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How Does Tennis Scoring Work? Points, Games, Sets Explained

Tennis uses a unique scoring system: points run 15, 30, 40, game; games build into sets; sets build into a match. Here is a clear breakdown of how tennis scoring works at every level.

By SportsMonkie Editorial Updated June 29, 2026

Tennis scoring works in three nested layers: points build into games, games build into sets, and sets determine the match winner. Points follow the sequence love (0), 15, 30, 40, game — with deuce and advantage resolving tied games. A player typically needs to win six games to take a set and two or three sets to win the match.

This system is unique in sport — no other major game uses the 15-30-40 sequence — and it can confuse newcomers. Once understood, however, it creates dramatic tension at every level of play.

The Point System

A rally begins with the serve and ends when one player fails to return the ball legally. Each point won advances the score as follows:

Score NamePoints Won
Love0
151
302
403
Game4 (if uncontested at 40)

The server’s score is always called first. So “30-15” means the server has won two points and the receiver has won one.

Deuce and Advantage

When both players reach 40 (i.e., each has won three points), the score is called deuce. From deuce:

  • The player who wins the next point holds advantage
  • If they win the following point, they win the game
  • If they lose the advantage point, the score returns to deuce

This continues until one player wins two consecutive points from deuce. In some competitions (particularly tie-breaks and match tie-breaks), a “no-ad” scoring format is used, where the first player to win the point at deuce wins the game.

Games and Sets

To win a set, a player must win at least six games and be at least two games ahead of the opponent.

Set scoreWinner
6–0, 6–1, 6–2, 6–3, 6–4Player reaching 6 first (2-game lead)
7–5Player reaching 7 (after opponent wins 5th game from 5–5)
7–6Winner of the tie-break (see below)

If the set reaches 6–6, a tie-break is usually played to decide the set.

The Tie-Break

In a standard tie-break, players compete to reach 7 points with a margin of at least 2. Points in a tie-break are counted as 1, 2, 3 (not 15, 30, 40). The first player to reach 7 with a two-point lead wins the tie-break and the set (7–6).

Serving in a tie-break alternates: the first server serves one point, then service switches every two points.

At Wimbledon and some other Grand Slams, a match tie-break (also called a super tie-break) is played in place of a final deciding set — first to 10 points, with a two-point margin required.

Match Formats

FormatSets Required to Win
Best of 3 (ATP, WTA most events)First to 2 sets
Best of 5 (ATP Grand Slams)First to 3 sets
Best of 3 (WTA all events, including Grand Slams)First to 2 sets

Reading a Scoreline

When you see a match result like 7–5, 3–6, 6–4, it means:

  • Player A won the first set 7–5
  • Player B won the second set 6–3
  • Player A won the third set 6–4, winning the match 2 sets to 1

The score shows each set result in order from left to right.

Why the Scoring System Works

The layered structure creates multiple “mini-matches” within a contest. A player can lose the majority of points played and still win the match — because winning at deuce, winning tie-breaks, and winning the right games at the right moments matters more than raw point totals. This is part of what makes tennis so tactically rich and unpredictable.

Quick summary: Tennis scoring runs points (love, 15, 30, 40, game), games (first to 6 with 2-game lead, or tie-break at 6–6), and sets (first to 2 or 3 depending on format). Deuce resolves tied games; a tie-break resolves sets at 6–6. The structure rewards consistency and clutch performance in equal measure.

Frequently asked questions

Why does tennis scoring go 15, 30, 40?+

The origins are debated, but the most widely accepted theory is that the score was originally kept on a clock face divided into four quarters — 15, 30, 45 — with 45 later shortened to 40 to accommodate deuce. Another theory links it to medieval French courtly games.

What is deuce in tennis?+

Deuce occurs when both players reach 40-40 in a game. From deuce, a player must win two consecutive points to win the game — first scoring 'advantage,' then winning the following point to take the game.

How many sets do you need to win a tennis match?+

In most professional men's matches outside Grand Slams, the winner needs two sets out of three (best of three). At Grand Slams, men play best of five sets. Women play best of three sets across all competitions.

Sources