Covering IFAB · MCC · World Tennis (ITF) · FIBA · NBA rules
Sports Rules, Dimensions, Records & History, Explained Simply
Laws of Sport is an independent reference site for the official rules, playing-field dimensions, equipment standards, terminology, records and history of football, cricket, basketball and tennis. We explain the rulebooks in clear language and link to the governing bodies' official documents.
Last updated: 3 October 2026 — reflects the IFAB Laws of the Game 2026/27 and the MCC Laws of Cricket 2026 edition.
Search rules, dimensions, records… (try "offside" or "cricket pitch length")
Choose a sport to find beginner-friendly rule explanations, measurement guides, key terms, and sourced records. Rules can vary by competition and edition, so each guide identifies its scope and links to the relevant official source.
Football (Association Football / Soccer)
IFAB & FIFA · Laws first written 1863 · IFAB founded 1886
17 Laws of the Game
Football is governed by 17 Laws set by the International Football Association Board (IFAB). Our guides cover pitch dimensions, fouls and cards, DOGSO, VAR, semi-automated offside technology and the new 2026/27 changes: countdowns for throw-ins and goal kicks, faster substitutions, and an expanded VAR protocol.
The 42 Laws of Cricket are written and maintained by the MCC at Lord’s. We cover pitch and crease measurements, the ways a batter can be dismissed, the LBW law, Test/ODI/T20 formats, and what changes from 1 October 2026: laminated bats, ball sizes 1–3 and end-of-day over rules.
Basketball is played under FIBA international rules and NBA rules. We explain the differences: game length, court size, the 24-second shot clock, the 14-second reset, the restricted-area arc, goaltending and traveling.
The Rules of Tennis are maintained by World Tennis, formerly the International Tennis Federation (ITF). Our guides cover singles and doubles court sizes, net height, Love-15-30-40 scoring, the 25-second serve clock, and tiebreak formats at Grand Slams and on tour.
DIRECT, SIMPLE EXPLANATIONS FOR HIGH-FREQUENCY QUESTIONS
FOOTBALL · LAW 11DIRECT ANSWER GUIDE
What Is the Offside Rule in Football?
A player is in an offside position if any part of their head, body or feet is in the opponents' half (not counting the halfway line) and is nearer to the opponents' goal line than both the ball and the second-last opponent. Being in an offside position is not an offence by itself. An indirect free kick is given only if the player becomes involved in active play.
KEY POINTS: Offside is judged at the moment the ball is played or touched by a teammate. Hands and arms are not counted. There is no offside directly from a goal kick, throw-in or corner kick.
Records change. Check the "as of" date on each row.
#
Record
Holder
Country
Value
As of / source
1
Most men's international goals (football)
Cristiano Ronaldo
Portugal
146 goals
October 2026 · 234 caps; first player to score at six World Cups
2
Highest individual Test score (cricket)
Brian Lara
West Indies
400* not out
Antigua, 2004 (vs England)
3
Most men's Grand Slam singles titles (tennis)
Novak Djokovic
Serbia
24 majors
After 2026 US Open (last title: US Open 2023)
4
Most regular-season points (NBA)
LeBron James
United States
43,440
End of 2025–26 season (still active; total will rise in 2026–27)
5
Fastest recorded serve (tennis, men)
Sam Groth
Australia
263.4 km/h (163.7 mph)
Busan Challenger, 2012 · a Challenger-level mark, not an ATP Tour record
6
2026 FIFA World Cup winner
Spain
Spain
Beat Argentina 1–0 a.e.t.
19 July 2026, MetLife Stadium
Modern Officiating Telemetry
Technology in officiating
VAR
Video Assistant Referee
VAR helps the referee fix clear and obvious errors or serious missed incidents. Under the 2026/27 Laws its scope covers goals, penalty decisions, direct red cards, mistaken identity, incorrect second yellows, wrong-player cards, corner-kick decisions, and pre-restart offences.
SAOT
Semi-Automated Offside Technology
Multi-camera optical tracking and an embedded ball sensor help match officials make faster, consistent offside decisions, generating 3D positional animations for broadcasters.
DRS
Decision Review System
Ball-tracking (Hawk-Eye), UltraEdge audio frequency detection, and thermal imaging review caught-behind, LBW, and run-out appeals in international cricket.
ELC
Live Electronic Line Calling
High-speed camera tracking systems call lines automatically in real time across Grand Slam and tour events, replacing on-court line judges with millimetre precision.
Chronological Origins & Codifications
Key milestones in sports rule history
1787
Marylebone Cricket Club Founded
The Marylebone Cricket Club (MCC) is founded at Lord’s, London, and later becomes the recognized custodian of the Laws of Cricket.
1863
Football Association Codification
The Football Association meets at Freemasons’ Tavern in London and publishes the first universal 13 Laws of the Game, distinguishing football from rugby handling rules.
1877
First Wimbledon Championships
The All England Croquet and Lawn Tennis Club hosts the inaugural tournament, establishing standard court geometry and scoring.
1891
Invention of Basketball
Dr James Naismith writes the 13 original rules for basketball at Springfield College, Massachusetts, using peach baskets.
1913
World Tennis (ITF) Founded
The International Lawn Tennis Federation (now World Tennis, formerly ITF) is founded in Paris to administer worldwide rules.
1970
Yellow and Red Cards Debut
Conceived by English referee Ken Aston to overcome multilingual barriers, disciplinary cards debut at the 1970 FIFA World Cup.
2018
VAR Written into Law
Following international trials, IFAB formally writes Video Assistant Referee protocols into Law 5 of the Laws of the Game.
2022
Grand Slam 10-Point Tiebreak Unified
All four Grand Slam tournaments unify their final-set rule, adopting a 10-point championship tiebreak at 6–6.
2026
2026 Major Regulatory Revisions
IFAB 2026/27 Laws take effect (1 July); ITF rebrands as World Tennis (25 June); MCC 2026 Laws take effect (1 October).
Laws of Sport is an independent reference site that explains official sports rules, playing dimensions, equipment standards, records and history for football, cricket, basketball and tennis. We summarise the rulebooks in plain language and link to the official documents.
Football has 17 Laws of the Game (IFAB). Cricket has 42 Laws (MCC). Tennis has 31 numbered rules plus appendices (World Tennis / ITF). Basketball is governed by separate FIBA and NBA rulebooks rather than a single numbered list.
Football: IFAB's 2026/27 Laws took effect on 1 July 2026, adding a visible five-second countdown for delayed throw-ins and goal kicks, a ten-second limit for a substituted player to leave the field, a one-minute rule after on-field injury treatment, and a wider VAR protocol. Cricket: the MCC's 2026 edition takes effect on 1 October 2026 with 73 changes, including laminated bats in open-age cricket and new ball-size labels. Tennis: the ITF became World Tennis on 25 June 2026; the Rules of Tennis were not changed by the rebrand.
We review our pages whenever IFAB, the MCC, World Tennis/ITF, FIBA or the NBA publish new editions, and we show a 'last updated' date on every guide. Football Laws change each 1 July, cricket Laws when a new MCC edition is released, and tennis rules each 1 January.
From the official rulebooks: the IFAB Laws of the Game (Law 1), the MCC Laws of Cricket (Law 6), the FIBA and NBA rulebooks, and the World Tennis/ITF Rules of Tennis (Rule 1). We show every measurement in metric and imperial.
Games are 4 × 10 minutes in FIBA and 4 × 12 minutes in the NBA. The courts differ slightly (28 × 15 m vs 94 × 50 ft), as do the three-point line distance and some foul rules. Both use a 24-second shot clock with a 14-second reset in many situations.
At all four Grand Slams, yes: a 10-point tiebreak at 6–6 in the final set. ATP and WTA tour events use a 7-point tiebreak. Some events use a 10-point match tiebreak in place of the final set.
Our guides are educational and are a good way to learn and revise. For exams and official duties, always use the current official rulebook from your governing body, because rules and local competition regulations can differ.
Offside depends on where players and the ball are at one exact moment, and on whether the player becomes involved in play. Our Law 11 explainer breaks it into simple steps with diagrams.
Rules, dimensions, and officiating procedures are referenced directly against published primary documents from IFAB, FIFA, MCC, ICC, World Tennis/ITF, FIBA, and the NBA.
Regular Review Cadence
Guides display their last-reviewed dates and are updated when international governing bodies publish revised rule editions (IFAB 1 July, MCC new editions, Tennis 1 January).
Independent Educational Resource
Laws of Sport is an independent educational reference site helping fans, players, coaches, and students understand sports rules in accessible, plain language.
Notice: Laws of Sport is an independent educational resource. The official Laws and rules remain the property of their governing bodies (IFAB, FIFA, MCC, ICC, World Tennis/ITF, FIBA, NBA). For competition use, always check the current official rulebook.