T20 cricket is the shortest and fastest international format and the easiest to follow once you know a few core rules. Each team bats for a maximum of 20 overs, every ball matters, and matches usually finish in about three hours.

This guide explains the format from the toss to the final ball, including the rules that confuse beginners most: powerplays, free hits, no-balls, wides, and what happens when scores are tied or rain arrives.

The Basic Format: 20 Overs Each

A T20 match has two innings, one per team, with a maximum of 20 overs each. An over is six legal balls, so a full innings is 120 legal balls, unless a team is bowled out earlier.

The team that scores more runs wins. If the team batting second passes the first team's total, it wins immediately. If it is bowled out or fails to reach the target in 20 overs, the team batting first wins by runs.

Before the match, the captains meet for the toss. The winner chooses whether to bat or bowl first, based on pitch, weather, dew, and team strengths. In day-night matches, captains often prefer to chase because dew can make bowling harder second.

Batting Rules: Who Bats, and in What Order?

Each team names eleven players and usually bats in a set order, though captains can change it during a match. Openers start, followed by the middle order, then the lower order of bowlers and all-rounders.

A batter is out when bowled, caught, run out, stumped, leg before wicket, hit wicket, or dismissed in rarer ways such as obstructing the field. Once out, they cannot bat again in that innings.

Batters score by running between wickets, hitting fours, which cross the boundary on the ground, and sixes, which clear it without bouncing, plus extras such as wides and no-balls.

Retired hurt is a special case: an injured batter may retire hurt and, in many competitions, return later if they recover. A batter who retires for tactical reasons is usually treated as out in T20 competitions, though exact rules vary by tournament.

Bowling Rules: Overs, Bowlers and Field Restrictions

No bowler can bowl more than four overs in a T20 innings. This forces captains to use at least five bowlers and is why T20 teams value all-rounders and part-time bowlers so highly.

The powerplay covers the first six overs. During it, only two fielders are allowed outside the 30-yard circle, a marked ring around the pitch. This helps batters score quickly early on, because large gaps are left in the outfield.

After the powerplay, from overs seven to 20, a maximum of five fielders are allowed outside the circle. Captains use this phase to set attacking or defensive fields depending on the match situation, batter, and bowler.

No more than two fielders can be behind square on the leg side at any time, and no fielder can be in certain restricted positions at delivery that would be unfair or dangerous.

Wides, No-Balls and Free Hits

A wide is a delivery too far from the batter to be hit with a normal shot. It costs one run, does not count towards the over, and must be bowled again. In T20, wides are called more strictly than in longer formats.

A no-ball is an illegal delivery. The most common reason is overstepping, when the front foot lands beyond the popping crease. Other reasons include a full delivery above waist height, a ball bouncing too high,  cricbet99 or too many fielders outside the circle in a restricted phase.

A no-ball costs one run, does not count towards the over, and is followed by a free hit. On a free hit, the batter cannot be bowled, caught, leg before wicket, or stumped but can still be run out. The field cannot change for a free hit unless batters change ends on the no-ball itself.

Short-Pitched Bowling and Safety Rules

In T20 internationals, a bowler can bowl at most one fast, short-pitched delivery per over above shoulder height of the batter standing upright. A second such delivery is a no-ball, followed by a warning procedure.

A delivery above head height is also a no-ball and can also be wide if it prevents a normal shot. Umpires can act on dangerous bowling even when these limits are not crossed.

These rules exist for safety, and shape tactics too. A bowler who has used their one short ball must find another way to trouble the batter, which is why slower balls, yorkers, and changes of pace matter so much in T20.

What Happens When Scores Are Tied? The Super Over

If both teams finish level, and the match is not a league game allowing a shared result, a Super Over decides it. Each team bats for one over, and the team scoring more wins.

Each team nominates three batters and can use up to two wickets; losing two ends its Super Over innings. The team that batted second in the main match bats first in the Super Over, unless tournament rules say otherwise.

If the Super Over is also tied, many tournaments now play further Super Over until a winner is found. This replaced the boundary countback used after the tied Super Over in the 2019 World Cup final.

Rain, Shortened Matches and Revised Targets

Rain can shorten a T20 match. For a completed T20 international, each team must have had the chance to bat for at least five overs, unless bowled out earlier. If rain prevents that minimum, the match is usually a no-result.

If rain interrupts after both teams have batted for at least five overs, but the second innings cannot be completed, the target is revised using the Duckworth-Lewis-Stern method, DLS, which adjusts for overs remaining, wickets lost, and resources available.

DLS is not a simple run-rate calculation. It recognises wickets in hand as a resource, like overs remaining, so a team that has lost few wickets faces a higher revised target than one that has lost many, from the same score at the same stage.

League Variations: Impact Players, Timeouts and Reviews

International T20 rules are the base, but leagues add variations. The Indian Premier League, for example, allows an impact player substitution, replacing one player during the match, and includes strategic timeouts and short breaks for teams to regroup.

Other leagues may differ on reviews, Super Overs in league games, or points for tied matches. In a league stage, a tied match without a Super Over may share points, while a knockout almost always uses a Super Over.

The Decision Review System, DRS, is available in many T20 matches, though not all. Each team usually gets a limited number of unsuccessful reviews per innings to challenge decisions such as leg before wicket or caught behind. A successful review is kept; an unsuccessful one is lost.

Frequently Asked Questions

How many overs are there in a T20 match?

Each team bats for a maximum of 20 overs, so a full match has a maximum of 40 overs, plus any Super Over if scores are tied.

What is the powerplay in T20 cricket?

The first six overs of an innings, during which only two fielders are allowed outside the 30-yard circle. This helps batters score quickly at the start.

What is a free hit?

A delivery after a no-ball on which the batter cannot be dismissed by being bowled, caught, leg before wicket, or stumped. They can still be run out.

How many overs can one bowler bowl in T20?

A maximum of four overs per bowler in a 20-over innings, which means at least five bowlers must be used.

What happens if a T20 match is tied?

In most knockout and bilateral matches, a Super Over decides the winner. Each team bats for one over, and further super overs are played if the first is also tied.