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Scoring rulesUpdated 2026-06-304 min read

Tennis scoring explained: 15, 30, 40, deuce, and tie-breaks

Understand points, games, sets, advantage, and a typical tie-break.

Tennis has four levels of scoring: points, games, sets, and the match. Within a game, the point sequence is love (zero), 15, 30, and 40.

Deuce and advantage

At 40–40, the score is deuce. Winning the next point gives a player advantage; winning another point wins the game. If the player with advantage loses the next point, the score returns to deuce.

Sets and tie-breaks

A common set format requires six games and a two-game lead. Many events play a tie-break at 6–6; check the event rules. A typical tie-break uses ordinary numbers and is won at seven points with a two-point lead.

Start scoring with iScoreboard

Set up a match, keep score, and show the result on another screen.

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Frequently asked questions

What happens after 40–40?

The next point gives advantage. A second consecutive point wins the game; otherwise the score returns to deuce.

Does a tie-break always end at seven?

No. The winner must also lead by two points.