Tennis score keeper

How the score keeper works

It follows the scoring rules in the ITF Rules of Tennis:

• Points in a game: no point is "love" (zero), then 15, 30 and 40, and the next point wins the game. The server's score is called first.
• Deuce and advantage: at 40-40 the score is deuce. With standard scoring a player must win two points in a row from deuce: advantage, then game.
• No-ad scoring: at deuce one deciding point is played and its winner takes the game.
• Sets: the first player to six games with a two-game lead wins the set. At 6-6, a tiebreak game is played.
• Tiebreak: points are counted 1, 2, 3 and so on. The first to 7 points with a two-point lead wins the tiebreak and the set, 7-6. The player whose turn it is serves the first point, then the players take turns serving two points each.
• Serve: players alternate serving games. After a tiebreak, the player who received first in the tiebreak serves the first game of the next set.

Worked example

Player 1 serves and wins the first point: 15-love. Player 2 wins the next two: 15-30. Player 1 wins two: 40-30, then Player 2 levels: deuce. With no-ad scoring, the next point decides the game. With standard scoring, the next point gives one player the advantage.

Our guides on tennis tiebreak rules and no-ad scoring in tennis explain both formats in more detail.

Limits

The score keeper plays a standard 7-point tiebreak at 6-6 in every set, including the final set. Some events use a 10-point match tiebreak in place of a final set, or a 10-point tiebreak at 6-6 in the final set. It does not track changes of ends or which side the server stands on.