Daily Junction.mobi portalSports · June 4, 2024 · Tom Bennett · 6 min
Tennis uses an unusual ladder of points, games, sets and matches, complete with love, deuce and tie-breaks. This is a clear, beginner-friendly guide to how it all fits together.
To a newcomer, tennis can sound as though it is being scored in another language. Fifteen, thirty, forty, deuce, advantage, love - the umpire calls out numbers that do not count in any normal order, and the match is divided into points, games and sets that all seem to end at different moments. Yet beneath the odd vocabulary sits a tidy, logical structure. Once you see how the layers stack up, the scoring becomes easy to follow, and the strange numbers turn into part of the sport's charm.
Tennis scoring is a four-level system in which points are won to build a game, games are won to build a set, and sets are won to decide the match. Each level has its own finishing line, and you climb the ladder one rung at a time: collect enough points and you bank a game; collect enough games and you bank a set; win enough sets and you win the whole contest.
The complication that throws people is not the structure but the labels. Points are not counted one, two, three; they are called fifteen, thirty, forty. And several rungs of the ladder require you to win by a margin rather than simply reaching a target. Take those two wrinkles in turn and the whole thing comes clear.
The smallest unit is the point, won on each rally. But instead of counting points as 1, 2, 3, 4, tennis uses its own sequence:
| Points won | Called |
|---|---|
| 0 | Love |
| 1 | 15 |
| 2 | 30 |
| 3 | 40 |
| 4 | Game (usually) |
So a player who has won two points and lost one leads "thirty-fifteen". The server's score is always read out first, which is why the same scoreline can be called either way depending on who is serving.
Two words need translating. Love simply means zero - a game at 40-0 is "forty-love". And the leap from 40 to "game" is where the margin rule first appears, because you cannot always win a game just by reaching four points.
Here is the first real twist. To win a game you must both reach four points and be two points clear. If both players reach 40, the score is not "forty-all" but deuce - and from deuce, a single point is not enough.
From deuce, the player who wins the next point has advantage. If they then win the following point as well, they take the game. But if they lose it, the score slides back to deuce, and the duel begins again. A tight game can swing through deuce and advantage many times before someone finally wins two points back to back. This "win by two" idea is the engine of tennis's tension, and it returns at higher levels too.
Win a game and you have climbed the first rung. Now you start collecting games to win a set. The standard target is six games, but - you will have guessed it - you must again win by a margin of two.
So:
That 6-6 scoreline is where the tie-break steps in, the mechanism designed to stop sets dragging on indefinitely.
The repeated "win by two" rule is the thread running through tennis. A point at deuce, a set at 5-5, a tie-break at 6 points all - again and again the game refuses to let you win by the narrowest possible margin, which is exactly what makes close matches so gripping.
At six games all, players contest a tie-break to decide the set. The scoring here is refreshingly normal: points are counted 1, 2, 3 and upwards. The first player to seven points, with a two-point lead, wins the tie-break, and with it the set, by seven games to six.
If the tie-break itself reaches 6-6, it continues until someone leads by two - so a tie-break can end 7-5, or 10-8, or higher. Within the tie-break, service alternates in a set pattern and the players swap ends every six points, to keep conditions such as sun and wind fair.
A historical note: deciding sets once ran on without a tie-break at some tournaments, occasionally producing marathon matches. The Grand Slams have since standardised a final-set tie-break, so even the longest contests now have a defined finish.
The top of the ladder is the match, won by taking a majority of sets. Two formats dominate:
So a women's Slam match might finish 6-4, 7-5, while a men's Slam match could run to five sets and a deciding tie-break. The longer format rewards stamina as much as skill - one reason fitness and recovery matter so much, and why even amateurs benefit from sensible habits like those covered in how to prevent running injuries and warming up with proper stretching before a hard session on court.
A handful of extra rules round out the picture without changing the scoring itself:
Hold onto these and you can follow any singles match from the umpire's calls alone. Doubles uses the same scoring, with serving rotating among the four players.
It would be easy to "fix" tennis scoring with plain numbers, but the quirks do real work. The "win by two" rule at points, games and tie-breaks manufactures jeopardy: a player can be a single point from defeat and still claw back, because the rules deny easy, narrow wins. The result is a sport full of momentum swings, where a match is rarely over until the final point is won. That blend of clear structure and built-in drama is what makes other rule systems fascinating to unpick too, from the offside law to the way Formula 1 points and standings work.
Tennis scoring is a ladder with four rungs: points build a game, games build a set, and sets decide the match. Within a game the points are called 15, 30, 40 and game, with zero known as love, and you must win by two from deuce. A set goes to six games (win by two), with a tie-break to settle 6-6, and a match is best of three sets - or best of five for the men at the Grand Slams. The vocabulary is eccentric and the margins are deliberately tight, but that is the point: it is precisely this structure that keeps even a one-sided-looking match alive until the very last ball.
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