Tennis has the most intimidating scoreboard in mainstream sport. Newcomers see numbers that jump 15, 30, 40, hear the umpire say love, and quietly decide the game is not for them. It is far simpler than it looks, and once it clicks, it never unclicks.
The four levels of the ladder
Tennis is a nested game. You win points to win games, games to win sets, and sets to win the match. Think of it as four rungs on a ladder, each with its own finish line.
- Points are the smallest unit, one exchange of the ball.
- Games are won by stacking up points.
- Sets are won by stacking up games.
- The match is won by winning enough sets, usually two out of three.
Why a game counts 15, 30, 40
Here is the part everyone stumbles on. Inside a single game, the score does not go 1, 2, 3, 4. It goes:
- 0 points is called love
- 1 point is 15
- 2 points is 30
- 3 points is 40
- 4 points wins the game, provided you are two points clear
The odd numbering is a historical quirk, most likely tied to a clock face divided into quarters. You do not need to know why to enjoy it. Just remember the sequence: love, 15, 30, 40, game.
When both players reach 40, the score is deuce. From deuce, one player must win two points in a row. Win the first and you have the advantage; win the next and you take the game. Lose it and you return to deuce. This is why a single game can swing back and forth for minutes, and why deuce is where nerves live.
Winning a set
A set goes to the first player to win six games, but again with a margin: you must lead by two. So 6-4 wins the set, but 6-5 does not. If it reaches 6-6, the set is usually decided by a tiebreak.
The tiebreak, explained
A tiebreak is a mini-game played to settle a 6-6 set. Here the scoring is refreshingly normal: you count 1, 2, 3, and the first to seven points wins, again by two. Players switch who serves in a set pattern, and they change ends every six points to keep conditions fair.
The tiebreak is where tennis briefly becomes sudden-death poker. One mini-run of two or three points usually decides an entire set.
Putting it together
Most matches are best of three sets, so the first player to win two sets wins the whole thing. The biggest men's events at the Grand Slams stretch to best of five, which is why they can last four or five hours.
Say you see a final score of 6-4, 3-6, 7-6. Read it left to right: the winner took the first set six games to four, lost the second, and edged the third in a tiebreak. That is the entire story of a two-hour match compressed into six numbers.
Watch one match with this guide open, and by the second set you will be calling the score before the umpire does.