Cricket T20 (ICC) Rules Explained

OpenSourceSports

⌘K

OpenSourceSports

⌘K

Loading OpenSourceSports…

Cricket T20 (ICC) Rules Explained | OpenSourceSports

Full Rulebook(11 sections)

Plain-English summary drawn from the official rulebook — great for getting started. For competitive or formal play, see the Complete Rulebook. Hover any rule to see its source sentence.

Overview

Two sides compete in T20 cricket, each batting for a maximum of 20 overs to score as many runs as possible, with the team scoring more runs winning. Introduced as an international format in 2005, it is governed by ICC Playing Conditions that modify the MCC Laws of Cricket for T20 International matches.

How to win

Runs scored by: running between wickets (1, 2, 3 runs per ball typical) or boundaries (4 along the ground, 6 over the b…
Runs scored by: running between wickets (1, 2, 3 runs per ball typical) or boundaries (4 along the ground, 6 over the b…
Extra run types — Byes, leg-byes, wides, no-balls, and penalty runs all add to batting team's score (+ variants)
Team total wins — Most runs across the innings decides the winner; wickets lost are secondary.
Tie: if scores level after both innings → Super Over (1 over per side; if Super Over also tied → another Super Over unt…

The game

Squad & officials — 11 players per side; 2 on-field umpires, 1 TV umpire, 1 match referee (+ variants)
11 players per side — Each team fields exactly 11 players.

Cultural norms — not in the rulebook. These are widely understood traditions and expectations among experienced Cricket T20 players. Not enforced by referees; enforced by the game’s community. Rules marked ⚡ Contested are genuinely debated even among veterans.

🚨 Cardinal Rule— Serious violation — may trigger retaliation or social exclusion

Do Not Claim a Bump Ball as a Catch
— If a fielder takes a catch after the ball has bounced off the ground ('bump ball'), they must not claim it as a fair catch. The expectation is that the fielder immediately signals to the umpire that the ball grounded, even before an appeal. Claiming a catch you know to be false is considered one of cricket's most serious integrity breaches.(DRS and third-umpire review have reduced the number of uncontested bump-ball incidents, but the fielder honesty norm predates and underpins the review systems.)[1][2]
Withdraw a Knowingly Dishonest Appeal
— If a fielder appeals for a dismissal knowing it is not out — pressing a bump-ball catch appeal, an LBW where the ball clearly hit the bat first, or similar — the fielder or fielding captain is expected to actively signal to the umpire that the appeal should be withdrawn. Pursuing a dishonest appeal for competitive gain is a clear Spirit of Cricket violation.(Distinct from a mistaken appeal: dishonest withdrawal concerns cases where the fielder has clear knowledge the dismissal is invalid.)[1][2]
Sledging Has Limits: No Personal or Discriminatory AbuseProfessional play
Verbal gamesmanship ('sledging') is a tolerated part of cricket's competitive culture — psychological pressure and competitive banter are broadly accepted. The unwritten line is crossed when language targets a player's race, religion, ethnicity, family, or becomes degrading on a personal level. That line is enforced primarily by player culture rather than formal rules.

Section 1: Introduction

Twenty20 (T20) is the shortest format of international cricket, with each side batting for 20 overs. Introduced as an international format in 2005 and as a World Cup in 2007, T20 is the format selected for cricket's return to the Olympic program at the 2028 Los Angeles Games — cricket's first Olympic appearance since 1900 in Paris. The ICC publishes separate Playing Conditions for T20 International (T20I) matches that modify the MCC Laws of Cricket — these playing conditions are the authoritative ruleset for international T20 play. Domestic T20 leagues (IPL, BBL, PSL, etc.) have their own playing conditions that broadly mirror ICC rules with league-specific exceptions (e.g., Impact Player, free hits expanded). For the long-format laws, see the sibling ICC Laws of Cricket entry.

Section 2: Equipment

Ball: white leather ball (4-piece construction) at international level; weight 5.5-5.75 oz (155.9-163 g)
Bat: max 38" length × 4.25" width; willow blade; max thickness 67 mm edge, 60 mm depth
Pads: batting pads, thigh pads, arm guards, helmet with grille, abdominal guard, gloves
Wicket keeper: additional inner glove + wicket-keeping gloves with webbing
Stumps: three wooden stumps + two bails, 28" tall, 9" wide at top
Players wear team-coloured kit (white-ball cricket uses coloured uniforms vs. whites in Test cricket)

Section 3: Playing Area

Field: oval; boundary diameter typically 130-170 yards (120-155 m)
Pitch: central 22 yards (20.12 m) strip of compacted earth/grass
Crease markings: bowling crease, popping crease (4 ft from stumps), return creases
30-yard fielding circle drawn for power-play and fielding-restriction enforcement
Wicket at each end (3 stumps + 2 bails)

Section 4: Players & Officials

11 players per side
Captain, wicket-keeper, batters, bowlers, all-rounders, fielders
Officials: 2 on-field umpires, 1 TV (third) umpire, 1 reserve umpire, 1 match referee
DRS (Decision Review System): teams have 2 reviews per innings (3rd umpire reviews via ball-tracking, ultra-edge, hot-spot)

Section 5: Rules of Play

Match Format

Two innings — each side bats once for 20 overs (or until all-out)
Each over = 6 legal deliveries; each bowler max 4 overs per innings
Match target ~75-90 minutes per innings; total ~3-3.5 hours

Fielding Restrictions

Power-play (overs 1-6): only 2 fielders allowed outside the 30-yard circle
After power-play (overs 7-20): maximum 5 fielders outside the 30-yard circle
At most 4 fielders on leg side at any time

Bowling Restrictions

Max 4 overs per bowler
No-ball: bowler oversteps front popping crease → free hit (next ball cannot dismiss batter except run-out)
Wide ball: outside off-stump (per umpire judgment) → extra run + re-bowled

Batting

Batter dismissed by: bowled, caught, LBW, run out, stumped, hit wicket, obstructing field, timed out, retired
Free hit ball: batter cannot be dismissed except run out

Section 6: Scoring

Runs scored by: running between wickets (1, 2, 3 runs per ball typical) or boundaries (4 along the ground, 6 over the boundary on the fly)
Extras: byes, leg-byes, wides, no-balls, penalty runs
Team total: sum of runs across innings (vs. wickets lost)
Tie: if scores level after both innings → Super Over (1 over per side; if Super Over also tied → another Super Over until decided)
Tournament: round-robin pool + knockout (T20 World Cup); Olympic format TBD

Section 7: Violations & Penalties

Slow over-rate: fielding side penalized 5 runs to opponent per missed over; captain banned if persistent
Ball tampering: 5-run penalty to opponent + match-suspension fine for offender
Dissent / unsportsmanlike: match referee may issue suspension or match-fee deduction
Mankad (running out non-striker): permitted — recategorized from "Spirit" to "Run Out" in 2022; not penalized
Anti-corruption: ICC Anti-Corruption Code; full investigation + suspension powers
Anti-doping: WADA Code; ICC-administered testing

Section 8: Safety Considerations

Following the death of Phillip Hughes (2014), helmet standards for batters facing fast bowling were upgraded to British Standard BS7928:2013 — neck-protector ("Stem Guard") strongly recommended. ICC requires: certified match-day medical team (team physician + ambulance + medical center), concussion-substitute system (2019-onwards: like-for-like replacement if on-field concussion); player removal for SCAT-5 evaluation. Helmets mandatory for batters facing fast bowling, wicket-keepers standing up to stumps, and close-in fielders within 8 yards of the bat. Weather + light: match referee + umpires authorize stoppage for poor light, rain, or lightning. DLS (Duckworth-Lewis-Stern) method recalculates targets in rain-shortened games. Heat-stress protocols at hot venues. AED on-site at every ICC-sanctioned match.

⚠️ Strong Expectation— Most experienced players will take notice and be upset

Walking: Self-Dismiss When You Know You Are Out⚡ Contested
— A batsman who knows they have edged a catch to the keeper or slips is expected by tradition to 'walk' — to depart before the umpire raises their finger. Once considered the defining mark of cricket honour, this practice is now extremely rare at the professional T20 level, where players almost universally await the umpire's decision or invoke DRS.(Far more prevalent in amateur cricket and pre-DRS eras. Adam Gilchrist's decision to walk in the 2003 World Cup semi-final was treated as a remarkable exception even then.)[1][2][3]
No Mankad Without Prior Warning⚡ ContestedProfessional play
— Running out the non-striker who backs up too far before ball delivery — the 'Mankad' dismissal — was long held to require a prior verbal warning to the batsman as a matter of sportsmanship. The ICC removed the warning requirement in 2022 and reclassified it as a standard run-out, but many players and commentators still view using it unannounced as contrary to cricket's code.(Named after Indian bowler Vinoo Mankad (1947). Remains one of cricket's most-debated etiquette questions precisely because the Laws changed but the culture has not fully followed.)[1][2][3]
Do Not Show Excessive Dissent to Umpires
— Cricket has a foundational tradition of accepting umpires' decisions without visible argument. Gesturing, audibly disputing, prolonged staring, or aggressively reacting to an umpiring decision is considered a serious breach of conduct. DRS provides the legitimate channel to challenge decisions; anything beyond invoking DRS is culturally impermissible.(ICC Code of Conduct formally penalises dissent as a Level 1 or Level 2 offence, but the cultural norm precedes and exceeds the formal rule.)[1][2][3]
Do Not Celebrate Aggressively in a Dismissed Batsman's FaceProfessional play
— When a wicket falls, bowlers and fielders may celebrate among themselves but are not to direct aggressive gestures, verbal taunts, or prolonged physical proximity at the departing batsman. Running down the pitch at the batter or staring them down as they leave draws both official ICC sanction and strong cultural criticism.(T20 cricket has a more expressive celebration culture than Test cricket, but targeted aggression directed personally at the dismissed batter remains clearly out of bounds.)[1][2]

ICC

About

Related Sports