Impact Player Rule — IPL's Tactical Substitution Explained
The Impact Player rule in the IPL allows teams to make a mid-match tactical substitution. Learn how it works, when it can be used, and how it has changed squad selection and T20 strategy.
The Impact Player rule, introduced in the IPL from the 2023 season, allows each team to substitute one player mid-match — bringing in an 'impact player' from four named substitutes after a team's innings has started. The substituted player must leave the game entirely; the impact player can bat, bowl a full quota, or field, depending on when they enter.
When Can the Impact Player be Used?
- Batting team: At the fall of any wicket or at the innings break.
- Fielding team: At the start of any over while fielding.
- The impact player cannot replace a player who has already batted or bowled.
- Four names are submitted in advance; one is chosen as the actual impact player during the match.
Strategic Implications
The rule fundamentally changed IPL squad selection. Teams can play an extra batter in conditions that suit batting, knowing they can bring in a fifth bowler if needed during the match. Conversely, teams can start with five bowlers and bring in a specialist batter when chasing. The impact player has also increased the value of all-rounders — teams whose impact player is an all-rounder get maximum flexibility.
Frequently asked questions
What is the Impact Player rule in the IPL?
A mid-match substitution rule where each team can replace one player with a named impact player from a four-player substitutes list. The impact player can bat or bowl a full quota of overs.
When can an IPL team use their Impact Player?
The batting team can use their impact player at the fall of a wicket or at the innings break. The fielding team can use theirs at the start of any over.
Does any other T20 competition use the Impact Player rule?
As of 2026, the Impact Player rule is unique to the IPL. Other major T20 competitions (The Hundred, BBL, CPL, SA20) have not adopted the rule.