How the IPL auction works: rules, purse and retentions

Almost every other major sports league assembles its squads through a draft, a trade market or a negotiated transfer. Franchise Twenty20 cricket, and the Indian Premier League most visibly, does it by putting cricketers on a floor and letting money decide in public. It is the only recruitment system in world sport that is also a televised event, and that fact shapes both the rules and the behaviour of the people holding the paddles.

The auction is usually described as chaos. It is not. Understanding how the IPL auction works means understanding a small set of hard constraints that never move, and then watching ten intelligent organisations try to buy a cricket team inside them while the clock runs and every rival can see exactly what they are doing.

Nearly every decision that looks insane on the day is the predictable output of those constraints meeting scarcity.

The auction is a mechanism design problem, not a shopping trip

Strip away the television and four rules do all the work.

A franchise has a hard purse, identical to every rival's, fixed before the day and reduced by every commitment including retentions. It must end with a squad inside a minimum and maximum size. It may contract only a limited number of overseas players, and it may field only four of them. And it bids on lots in an order it does not control, set by the league, with no ability to skip ahead to the player it actually wants.

That last constraint is the one people underrate. In a normal market you can wait. In an auction you cannot, because the money you spend on lot 14 is money that does not exist for lot 96, and you have to decide about lot 14 before you find out what lot 96 costs. Every bid is made under uncertainty about the price of every bid still to come.

This is what economists call a sequential auction under a budget constraint, and it has a known property: the optimal strategy is not to value players correctly. It is to value them against the cheapest remaining way of filling the same hole, which is a number nobody in the room knows yet. A franchise that pays a fair price for a good player and then cannot afford a wicketkeeper has behaved rationally on every individual lot and irrationally overall.

Everything below follows from those four constraints. The retention slab, the right to match card, the accelerated round, the strange late bargains, the eleventh overseas signing who never plays. None of it is decoration.

• Indian players63.6%
• Overseas players36.4%

A rule, not an estimate. The overseas limit applies to the eleven and not to the squad, which is why franchises contract more overseas players than they can ever select.

Show the numbers

Who can actually take the field

Item	Value
Indian players	7
Overseas players	4

Why the IPL auction sells players rather than drafting them

The league began with no history. No historic clubs, no academy pipelines, no legacy registrations, no inherited contracts. Every franchise started on the same morning with an empty squad sheet and the same amount of money.

A draft and an auction do the same underlying job in that situation, which is to stop the wealthiest owner simply outspending everyone. They do it in different currencies. A draft rations by order of pick, and rewards failure on purpose: finish last, choose first. An auction rations by price under a shared ceiling, and rewards preparation instead.

The auction also fits a league whose labour pool is global rather than national. A draft assumes a reasonably homogeneous supply of players who are all available for the whole season. The pool for a franchise league is nothing like homogeneous. A player's value depends on whether he counts against the overseas quota, whether his board will release him for the full tournament, and whether he does something nobody else on the floor can do. Price discovery handles that. A draft order cannot.

And an auction produces an event. Two days of live television in the middle of the off-season, with the league's own brand at the centre of it and every franchise's plan exposed in real time. That is worth money, and nobody in the room pretends otherwise.

The purse is a hard ceiling, and holding money is not saving

The spine of the system is the salary cap, which everyone calls the purse. Every franchise gets the same figure. The BCCI sets it centrally and raises it between cycles as the league's revenue grows, and the current number is published by the league rather than negotiated club by club. Every rupee committed at auction, and every rupee charged for a retained player, comes off it. So does any mid-season replacement signing, which is funded out of whatever survives the auction.

Three consequences follow.

Money is genuinely finite. This is not football, where a club that decides on the day that a player is worth more can simply pay it. Overspend early and you will be bidding with loose change in the last hour, and loose change buys nothing while six rivals still have real money. The purse converts every purchase into a comparison with every future purchase.

Unspent purse is not a virtue. This is the point most casual viewers have backwards. A franchise that finishes the day with a healthy balance has not been disciplined, it has failed to buy anything at the price the market was charging, and it now owns a worse squad and a number that cannot be spent. Squad minimums still bind. There is no carryover into next season's playing strength. The money was a budget, not an asset.

The purse is a wage bill, not a transfer fund. There is no selling club, so there is no fee. The winning bid is the player's salary for the season. This is why IPL sums look enormous next to football transfer fees and modest next to football wages, and why comparing an auction price with a transfer fee is a category error. The nearest equivalent elsewhere is a hard team salary cap with the entire roster negotiated on a single afternoon.

Retention is a bet against the market, and the price is fixed in advance

Before a mega auction, franchises may keep a limited number of players from the outgoing squad rather than send them to the floor. Each retention is charged to the purse at a price the league publishes in advance, on a sliding scale: the first retention costs the most, later ones cost progressively less, and uncapped players are charged at a much lower rate.

The number that matters is that the charge is fixed regardless of what the player would fetch.

That single design choice is what makes retention interesting. A retention is not a discount and it is not a loyalty payment. It is a bet, and the bet is precise. This player is worth more to us than the slab price, and more than whatever else we could buy with the slab price.

Both halves of that sentence have to be true. A franchise can be entirely right that a player is excellent and still be wrong to retain him, because the slab charge would have bought two useful cricketers on the floor.

The slab is usually generous for a genuine star and punitive for a good squad player. That asymmetry is the whole design. It makes the top two names obvious and the third and fourth agonising.

• 18uSlab charge for the retention
• 11uWhat he later fetched on the floor
• 7uPurse burned on being wrong

Constructed figures in abstract units of purse, not rupees. The BCCI publishes the real slab charges each cycle and they change between cycles.

Read that as what it is, a piece of arithmetic rather than a claim about anybody real. A franchise pays 18 units to keep a player the market later valued at 11. It has not lost 18. It has lost 7, plus everything those 7 could have bought late in the day when prices were soft, which in a well-run auction is a specialist bowler and a reserve keeper.

The reverse case is the one franchises live for. Retain at 18 a player the room would have driven to 30, and the difference is not saved money. It is 12 units of purchasing power in a hall where nobody else has any spare.

Retention is also a bet on things that never show up in a general valuation. A captain who has read the home surface for six years. A spin pairing built for a slow, gripping square. A batter whose method survives when the ball stops coming on. Those are real and they are worth paying for, and the reason franchises still get them wrong is that the same qualities are invisible to everyone else in the room, which means there is no market check on the number you have talked yourself into.

The right to match turns your rivals into your valuers

The right to match card is the compromise between an open market and squad continuity. A franchise lets a player go to the floor, watches the bidding, and then has the option to match the winning bid and keep him. Cards are rationed, and their number is tied to how many retentions the franchise has already used, so the two instruments trade against each other rather than stacking.

Under the current form of the rule, the leading bidder is invited to raise the bid one final time before the card can be played. That amendment exists because of a specific abuse. Without it, a rival could lodge a low bid on a player it did not want, force the card to be spent, and go home. Making the bidder raise means anybody trying that has to be willing to actually own the player at the higher number.

The logic runs both ways.

For the card holder, a right to match converts the rest of the market's opinion into the price it pays. That is a bargain when the room undervalues a player and a disaster when the room is more enthusiastic than you are. You do not get to set the number. You only get to decide whether to accept it, after your budget has already been shaped by everything you bought earlier in the day.

For everyone else, a card is a target. If you know a rival intends to match, you can bid a player well past your own valuation, drain your rival's purse, and step away. The gambit works right up until the moment the card is not played, and every auction room contains somebody who is still explaining a player he bought for tactical reasons three years ago.

There is a subtler cost, and it is the one that shapes the middle of the day. A franchise holding two cards is holding two decisions it cannot make until late, which means it must hold purse against them. Cards are not free options. They are money you are not allowed to spend yet.

Why a mega auction resets the league and a draft never does

A mini auction is a repair job. It happens in the years between the big resets, squads carry over largely intact, purses are mostly already committed, and the pool is made up of released players, new registrations and whoever went unsold last time. Fifty names might change hands. The league's shape does not.

A mega auction empties almost everything. Every squad goes back on the floor except for the handful of retentions, all ten franchises arrive with a full or near-full purse on the same morning, and the entire playing population of the league is priced again from scratch inside two days.

Nothing in a draft-based sport does this. A draft redistributes at the margin, a few players a year, weighted towards the teams that finished worst. Even a bad NFL or NBA team keeps its roster, it simply gets a better pick. The mega auction is a genuine reset, and it produces effects a draft cannot:

• A well-run franchise can lose its identity in an afternoon by being outbid for four players it had built around.
• A badly-run franchise can rebuild completely in the same afternoon, without waiting three seasons for picks to develop.
• Every squad's age profile, overseas mix and bowling depth is re-decided at once rather than drifting.
• Coaching and scouting departments, not accumulated squad value, become the durable asset. Players are rented, in blocks, on a fixed cycle.

That last point is the real structural consequence. Supporters of a franchise league attach to a shirt, a ground and a colour rather than to a settled group of players, because a settled group is contractually impossible. It is one of the sharper differences between the world's Twenty20 leagues and the club football most of their audience grew up with.

Capped, uncapped and associate: where the value actually sits

A capped player has appeared in senior international cricket for a full member nation, within whatever recency window the regulations define for that cycle. An uncapped player has not, or has fallen outside the window and reverted. Associate players sit in their own category, and franchises treat them differently again.

This classification matters more than any other label in the auction, and it is where the real money is made.

Uncapped players carry the lowest base prices. They are charged at a much lower rate if retained. They are drawn overwhelmingly from domestic competitions that every franchise watches and only some franchises watch properly. Because a domestic season now produces far more usable data than most people realise, the franchises with serious analytics departments are effectively shopping in a market where they can see the stock and their rivals are reading a scorecard. This is the single most valuable application of the data work franchises now do, and it is worth considerably more than anything analytics contributes on match day.

The economics are simple. A team that finds a genuinely quick bowler in a state competition, or a keeper-batter who can strike from ball one, has bought a first-team role at the bottom of the market. Every unit saved there is a unit available for the specialist it cannot find domestically. Do that four times in one auction and you have effectively been handed a larger purse than everybody else.

There is no ceiling on what an uncapped player can fetch once bidding opens. A nineteen-year-old quick that three franchises have independently flagged will not stay cheap for long, and the bidding on those names is often the most violent of the day, precisely because the buyers are certain and the supply is one. What the classification guarantees is a low starting point, not a low finish.

Associate cricketers are a separate opportunity, and an underexploited one. They are usually unfamiliar to the room, they carry the overseas tag, and their numbers come from competitions almost nobody in the auction hall has watched. That combination produces mispricing in both directions, which is another way of saying it rewards whoever did the work.

The accelerated round is where seasons are decided

Once the numbered sets have been worked through, the auction moves into accelerated rounds. Franchises nominate names from the unsold pool and from the lists still outstanding, and those players are brought up in rapid succession, often only a handful of seconds each.

The mechanism exists for a practical reason. The registered pool is far larger than the number of lots any auction has time for, and without a nomination system the day would end with hundreds of names never called and franchises unable to fill their squads. The accelerated round hands the running order to the room.

What it does to behaviour is more interesting than what it does to the schedule.

By that point in the day most purses are nearly spent, most squads are nearly full, and every franchise is shopping for a specific hole rather than for general quality. The bidding thins dramatically. A team that has managed its money well can take a genuinely useful cricketer at close to base price, purely because the three teams that would have fought for him earlier now have nothing left.

It also gives a franchise a second chance at a name it wanted. Going unsold in the main sets is frequently a matter of running order rather than assessment. A middle-order batter called at the exact moment four teams have just spent gets no bid, and he is not worse than the identical player called twenty minutes earlier. A nomination brings him back into a thinner room.

The last-slot problem sits here too. A franchise that still needs three players and has almost no purse must fill the squad, because the minimum is a rule and not a target. It will be buying at base price whether it likes the players or not. Every experienced auction room plans backwards from this: reserve enough to buy the compulsory tail without being embarrassed, and never arrive in the accelerated round needing something specific and expensive.

• Team A (buys early)
• Team B (holds)

After the marquee set55%96%

After the capped sets22%71%

After the uncapped sets9%34%

End of accelerated rounds1%2%

Two constructed strategies, expressed as a percentage of a purse. Team A buys its marquee target early, Team B holds and shops in the thin market. Neither is correct in the abstract and the figures are illustrative rather than drawn from any real auction.

Show the numbers

Invented worked example: purse remaining as the day runs

Item	Team A (buys early)	Team B (holds)
After the marquee set	55%	96%
After the capped sets	22%	71%
After the uncapped sets	9%	34%
End of accelerated rounds	1%	2%

Both teams finish at effectively zero, which is correct, and that is the point of the figure. The difference is not how much they spent but what they were buying at each stage. Team A bought certainty at the most expensive hour. Team B bought volume at the cheapest one. Team B's risk is that the specific player it needed was gone before it started, and no amount of purse fixes that.

Going unsold costs more than the money

Unsold is not a status the auction cares about. The gavel passes, the name leaves the screen, and the room moves on inside four seconds. The player watching it happen experiences something else entirely.

Mechanically, going unsold in the listed sets means only that no franchise bid at the base price at that moment. The player stays in the pool, can be nominated back into an accelerated round, and can also be signed later as a replacement if a squad loses somebody to injury or international duty. Plenty of good cricketers have gone unsold and played that same season.

Reputationally it is much worse than that, and everyone in the sport knows it. An unsold lot is a public statement, broadcast live, that ten professional organisations looked at a player and none of them wanted him at the minimum price. It moves his next base price down. It changes how other leagues value him. For a young player it can be genuinely destabilising, and for an ageing international it is very often the moment the wider market decides he is finished.

The base price choice is where this bites hardest, and it is the one real strategic decision a player gets to make. Register too high and you may price yourself out of the sets where the money is still live, because a franchise weighing you against a similar player at a lower base will simply take the cheaper lot. Register too low and you may be bought early and cheaply by a team that was never going to be your best destination, with no mechanism to decline. Agents spend serious effort on this number, because it is the only lever their client controls.

Bidding tactics that are not madness

Watch enough auction footage and the same manoeuvres recur. Almost none of them are irrational once the constraints are on the table.

The marquee war. Two franchises with the same hole and one player on the floor who genuinely fills it will keep bidding regardless of what either thinks he is worth in the abstract, because the correct price is not his value. It is the gap between him and the next-best option still available. When that gap is large the price runs until somebody is priced out. When four similar players are available, none of them goes for much, and the first one sold is usually the most expensive.

Deliberate inflation. Bidding on a player you do not want, to make a rival pay more, is legal, common and risky. It works because purse is the binding constraint. Forcing a rival to spend an extra chunk on a player he was getting anyway costs you nothing if you step off in time, and costs him a signing later in the day. It fails when the other team steps off instead and you own a cricketer you did not plan for, at a price you set yourself.

Holding purse late. Money in the last hour buys more cricket per unit than money in the first, for the plain reason that fewer bidders are still solvent. The tactic is real and it has a real cost. While you hold, the players you actually wanted are being bought by people who did not. Holding purse is a bet that the market will misprice the late pool, not a bet that patience is a virtue.

The winner's curse, which is structural rather than a character flaw. The auction is close to a common-value auction. Every franchise is bidding on the same underlying thing, a player's contribution across a season, but each holds its own noisy estimate of what that is. The team that wins is disproportionately likely to be the team whose estimate was highest, which is to say the team that was most wrong in the optimistic direction. Sophisticated rooms shade their bids downward to account for it. Rooms that do not, overpay in a predictable and measurable way.

The commercial bid. A marquee signing sells shirts, fills a stadium and dominates coverage for a week. An owner may value that separately from the cricket, and the coach sitting next to him may lose the argument. This is not irrationality, it is a different objective function, and pretending it is absent makes several famous purchases impossible to explain.

The teams that recruit well do not work from a wishlist of names at all. They work from a role map: eleven positions, each with a description of what the home ground and the schedule demand, then three or four candidates per role with a walk-away price attached to each. The price is set in a quiet room days earlier. The discipline of the auction is the discipline of not moving that number when the paddle is in your hand and the room is loud.

42%24%26%

• Retentions, charged before the day42%
• One or two marquee buys24%
• Core eleven, capped and uncapped26%
• Squad depth in the accelerated rounds8%

A constructed allocation as a percentage of a purse, showing a plausible shape rather than any real franchise's spending. Retentions are charged before the auction opens, which is why the largest block is decided weeks in advance.

Show the numbers

Invented worked example: where a purse actually goes

Item	Value
Retentions, charged before the day	42%
One or two marquee buys	24%
Core eleven, capped and uncapped	26%
Squad depth in the accelerated rounds	8%

The eleventh overseas player is worth almost nothing

No more than four overseas players may take the field in the playing eleven. A franchise may contract more, and every franchise does, but the marginal value of each additional one collapses fast.

This reprices the entire global market. The seventh-best overseas batter in the world is worth less to an IPL franchise than a good domestic seamer, because the seamer plays every week and the batter is competing for one of four slots against players already on the books. Franchises therefore do not buy the best available overseas cricketers, which is what an outsider expects them to do. They buy overseas cricketers who do something no Indian player in the pool can do: genuine pace, wrist spin, a proven death-overs skill, an opener who can attack the new ball at a rate the domestic market does not supply.

Availability compounds it. Overseas players miss matches for international duty, and a franchise that spends heavily on one and loses him for the second half of the season has burned a slot as well as the money. The standard hedge is to buy two players for the same overseas role at wildly different prices, so the slot is still covered when the expensive one is away.

Anyone who has tried to build a hypothetical playing eleven from a franchise squad discovers the constraint inside a minute. The overseas four are the tightest budget in cricket, and they are the reason a squad sheet full of famous names is not the same thing as a good team.

The corollary is a rule of thumb worth carrying into any auction broadcast. Judge an overseas purchase by which of the four slots it is buying and by who it displaces. If the answer is "nobody, he is cover", the price should be small. Where it is not small, somebody has bought a name rather than a role.

What the impact player rule did to the shopping list

The impact player rule lets a team introduce a substitute during the match, at defined points in an innings and inside limits the BCCI publishes in each season's playing conditions. One such substitute per team per match, named from a short list submitted with the teamsheet, and the overseas restriction follows the substitute onto the field rather than being suspended for him.

What it changed is the shape of a squad, and therefore the shape of a bid.

Before it, an eleven had to balance itself. A team needed all-rounders because it needed batting depth and bowling options out of the same bodies, and a pure specialist who could only do one thing was a luxury. The substitution rule loosens that. A side can effectively field a batter more when batting and a bowler more when bowling, which means the premium on the honest all-rounder falls and the premium on the genuine specialist rises.

That is a real repricing and it shows up in what franchises chase. A batter who can bowl two tidy overs was worth a great deal in a world where the eleven had to cover everything. In a world with a substitution, two tidy overs are worth less than a sixth bowler who is actually good. The counter-argument, made loudly and not without merit, is that the rule quietly reduces the number of young Indian all-rounders who bother developing the second skill at all, because nobody is paying for it any more.

It also raises the value of squad depth in general. A team that must name substitutes has more roles to fill and more players who might actually be used, which pushes demand into exactly the part of the auction where prices are lowest. The accelerated round matters more now than it did before the rule existed.

The same tension shows up across the format's other rules. How fielding restrictions are set decides which batters are worth a premium in the first six overs, and a substitution rule changes who a team can afford to expose there.

What the IPL auction does to the players

Talking about mechanism design is comfortable. It is worth being clear about what the mechanism does to the people standing on the other side of it.

The distribution is brutally skewed. A small number of players take a very large share of the money and a long tail sits at or near base price. That is a property of any auction with a hard budget and one indivisible unit per lot. Buyers concentrate spending on the few names they believe are genuinely scarce, then economise on everything else. The tail is not badly paid in absolute terms, particularly against domestic cricket wages, but the gap between the top of a squad and the bottom of it is far wider than in a league with a negotiated wage structure.

The contracts are short. Squads are assembled for a season and the whole thing is re-decided at the next mega auction. There is no long development contract, no restricted free agency, no accumulated seniority worth anything at the table. A player's leverage is almost entirely his last twelve months of form, which is why a single good season can be worth more than a decade of consistency and why an injury year is financially catastrophic in a way it would not be under a guaranteed multi-year deal.

The money arrives in seconds. A career-altering sum is settled in about ninety seconds of bidding, in public, with the player's family very often watching a live broadcast. There is no negotiation, no choice of destination and no right to decline. A player nominates a base price and then learns where he is going at the same moment as the audience does.

That last point is the genuine cost of the system and the one most commentary skates over. The auction gives players something real, which is open competitive price discovery instead of a draft order or a club's discretion. It takes away something real in exchange, which is any say at all in where they work. The trade is excellent for the players in demand and much less good for everyone else.

It also pushes development costs back onto domestic systems and national academies, since franchises are renting rather than raising. That is a real cost to the wider game, and the leagues that have grown fastest are the ones that found ways to make keeping uncapped talent cheap.

1. 1The set is calledThe auctioneer announces the set, the player's name, his role, his capped status and his base price. Franchises have known the running order for days and have already fixed their walk-away number.
2. 2The first paddle goes upAny franchise may open at the base price. If nobody does within a few seconds the player is declared unsold and stays in the pool for the accelerated rounds.
3. 3Bids climb in fixed incrementsThe increment rises with the price, so the pace accelerates rather than slows as the number gets large. Every raise is deducted from the bidder's live purse the instant it wins.
4. 4Two teams are leftPrice is now being set by the gap between this player and the next-best option still on the floor, not by his worth in the abstract. One team reaches its walk-away number and stops, or does not.
5. 5The gavel fallsThe highest bid becomes the player's salary for the season and comes straight off the winning purse. Where no card is in play, that is the end of it and the room moves on.
6. 6A right to match is offeredWhere a former franchise holds a card, the leading bidder is invited to raise once more, and only then may the card be played. If it is, the player returns to his old team at the final number.

The sequence a single player goes through. The last step only exists where his previous franchise still holds a card, which is why a right to match changes how the earlier bidding is conducted.

How to watch an IPL auction and know who is winning

The scoreboard on the broadcast tells you who spent. It does not tell you who is winning. Four things do, and all four are on screen if you know where to look.

Purse remaining against slots remaining. This is the only ratio that matters and almost nobody quotes it. A franchise with a quarter of its purse and two slots to fill is in a commanding position. A franchise with a quarter of its purse and nine slots to fill is about to buy nine players at base price whether it wants them or not. Divide one by the other every hour and you will be ahead of the commentary.

Overseas slots, counted separately. A team that has filled its four match-day overseas roles with genuine first choices is done with the expensive part of the market and can spend the rest on Indian depth, which is the cheaper and more useful pool. A team still hunting an overseas death bowler in the accelerated round is in trouble, because that is precisely the skill the thin market does not contain.

Which cards are still live. Every unplayed right to match is money the holder is not free to spend and a threat every rival has to price around. When a card is finally used or expires, watch the bidding change on the next three lots.

Whether the role map is being filled or abandoned. By the middle of the second session you can usually see whether a franchise is buying to a plan or reacting to one. Three seamers of the same type is reacting. A wicketkeeper bought at base price in the ninth hour because the two they wanted went early is reacting. A squad that ends the day covering every role twice, with the second cover cheap, was planned.

Apply those four and the day reads completely differently. The screaming numbers in the marquee set are the least informative part of the auction, because that is the hour when every franchise is solvent and information is at its lowest. The hour that decides the season is the quiet one at the end, when the purses are nearly gone and the teams that thought hardest about the constraints are calmly buying the players nobody else can afford.

If you want to test any of this against the cricket itself, the useful follow-up is not the price list. It is what those players are actually being paid for, and the trade-off between scoring quickly and scoring reliably is the question a franchise is trying to answer with every bid it makes. Squad-by-squad detail sits in the league's own section, and the rest of this sort of thing lives in the cricket archive.