Tennis Basics
How to Keep Score in Tennis
Tennis scoring isn't complicated once you see the pattern — it just uses its own vocabulary. Here's how it actually works.
Points within a game
Each game starts at Love (zero) for both players. Points then count up in an unusual sequence:
- Love → 15 → 30 → 40 → Game
Win four points before your opponent, and you win the game — unless the score reaches 40-40.
Deuce and Advantage
When both players reach 40, the score is called Deuce. From deuce, a player must win two points in a row to take the game. Win the first point after deuce and you have Advantage. Win the next point too, and you win the game. Lose it instead, and the score returns to deuce — this can repeat for a while in a close game.
Games, sets and winning a match
A set is won by the first player to reach 6 games, with at least a 2-game lead (so 6-4 wins a set, but 6-5 doesn’t — you’d play on to 7-5). Most matches are decided over best of 3 sets — win 2 sets and the match is yours. Some tournaments, mostly men’s Grand Slams, use best of 5.
Tiebreaks explained
If a set reaches 6 games all, most competitions play a tiebreak to decide it. Scoring switches to a simple count — 1, 2, 3 and so on — and the first player to reach 7 points with a 2-point lead wins the tiebreak, and the set 7-6.
Common scoring terms
- Ace — a serve the returner doesn’t touch; an automatic point.
- Fault — a missed serve (into the net or outside the service box). Two faults in a row is a double fault and a lost point.
- Let — the serve clips the net but still lands in; the point is replayed.
- Break point — a point that, if won by the receiver, would win them the game on their opponent’s serve.
The part nobody tells you
Scoring is simple. Remembering it for two hours isn't.
Deuce, advantage, who served last, what the score even was before that last long rally — it’s easy to lose track once you’re actually playing. That’s the exact problem AceBand was built around: two physical buttons on the front of the watch, so you can update the score without reaching for a phone or breaking your focus.
AceBand is currently in beta — we’re building it for real, testing it on real courts, and preparing to bring it to more players through an upcoming crowdfunding campaign. If you want to see how it came together, our build story is on the Journey page.
Want to see how AceBand tracks a tennis score without a phone? Learn more about the AceBand tennis score watch.