The Impact Player Rule, Explained in Five Minutes

Cricket traditionally allows substitutes only for fielding. From the 2023 season, the IPL changed that with the Impact Player rule, a tactical substitution that lets a team replace one player during the match with someone who can bat and bowl in full.

The rule had already been tested in India's domestic T20 competition, the Syed Mushtaq Ali Trophy. It has since become one of the defining features of the modern IPL, and the league has kept it in place through the 2027 season.

How it works, step by step

1. At the toss, each captain names a playing XI and up to five substitutes. Teams can hand in two different team sheets and choose which one to use after they know whether they are batting or bowling first.
2. During the match, one of those five can come on as the Impact Player, replacing any member of the XI.
3. The swap can happen before an innings starts, at the end of an over, when a wicket falls, or when a batter retires.
4. The player who is replaced takes no further part, not even as a substitute fielder.

The overseas catch

The four-overseas limit still applies. If a team's starting XI already has four overseas players, its Impact Player must be Indian. A team can only bring in an overseas substitute if it started with fewer than four, which is why many sides now begin with three overseas players and keep a fourth in reserve.

What counts, and what doesn't

• A team can still only have 11 batters bat in an innings.
• An Impact Player brought on to bowl can bowl their full four overs, even if the player they replaced had already bowled.
• Using the Impact Player is optional, but almost every team uses it in almost every match.

The most common way teams use it

The typical pattern is simple. A team batting first starts with an extra batter. When their innings ends, that batter is swapped for a specialist bowler. A team chasing does the reverse. In effect, sides bat deep and bowl deep, and nobody has to carry a weak link.

Batters play with more freedom when there's always another hitter waiting in the dugout.

The effect on scores

The results have been dramatic. Totals above 200 went from rare to routine, and 2024 brought three scores above 270 within a few weeks, led by Sunrisers Hyderabad's 287 for 3 against RCB, still the highest total in IPL history. Punjab Kings chased down 262 against Kolkata the same season, the highest successful chase the league has seen.

Extra batting depth is not the only reason. Flat pitches, fearless young batters and data-driven tactics also play a part. But the Impact Player is a big one: batting first, a team no longer has to worry about keeping wickets in hand for a weaker lower order.

The debate

Not everyone is a fan. Critics, including several senior India players, argue that the rule squeezes out the genuine all-rounder. If you can pick a specialist batter and a specialist bowler, why pick one player who does both reasonably well? Others say it tilts the game too far towards batters.

Supporters say the rule gives more players a game, keeps matches alive until the last over, and adds a layer of strategy. For now the IPL has sided with them, and the rule stays.

In one line: name five subs at the toss, bring one on during the match, and the player they replace is done for the day.