follows.
• EconomicsHow the NHL salary cap works, and why LTIR is not free money19 minThe NHL salary cap explained: where the number comes from, how escrow enforces the split, what LTIR actually buys, and the arithmetic behind a buyout.
• AnalysisExpected goals in hockey explained, and where the model breaks18 minHow expected goals works in hockey, why location tells you less than in football, and the rebounds, screens and goaltending the model cannot see.

Major League Baseball and beyond: pitch design, park factors, the rule changes of the 2020s and the statistics behind them.

• AnalysisSpin rate in baseball explained: rpm is only half of it20 minWhat spin rate measures, why active spin and spin axis decide whether the revolutions do anything, and how a movement number is built out of them.
• AnalysisWAR explained: what the baseball stat actually measures20 minWhat WAR actually measures in baseball: the replacement-level question underneath it, what each component contributes, and why the public versions disagree.
• TacticsPitch design in baseball explained: engineering movement22 minPitch design in baseball explained: what trackers measure, why spin efficiency beats raw spin, how seam-shifted wake broke the old model, and the injury argument.
• AnalysisPark factors in baseball: why no two ballparks are equal20 minHow park factors are built, what actually varies between ballparks, why a single season of the number is useless, and what the adjustment still cannot fix.
• AnalysisOPS+ explained: how baseball's adjusted OPS really works19 minThe OPS+ formula, the park and league adjustment underneath it, and the reason a figure of 145 does not mean a hitter was 45 per cent above average.
• ExplainerMLB waivers and options explained: the roster's back door18 minMLB waivers and options explained properly: how option years are burned, why the five-assignment limit killed the shuttle, and what happens after a DFA.
• ExplainerMLB service time explained: 172 days and six long years18 minMLB service time explained from the day count up: what 172 days buys, how Super Two works, why a fortnight in April is worth a year, and what the CBA did.
• ExplainerMLB roster rules explained: the 26, the 40 and the crunch18 minHow MLB roster rules work: the 26-man active roster, the 13-pitcher limit, what the 40-man is really for, September expansion and the November squeeze.
• ExplainerMLB playoff format explained: byes, seeds and short series20 minHow the 12-team bracket is built, what a first-round bye is really worth, why home field matters less in baseball, and the honest case against the format.
• AnalysisMLB pitch clock rules and what they actually changed22 minHow the MLB pitch clock rules work: the timer with bases empty and runners on, the automatic ball and strike, and why the disengagement limit matters most.
• ExplainerMLB draft explained, from the lottery to the bonus pool18 minThe MLB draft explained properly: 20 rounds, the lottery that ended the certain reward for losing, how bonus pools bind clubs, and why leverage sets a bonus.
• ExplainerMLB arbitration explained, file-and-trial and Super Two18 minMLB arbitration explained properly: who qualifies, what Super Two really is, why a panel must pick one figure or the other, and what file-and-trial changed.
• GuideMinor league baseball explained, complex to Triple-A18 minMinor league baseball explained after the 2021 reorganisation: four levels, 120 clubs, who owns what, who pays the players and the clocks that decide careers.
• EconomicsHow the MLB luxury tax works, and why there is no cap18 minThe MLB luxury tax explained properly: what the competitive balance tax is charged on, why average annual value decides everything, and what deferrals do.
• AnalysisFIP explained: the baseball stat that ignores your fielders20 minFIP explained for baseball fans: the exact formula, where the 13, 3 and 2 come from, how the season constant is set, and the three things it throws away.
• AnalysisExit velocity and launch angle explained, and what they miss20 minExit velocity and launch angle explained: the 95 mph line, the 8 to 32 degree sweet spot, how a barrel is defined, and what both numbers still miss.
• ExplainerThe designated hitter rule explained, and how a team loses it19 minThe designated hitter rule explained: how the DH is named, the five moves that end the role mid-game, and the two-way provision behind the Ohtani rule.
• AnalysisCatcher framing explained, and what happens to it now21 minFraming is the skill of not moving. How catchers earn called strikes, how the metric is built, and what the automated strike zone does to its value.
• ExplainerThe baseball strike zone explained: the rule and the real one21 minThe strike zone is a solid over a five-sided plate, sized by the batter, and it is wider than the plate. What the rulebook says, and what gets called.
• ExplainerThe baseball shift ban explained: what the rule really says20 minThe shift ban is not a ban on shifting. The exact positioning requirement, the two moments it is tested, the inning lock, and what a violation now costs.
• ExplainerThe baseball infield fly rule, and the exploit it kills21 minThe baseball infield fly rule explained: every condition, what ordinary effort really means, why the ball stays live, and the trap that catches runners.
• ExplainerBaseball extra innings rules, and the runner nobody put there18 minThe baseball extra innings rules explained: who the automatic runner is, why the postseason plays a different game, and what it does to a manager.
• ExplainerThe balk rule in baseball explained: deception on the mound21 minWhat a balk actually is, the thirteen enumerated acts, why the windup and set differ, what happens after the call, and how amateur baseball rules it differently.
• AnalysisBABIP explained: what baseball's luck number really measures18 minBABIP explained for baseball: the formula, the quirks in its denominator, why pitchers regress and hitters do not, and how to tell noise from a real change.
• ExplainerThe automated ball strike system, and what it actually changed18 minHow the automated ball strike system works: the two challenges, who is allowed to ask, the zone cut from a batter's own height, and what it does not fix.

Grand tours, classics and the track: power data, team tactics, aerodynamics and how a race is really controlled.

• ExplainerPeloton drafting explained, and why the bunch rides as it does20 minWhy drag dominates at racing speed, how the wake behind a rider works, why shelter moves sideways in a crosswind, and how a rotating paceline actually functions.
• ExplainerHow the Tour de France jerseys work, and what each one means18 minThe Tour de France jerseys explained properly: what yellow, green, polka dot and white actually count, how the classifications are scored, and who wears what.
• GuideGrand tour team selection: how eight places get filled21 minHow grand tour team selection works: the eight places, the roles they cover, the sprinter trade-off, and why the route decides more than the riders do.
• ExplainerCycling time trial explained: inside the race of truth20 minHow a cycling time trial works: start intervals, the drafting ban and how it is policed, the position trade-off, pacing, team time trials and UCI rules.
• TacticsCycling team tactics explained: why nobody wins alone19 minHow cycling team tactics work: drafting, domestiques, breakaway arithmetic, echelons, lead-out trains, and why the strongest rider so often loses the race.
• AnalysisCycling power meters and FTP explained, watt by watt18 minWhat a cycling power meter physically measures, why normalised power exists, what FTP really approximates, and why critical power is better founded.
• ExplainerCycling aerodynamics explained: why position beats kit20 minHow cycling aerodynamics really work: the cube law, CdA, why most of the drag is the rider, yaw angles, wind tunnel testing and the UCI equipment rules.

Ideas that cross the touchline: broadcast money, betting markets, sports science, governance and the economics of a season ticket.

• ExplainerWADA anti-doping explained, and why the law decides it18 minHow the World Anti-Doping Code actually works: strict liability, the Prohibited List test, whereabouts rules, testing, sanctions and appeals to CAS.
• EconomicsSports sponsorship deals explained, and what they buy19 minWhat a sponsor actually buys, how category exclusivity is drawn, why media value misprices an association, what activation costs, and where the rules bite.
• AnalysisThe sports analytics department explained, data to decision21 minWhat a sports analytics department does: the five workstreams, the cleaning nobody sees, why the reporting line decides everything, and how to judge one.
• EconomicsSalary cap comparison: how sports leagues limit spending19 minA comparison of salary cap systems across sports leagues: the hard cap, the soft cap with exceptions, the tax with no ceiling and the ratio test with no cap.
• AnalysisPromotion and relegation vs the franchise model, and the price22 minPromotion and relegation vs the franchise model: what an open pyramid buys, what a closed league buys, and how to read the balance evidence honestly.
• EconomicsHow sports TV rights work, and who actually gets paid19 minWhat a sports rights package actually contains, how the tender and the sealed bid work, how the money reaches clubs, and why streamers changed the bidding.
• EconomicsHow are stadiums financed, and who really pays for them20 minWhy a stadium never pays for itself on tickets, how the capital stack is built from equity, debt, naming rights and public money, and who keeps the revenue.
• EconomicsGuaranteed contracts in sport, and why the NFL is different19 minWhat guaranteed means in the NFL, NBA, MLB and football, why headline contract numbers mislead, and how non-guaranteed deals shift risk onto players.