Spin in the T20 powerplay: why sides open with a spinner

The field is set, the umpire calls play, and the bowler walking back to his mark has no run-up worth the name. Three paces, a turn, and the first delivery of the match arrives at a little over half the speed the opener has spent the previous fortnight preparing for.

Spin in the powerplay in T20 stopped being an ambush some years ago and became an ordinary line in a plan. The reason is short enough to state in one breath. A cricket ball is at its hardest in the first over it is used, and hardness is exactly what lets a spinner take grip and bounce out of a surface that will hand him almost nothing an hour later. The batter opposite has set his footwork for a fast bowler and cannot reset it in two deliveries. And the fielding restriction that makes the first six overs dangerous for everyone happens to penalise the one variety of spinner no captain would have opened with anyway, the bowler whose entire method is denying room rather than beating the bat.

The fuller answer is a matchup argument, and it is worth stating plainly because it is the part most viewers skip. Sides do not open with spin because spin is good early in the abstract. They open with spin when they have decided that one particular opener cannot handle one particular direction of turn, and when the surface, the boundary lengths and the time of day make being wrong about that survivable. What follows works through the whole mechanism: what the new ball hands a spinner, what two fielders outside the circle take away from him, which family of spin belongs in the first six overs and which does not, and what a well-drilled batting pair does to make the idea rebound on the captain who tried it.

• 6Overs in a T20 powerplay
• 2Fielders permitted outside the circle
• 30Radius of the circle, in yards
• 4Overs any one bowler may bowl

Structural features of a Twenty20 innings, not match figures.

Why a hard ball turns and a soft one does not

The argument starts with the object rather than the bowler, and the physics of it is not disputed by anybody who has held both.

A new ball is dense, tightly wound and covered in lacquer, and it barely deforms when it lands. The contact patch where leather meets pitch is small, the force pressed through that patch is high, and the friction available to convert spin into sideways movement is correspondingly large. An old ball is a different object. The core has been compressed by a few hundred impacts, the leather has gone soft, and the ball flattens slightly as it pitches. That flattening spreads the load, absorbs energy, and leaves the ball skidding on rather than gripping and deviating.

Bounce follows the same rule and matters more in a twenty-over innings than turn does. A hard ball rebounds off the surface with more of its energy intact, so it climbs. A spinner who can make the ball bounce above the height the batter expected produces the top edge, the leading edge and the toe-end drive, and all three of those go up rather than along. In a phase where seven fielders are standing inside the circle by law, up is the direction the bowling side wants. The ball that turns a foot and stays low is a ball a batter can hit through the line; the ball that turns half as much and jumps is the one that takes the outside half of the blade.

The seam does its own work. On a new ball the seam stands proud, and a finger spinner who lands on it gets a bite the same delivery would not get off the smooth quarter of an old ball. A wrist spinner who angles that upright seam and holds it there through the flight gets drift, the late sideways drag through the air that makes a leg break look as though it has changed its mind. Both effects fade as the seam is scuffed flat, which is why a spinner's most dangerous over with a given ball is frequently his first.

There is a cost written into the same fact, and honest analysis has to state it. A hard ball comes off the bat harder. Everything that helps the spinner grip also helps the batter who middles one, and it helps him a great deal, because the mistimed shot that dies at the edge of the circle in the fourteenth over carries over the rope in the second. The new ball does not favour one side. It raises the stakes for both and lets the better plan collect.

The batter's clock is set for something else

The second reason is not about the ball at all. It is about the man facing it, and specifically about the pre-ball movement he has drilled thousands of times.

An opener who expects pace loads a trigger before release: a small movement back and across the stumps, timed to be complete as the bowler's arm comes over. That movement exists because a delivery at pace gives him roughly four tenths of a second between release and impact, and he cannot afford to begin moving after he has seen the ball. The trigger buys him the time to play late.

Aim a slow bowler at that trigger and the same movement becomes a trap. The batter has already gone back and across when the ball is still travelling, and he is now on the crease with his weight settled, playing a delivery that is asking to be met at the pitch or driven off the front foot. He is a fraction of a second early on everything, which sounds harmless and is not: early against spin means playing at where the ball was, and against a delivery that deviates after pitching, playing at where the ball was is how a leading edge happens.

The refinement that makes captains bother with the idea is that a batter can retrain the trigger, but not in two deliveries. He walks out having faced throwdowns at pace in the warm-up, having watched the opposition's fast bowlers mark their runs, and having settled his mind on a first-over plan built around a ball that skids. A spinner in over one denies him the sighters he expected against the bowling he expected. Nobody claims this lasts. It lasts about six balls, which is precisely the number the captain is trying to buy.

What two fielders outside the circle actually cost

Now the other side of the ledger, because the same restriction that gives the bowling side its catchers takes away the thing a spinner normally lives on.

Through the first six overs only two fielders may stand beyond the thirty-yard circle. A captain who has put a spinner on must therefore choose two arcs of the boundary to defend and concede the rest. Against an off-spinner bowling to a right-hander he will usually protect long-on and deep midwicket, because that is where the shot with the turn goes. That leaves the entire off side beyond the circle unattended, so a batter who can hit inside-out over extra cover, or who can cut a ball that is short and wide, is being invited to do it. Reverse the direction of turn and the exposed sector reverses with it.

The mistakes a spinner makes are directional, which is why this is worse than it sounds. A finger spinner who drops short does so with a ball that sits up outside off or drifts down the leg side, and both of those go square, into the two quadrants he has usually left open. A wrist spinner who loses his length produces a long hop that can be dispatched anywhere, but most often square on the leg side, since that is the easiest place for a batter to send a short ball he was not expecting. Two men out cannot cover both square boundaries and the straight ones. Somebody is going to be able to hit a four without hitting the ball especially well.

What the restriction gives back is a ring of fielders standing where the errors that are not clean go. Short cover, short midwicket, a man in front of square on the leg side and a boundary rider are all live catching options in a phase where the ball is being hit hard but not always along the ground. A skied slog-sweep in over four has a fielder underneath it. The same shot in over twelve drops in the middle distance for two. The trade is legible: the spinner loses control of the boundary and gains a genuine chance of a wicket every over, which is the trade a captain making a matchup bet is happy to take. If the labels for these positions are not automatic, the guide to where every fielding position sits and what it is for sets the map out properly, and the piece on the T20 fielding restriction and the two games it creates covers the phase split in full.

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• Fielders inside the circle7
• Fielders outside the circle2
• Bowler and wicketkeeper2

The composition the restriction forces on a fielding captain during a T20 powerplay.

Show the numbers

Where the eleven stand in the first six overs

Item	Value
Fielders inside the circle	7
Fielders outside the circle	2
Bowler and wicketkeeper	2

The matchup: which way the ball leaves the bat

Strip everything else away and the decision to open with spin usually reduces to one question. Does the ball go away from this opener, or into him?

A ball spinning away from the bat asks the batter to reach for it, and it is the only delivery in the phase that produces the outside edge, the stumping and the catch behind square on the off side. An off-spinner to a left-hander does this. So does a leg-spinner to a right-hander, and left-arm orthodox to a right-hander, and left-arm wrist spin to a left-hander. In each of those pairings the batter's strongest scoring area, straight and through midwicket, has been taken away from him, and the shot he must play instead is a shot into the field the captain has already loaded.

A ball spinning into the batter is a different proposition entirely, and mostly a worse one to open with. It arrives on the pads, it can be worked square with the turn, and the batter does not have to reach for anything. A captain who opens with a spinner into the pads of an opener with a functioning sweep is not making a plan, he is donating overs. The whole idea only holds when the geometry runs the right way, which is why so many powerplay spin overs are bowled at the moment a particular left-hander or right-hander is on strike and are stopped the instant the pair rotates.

The second layer of the matchup is what each opener does with a slow ball he is comfortable against. Some batters are dangerous down the ground and only that. Others live square. The two men outside the circle are chosen from a scouting note that says which, and the whole plan collapses if the note is wrong or out of date. This is the part of the game where the analyst's file is doing real work rather than decorating a press release, and the way that file is assembled is set out in the piece on how cricket teams actually use their data.

Wrist spin in the first six overs

Wrist spin and finger spin behave differently enough in this phase that they deserve separate treatment, and the difference is not simply that one turns more.

A wrist spinner imparts more revolutions and gets more out of a new ball than anybody else, because dip and drift both scale with revolutions and both are strongest when the seam is upright and sharp. The delivery that dips on an opener trying to hit through the line is the single best wicket ball available in the powerplay, since the batter has committed to a length that the ball then refuses to reach. Add the wrong one that comes out of the back of the hand, which reverses the direction of turn without changing the arm, and a captain has a bowler who can produce the away-turning ball against a right-hander and the away-turning ball against a left-hander in the same over.

The price is variance. Wrist spin is the least repeatable action in the game, and a bowler who is a fraction off releases the long hop that the two-man boundary cannot cover. The delivery that beats the bat and the delivery that disappears over square leg come out of the same hand in the same over, which is why wrist spin in the powerplay is generally used in single-over bursts. The captain buys one over of high-variance wicket-hunting, then removes the bowler before the arithmetic catches up, and keeps his remaining overs for the middle.

Finger spin in the first six overs, and the two kinds of it

Finger spin splits into two jobs that share a name and have very little else in common.

The first is the quicker, flatter operator who bowls into the pitch, uses the hard ball's bounce rather than its sideways deviation, and aims to hit the top of off stump. In the powerplay this is a genuinely awkward proposition, because a batter cannot get under a ball delivered at that trajectory and cannot easily get to the pitch of it either. The bowler is not really asking the surface for turn. He is asking it for bounce and for a length the batter cannot access, and a hard ball supplies both.

The second is the flighted, looping bowler who invites the drive and beats it in the air. That bowler is superb in the middle overs and struggles badly in the first six, because flight without a protected boundary is a gift to anybody willing to charge. His method presumes that the batter's error costs him a catch to a deep fielder, and there is no deep fielder to catch it.

This is the distinction that explains why the phase has room for some spinners and none at all for others, and it maps cleanly onto the families set out in the guide to the different varieties of spin bowling and what each one does to the ball. The powerplay does not reward the spinner who is hardest to score off in general. It rewards the one who is hardest to score off when the fielding side has no outfield, which is a narrower and much less common skill.

1. 1Read the opening pairEstablish which opener bats with which hand and which of the two is the weaker player of a ball turning away. The plan exists for one of them, not for both.
2. 2Check the surface and the skyA dry, gripping pitch in daylight supports the plan. A damp outfield, an evening start or heavy dew forecast argues for pace instead, because a wet ball spins very little.
3. 3Choose the endThe spinner is given the end with the longer boundary on the side the batter hits with the turn, and the seamer takes the other. Ground dimensions are rarely symmetrical.
4. 4Set the ring before the ropeSeven fielders are placed to catch the mishit and cut off the single that rotates strike. Only then are the two permitted boundary riders positioned in the arcs the matchup predicts.
5. 5Bowl to the plan, not the scoreThe over is judged on whether the intended batter faced it and played it badly, not on the runs conceded. One boundary off a beaten edge does not falsify the plan.
6. 6Decide the exit in advanceThe captain fixes beforehand whether this is one over or two, and what the trigger is for stopping. A wet ball, a rotated strike or a clean boundary down the ground all end the experiment.

The sequence of judgements behind the decision, in the order they are usually made.

Who actually bowls the first over, and why it is often not the frontline spinner

There is a distinction between opening with spin and opening with your best spinner, and captains take it seriously.

The first over of an innings is also the batter's first over, and the batting side will usually settle for whatever it can get from it. That makes over one a comparatively cheap place to hide an over from a part-timer or a second spinner whose only job is to be the wrong hand for the opener on strike. It is a low-cost way of taking the matchup while keeping the frontline bowler's four overs intact for later.

There is a second reason, and it concerns ends rather than bowlers. A captain who opens with spin at one end has still got a new ball at the other, and he will almost always keep his quickest bowler there. Attacking a batting pair from two directions at two speeds is harder to play than either alone, and it means the batting side cannot simply write the powerplay off as a spin problem. The pair that has decided to see off the spinner and attack the seamer discovers that seeing off the spinner means facing more of the seamer.

The third reason is protective. A spinner who is taken apart in over one has ruined a plan; a spinner who is taken apart in over one and then has to bowl three more because he is the frontline option has ruined an innings.

Four overs, and where the captain spends them

The genuine cost of powerplay spin does not usually appear in the powerplay. It appears in over thirteen.

Every bowler in a Twenty20 innings may bowl four overs and no more. A captain who uses two of his best spinner's four in the first six has two left for the fourteen overs that follow, and those fourteen contain the phase in which a spinner is at his most protected, with five fielders permitted on the rope and a field that can be set for a specific shot. Bowling spin early is therefore not free even when it works. It converts overs from a phase where the bowler is safe into a phase where he is exposed, and it does so on the strength of a matchup that may last four deliveries.

Good captains treat this as a budget rather than a hunch. They decide before the toss how many of the spinner's overs the powerplay is allowed to consume, and they hold to it, because the alternative is arriving at the fifteenth over with a spinner who is finished and a middle order that has been left to the fourth seamer. That trade sits inside the wider question of how any bowler's overs are apportioned across the innings, which the survey of powerplay rules and the phases they create in each format sets in context.

The first six overs as reconnaissance

A slightly different use of the same tactic is worth separating out, because it is the one commentators most often misread as desperation.

A captain who has lost the toss, been asked to field, and has no idea what the pitch will do sometimes bowls a spinner in over three purely for information. Whether the ball grips, how much it bounces, and whether the batter is able to get down the wicket to it are three answers he cannot get from watching a seamer, and he would rather have them before the chase than after it. One over costs him very little and tells his side whether the target they are about to defend or pursue is a spinning-pitch total or a batting one.

The information decays, of course, and in one specific direction. A surface that grips at six in the evening may not grip at nine, because dew changes both the ball and the top of the pitch. That is a well-understood asymmetry rather than a mystery, and the way a dry surface's behaviour develops through a day and across a match is set out in the piece on what a turning pitch is actually doing underneath the grass.

How a batting side counters spin in the powerplay

Batting sides have had years to work on this, and their answer is more disciplined than the highlight reel suggests. The most effective counter is not a shot at all.

Refuse the matchup. The spinner has been brought on for one of the two batters. Taking a single off the first or second ball of the over hands the strike to the other one, and the captain's plan is now being executed against the wrong man. This is the single reason so many sides deliberately open with a left-hander and a right-hander: it makes strike rotation into a tactical weapon rather than merely a scoreboard habit. Two batters of the same hand can be attacked all over by the same bowler; a mixed pair cannot. The wider case for pairing openers this way is made in the piece on what an opening partnership is actually for.

Attack the other end instead. A batting pair that scores at pace off the seamer and merely rotates against the spinner will finish the powerplay ahead, because the fielding side has spent overs on a plan that produced neither wickets nor pressure. Being able to tell which bowler to hit is worth more in this phase than being able to hit any of them.

Use the depth of the crease. Standing marginally deeper converts a good length into a shorter one and gives the batter the extra fraction of a second the spin was designed to steal. It also opens the cut and the pull, which are the two shots that punish a spinner who has misjudged his pace on a hard ball.

Sweep towards the vacancy. With only two fielders out, one square boundary is always open, and the sweep and reverse sweep are the shots that reach it without needing the batter to hit through the line of a turning ball. A batter who sweeps well makes the entire matchup argument shakier, because he removes the direction of turn from the equation and plays across it.

Hit with the spin, not against it. Going with the turn towards the shorter square boundary is a lower-risk shot than driving against it, and it exploits the one asymmetry no captain can fix: grounds are not round, and the two permitted boundary riders cannot both stand on the short side.

Take the singles that are actually there. Seven fielders inside the circle look like a wall and are not one, because they are set to save the boundary as much as the single. A pair that runs hard turns a maiden into four or five off the over, and an over that goes for five is a failed spin over even if it looks tidy.

Dew, boundary sizes and the version of the decision nobody discusses

Two external variables decide whether the plan is even on the table, and both are settled before the first ball.

Dew is the larger one. A wet ball will not grip in the fingers, will not grip on the surface, and skids on to the bat with no deviation at all. In a night match at a venue where dew arrives early, opening with spin in the second innings is close to unplayable as a plan, and captains know it. This is one of the quieter reasons the same fielding side will happily bowl a spinner in the first over of an afternoon game and not consider it after dark at the same ground.

Boundary dimensions are the other. Cricket grounds are asymmetric, sometimes severely, and a spinner bowling to a batter whose scoring arc points at a fifty-eight metre rope is in a different match from the same bowler with seventy metres in the same direction. A captain choosing which end to give his spinner is choosing which of his two boundary riders has the harder job, and on a small square with long straight boundaries the answer is often to bowl spin and dare the batter to go straight.

What the plan does to selection

The tactic has changed who gets picked, which is usually the sign that something has moved from novelty to structure.

A spinner who can bowl in the powerplay is doing a job that used to belong exclusively to a third seamer, and he is doing it while also being available in the middle. That flexibility is worth a squad place on its own, and sides now assess spinners on whether they can bowl at both the top and the death rather than on middle-overs economy alone. The left-arm orthodox bowler has benefited most obviously, because the away-turning angle to a right-handed opener is exactly the shape the phase rewards and there are a great many right-handed openers.

The knock-on is that a side with two such bowlers can open with spin from both ends against a same-handed pair, which was a curiosity a decade ago and is now an ordinary line in a bowling plan. It also raises the value of a batter who can bowl a tidy over of spin, since the powerplay matchup over is the cheapest place in the innings to use one. The way a side prices that kind of double utility is worked through in the piece on what an all-rounder is actually worth to a team.

What to watch in the first six overs

The plan is visible from the stand before the ball is bowled, and it is more legible than most tactics in cricket.

Look at the two fielders outside the circle first, not the bowler. Their positions tell you which shot the captain has decided the batter will play and which boundary he has written off. If both are on the leg side against a right-hander, the bowling side expects the ball to turn in and has accepted that anything through the off side is a gift.

Watch whether the spinner is bowling to the batter who is on strike or waiting for him. A captain who sets a field, sees the strike rotate and immediately signals to his bowler is telling you the whole thing was aimed at one man.

Count the dot balls rather than the runs. A spin over in the powerplay that concedes seven with five dots has done its job. One that concedes six in singles has failed, because the pressure the plan was buying never arrived and two of the bowler's four overs are now gone.

And watch the batting pair's feet. An opener who has begun standing a fraction deeper in his crease, or who has started walking at the bowler, has recognised the plan and adjusted. The next over will tell you whether the captain has an answer to the adjustment, and the answer to that adjustment is usually the point at which the spinner is taken off.

More tactical breakdowns of the short format, the bowling plans behind them and the rules that shape them sit in the cricket section, and the full run of explainers across every sport is in the blog archive.