Table Tennis Service Rotation Validator
Instantly check who serves next and whether the game is at deuce, based on ITTF's 2-point service rotation rules
Table Tennis Service Rotation Validator
Instantly check who serves next and whether the game is at deuce, based on ITTF's 2-point service rotation rules
What Are Table Tennis Service Rotation & Deuce Rules?
Under current ITTF rules, service in table tennis rotates every 2 points — one player serves points 1–2, the other serves points 3–4, and so on — regardless of who wins each rally. This is different from badminton and volleyball, where only the serving side scoring keeps the serve; in table tennis, the serve rotates on a fixed schedule no matter who is winning points.
At deuce (10–10), the rotation shortens to every single point instead of every 2, and play continues until one player establishes a 2-point lead. Games are played to 11 points (win by 2, no upper cap), and a match is decided over a best-of-5 or best-of-7 sequence of games depending on the competition format.
How to Use This Validator
Why the 2-Point Service Rotation Exists
The rule changed from 5-points-per-serve to 2-points-per-serve in 2001, specifically to make the serving advantage swing back and forth more often — a long serving streak in the old system could let a strong server build an early, hard-to-overcome lead before their opponent ever got a real chance to attack. The shorter rotation makes each individual point matter more, since no player can lean on serve dominance for long.
The switch to single-point rotation at deuce exists for the same reason taken further: at 10–10, both players are one point from a chance to win, so alternating every single serve keeps the pressure of serving and receiving evenly split during the moments that decide the game, rather than letting the same server hold that leverage across two straight points.
?Frequently Asked Questions
Every 2 points, regardless of who wins each rally — one player serves for 2 consecutive points, then service passes to the opponent for the next 2, and so on throughout the game. This changes to every 1 point once the score reaches 10–10 (deuce).