Tennis rules

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📚 Original educational summaries — the official source prevails.PublishedUpdated on June 24, 2026

Zen Ref

The assistant that explains the rules simply.

Within a game, points are counted 15, 30, 40 then game, with 0 called "love". At 40-40 it is "deuce", and a player must then win two points in a row to take the game (advantage then game), except in a deciding-point format where the next point wins the game. Games are then strung together to win a set, and sets to win the match.

Answers based on ScoreZen summaries. The official source prevails.

Summary

Tennis is a racket sport played in singles (one against one) or doubles (two against two) on a court divided by a net. Each player hits the ball over the net into the opponent's half, aiming to make it impossible for the opponent to return legally. It is played on several surfaces such as clay, hard court and grass.

Objective

Win rallies by placing the ball in the opponent's side so they cannot return it within the rules, in order to win points, games, sets and ultimately the match.

Key rules

  • The serve starts every point: you serve diagonally into the opposite service box.
  • The ball may bounce only once on the ground before it must be returned.
  • A ball touching any line counts as in (inside the court).
  • On serve you get two attempts; a second miss gives the point to the opponent (double fault).
  • Players change ends after the 1st game, then every two games.
  • In doubles the court is wider: the side tramlines (alleys) are in play, except on the serve.

Scoring

Within a game, points are counted 15, 30, 40 then game, with 0 called "love". At 40-40 it is "deuce", and a player must then win two points in a row to take the game (advantage then game), except in a deciding-point format where the next point wins the game. Games are then strung together to win a set, and sets to win the match.

Format & duration

A match is played best-of-3 sets (2 sets to win) or best-of-5 sets (3 sets to win) depending on the competition. A set is usually played to 6 games with a 2-game lead, with a tie-break often deciding at 6-6. There is no time limit: the match lasts until a player reaches the required number of sets.

Winning conditions

The match is won by the player or team that first wins the number of sets required by the format (2 of 3, or 3 of 5).

Full rules

Unlock official mode, key events, referee signals, glossary, history and official sources with ScoreZen Essentiel.

Frequently asked questions

How does scoring work in tennis?

Within a game, points are counted 15, 30, 40 then game, with 0 called "love". At 40-40 it is "deuce", and a player must then win two points in a row to take the game (advantage then game), except in a deciding-point format where the next point wins the game. Games are then strung together to win a set, and sets to win the match.

How long does a tennis match last?

A match is played best-of-3 sets (2 sets to win) or best-of-5 sets (3 sets to win) depending on the competition. A set is usually played to 6 games with a 2-game lead, with a tie-break often deciding at 6-6. There is no time limit: the match lasts until a player reaches the required number of sets.

How do you win a match in tennis?

The match is won by the player or team that first wins the number of sets required by the format (2 of 3, or 3 of 5).

What are the main fouls and sanctions in tennis?

Service fault: the served ball does not land in the correct service box (or clips the net and lands out). Double fault: two consecutive service faults, and the point goes to the opponent. Foot fault: the server touches the baseline or steps into the court before striking the ball. Ball not returned before the second bounce, or returned outside the court limits. Touching the net, posts or opponent's side while the ball is in play. Conduct penalties (warning, point, game) for unsportsmanlike behaviour under the event's code.

How do I set up ScoreZen to keep score in tennis?

In ScoreZen, set up tennis with a hierarchical points/games/sets scoring mode: choose the "Official" preset for the 15-30-40-game count with advantages and tie-break, or a simplified "Casual" preset. Set the number of sets to win (2 or 3) and the deciding-point/tie-break option to match your format.

Can I run a tennis tournament or league with ScoreZen?

ScoreZen suits tracking tennis matches in a tournament or league: the set-and-game score transfers easily onto a draw or match sheet. Match the preset to the event format (best-of-3 or best-of-5 sets).