How many games are in a tennis set?
You win a set by taking 6 games — as long as you’re ahead by at least two. If it reaches 6-6, a tiebreak settles things. It’s one rung of tennis’s famously quirky scoring ladder, so here’s the whole thing.
Points build games, games build sets
Tap a rung to see how each level of tennis scoring works.
Win six games — with a two-game cushion — to take a set. So 5-5 plays on to 7-5; and at 6-6 a tiebreak decides it, for a 7-6 set.
The short answer: 6 games
A set goes to the first player to win six games — but, like almost everything in tennis, you have to win it by a clear margin of two. So if the score climbs to 5-5, you keep playing: win the next two games and you take the set 7-5. If instead it reaches 6-6, a tiebreak breaks the deadlock and the set finishes 7-6. (Old-style “advantage sets,” with no tiebreak, could run on forever — but no Grand Slam uses them anymore.)
Tennis scoring, from the top
Tennis is scored in a neat little hierarchy: points build games, games build sets, and sets build the match. The oddest part is the points. Instead of 1-2-3, a game is scored love (0), 15, 30, 40, game. Win four points with a two-point lead and the game is yours. If both players reach 40, that’s deuce — and you must win two points in a row, going through “advantage,” to close it out.
Stack those up and the rest follows: six games (by two) make a set, and enough sets make a match. Most matches are best of three — first to two sets — which is the format on the men’s and women’s tours and in the women’s Grand Slams. The men play best of five (first to three sets) at the four majors, which is why those matches can run so long.
How a tiebreak works
At 6-6, the set is decided by a tiebreak. It’s scored in plain numbers this time: the first to 7 points, winning by two, takes the set. One player serves the opening point, then the serve switches and each player serves two points at a time, with ends changed every six points. Scores can stretch out — 10-8, 12-10 — whenever neither player can grab that two-point gap.
There’s a bigger version for the very end of a match. Since 2022, all four Grand Slams settle a deciding set at 6-6 with a 10-point “super” tiebreak (still win by two). It’s why a modern match can’t become a marathon — which brings us to the most famous score in tennis.
Where the strange words come from
Tennis vocabulary is half the charm. “Love” for zero may come from the French l’œuf (“the egg,” shaped like a 0), or from playing “for love” — that is, for nothing. “Deuce” traces to the French à deux, meaning two points are needed to win. The jump of 15, 30, 40 is often pinned on an old clock face — quarter, half, three-quarters — with 45 shortened to 40. And the slang is delightful: a “bagel” is a set won 6-0 (the zero looks like a bagel), while a “breadstick” is a 6-1 set.
The most famous score in tennis
Before the new tiebreak rules, deciding sets had no safety net — and in 2010 that produced something extraordinary. At Wimbledon, John Isner beat Nicolas Mahut with a final set of 70-68, in a match that lasted 11 hours and 5 minutes across three days. Under today’s 10-point super tiebreak it simply couldn’t happen. By contrast, a normal set takes only about 30 to 50 minutes — a reminder of just how far that one went.
Tennis scoring — 5 questions
How many games do you need to win a tennis set?
Sources
- USTA & ITF rules of tennis — the points/games/sets/match scoring, the two-game set margin, and tiebreak mechanics.
- Grand Slam Board (2022) — the 10-point deciding-set tiebreak now used at all four majors; the 2010 Isner–Mahut record.
Related
Love, fifteen, thirty, forty — six games to a set, and a whole language of its own along the way.