The Official Lawn Tennis Reference Codex & ITF Rulebook
Lawn Tennis is codified worldwide by the International Tennis Federation (ITF) and practiced professionally across the ATP Tour, WTA Tour, and the four Grand Slam tournaments (Wimbledon, Australian Open, Roland Garros, US Open). This reference repository details official court dimensions (78ft × 27ft singles, 78ft × 36ft doubles), net calibrations (3.0ft / 0.914m at center strap), the traditional scoring hierarchy (Love, 15, 30, 40, Deuce, Advantage), the 10-point final set Grand Slam championship tiebreak, surface pace classifications (Court Pace Index - CPI), and Electronic Line Calling (ELC) protocols.
The 8 Official Knowledge Pillars
Rules & Regulations
All 31 official ITF rules explained simply, including tiebreaks and foot faults.
History & Evolution
From the first Wimbledon in 1877 to the Open Era and today's Hawk-Eye technology.
Tactical Positions
How players position themselves on court: baseline play, serve-and-volley, and net tactics.
Terminology & A-Z
Tennis terms explained: Ace, Deuce, Let, Bagel, Break Point, and more.
Dimensions & Specs
Official court size for singles and doubles, plus net height.
Equipment Standards
The official rules behind tennis balls and racket size limits.
Official Records
Who has won the most Grand Slam titles in tennis history.
Documented Facts
Unforgettable tennis moments, from the longest match ever played to the fastest serves.
Key Statutory Laws & Officiating Rules
| Statute | Official Statute Title | Statutory Core Principle & Officiating Focus | Restart / Enforcement |
|---|---|---|---|
| Rules 1–4 | Court, Fixtures & Equipment | Exact specifications for rectangular court (78ft × 27ft singles / 36ft doubles), net posts (3.5ft / 1.07m high), center strap (3.0ft / 0.914m), ball pressure and deformation standards, and approved racket frame limits (max 29in length). | Pre-match coin toss |
| Rules 5–14 | Scoring, Serve & Return Order | Standard games scored Love-15-30-40-Game (requires 2-point margin at deuce); standard 7-point tiebreak at 6-6; Grand Slam 10-point deciding tiebreak; server alternates deuce and ad courts behind baseline. | First serve execution |
| Rules 15–20 | Service Mechanics & Faults | Server must not step on or over baseline before striking ball (Foot Fault); service let called if ball touches net cord and lands in correct service box (replayed without penalty); second serve permitted if first serve is a fault. | Second serve / Point awarded |
| Rules 21–26 | Play in Progress & Interference | Ball must be returned before bouncing twice; player or racket must not touch net while ball is in play; ball landing on boundary line is ruled good/in; hindered play protocols for intentional vs unintentional distractions. | Point scoring / Let replay |
| Rules 27–31 | Officiating, Coaching & Disciplinary Code | Chair umpire authority, Electronic Line Calling (ELC) protocols, off-court coaching allowances (permitted from player box between points), 25-second server shot clock, and 4-tier code violations (Warning, Point Penalty, Game Penalty, Default). | Code violation penalty |
Playing Surface & Equipment Dimensions
Tennis (ITF Grand Slam Codex) Officiating Technology & Review Protocols
Hawk-Eye Live Electronic Line Calling (ELC)
Replaces human on-field line judges with 12 high-speed synchronized optical cameras calculating ball impact coordinates in real-time, instantly broadcasting automated acoustic "OUT" or "FAULT" calls in under 0.1 seconds.
25-Second Server Shot Clock
Visual countdown clock on court measuring exactly 25 seconds from previous point conclusion to the server initial ball toss motion. Failure results in a Time Violation Warning followed by a Fault.