You captain the fielding side for the last five overs of a real T20 run chase. At the start of each over, choose who bowls it. Then, ball by ball, set your field and choose the delivery.

• Every bowler is limited to four overs and nobody bowls two overs in a row. No more than five fielders can be outside the circle, and no more than two behind square on the leg side. Seasons from 2024 allow two bouncers an over; earlier seasons allow one.
• Each ball is drawn from real ball-by-ball data: your bowler's record at the death, the batter's record at the death, and how chases go at that score, over and required rate.
• Deliveries trade reward for risk. A yorker that lands is the hardest ball to score off, but an average bowler lands one about a third of the time, and a miss is a full toss or a half-volley. A good length is cheaper than average and takes wickets, but a miss is too short or too full. Wide yorkers and bouncers can be called wide. Spinners have their own menu: stock ball, flighted, quicker, wide of off and their variation. The best death bowlers land their plans more often. How a wicket falls follows each bowler's real record. You pick the delivery every ball.
• Each delivery tends to be hit to different parts of the ground. Put fielders where the ball is likely to go: a deep fielder can turn a four into a single, a fielder in the ring stops a single, and an empty area lets the ball through.
• Each ball is graded on win chance against every delivery you could have bowled, with your field and with the standard fields. Each bowler choice is graded against every bowler you could have picked. Green is the best call, or so close to it that the difference is within the simulation's margin. For a bowler, yellow is within two points of win chance, orange two to five and red more than five. A single ball moves the chase less, so its bands are tighter: yellow within one point, orange one to two and a half, red more than that. There's no autopilot: you pick the delivery every ball. Batters have real weaknesses, and a field that doesn't suit the ball leaves gaps. Tap-by-tap reasons explain any grade that isn't green. You're graded on the decision, not the luck.
• Line, length, shot direction and fielding positions aren't in the public ball-by-ball data, so delivery and field effects are a model on top of it, built so a bowler's usual mix of deliveries to the standard field reproduces the real data.
• Matchups are real: each batter's record against right-arm and left-arm pace and spin, how he gets out and how often he hits sixes all come from the ball-by-ball data. Left-handers and left-arm bowlers are shown the right way round.

One new chase every day, the same for everyone. Classics replays famous finishes. Practice deals a random chase from real T20 league seasons, 2008–2026.