How Badminton Scoring Works: Rules & Point System
Badminton uses a rally point scoring system, meaning a point is scored on every rally regardless of who served. This guide explains the complete scoring structure used in all BWF-sanctioned competitions, from local club matches to the Olympics.
The Rally Point System
Since 2006, badminton has used the rally point system. Before this, points could only be scored by the serving side (similar to old volleyball rules). Under the current system:
This system made games faster and more predictable in length, which was a key factor for television broadcasts. It also eliminated the frustrating scenario where a player could dominate rallies but not score because they were not the server.
Game Structure: Best of 3 Games to 21
A badminton match consists of the best of three games. Each game is played to 21 points. The first side to reach 21 points wins that game. If each side has won one game, a decisive third game is played.
The match winner is the first side to win two games. A match can end 2-0 (straight games) or 2-1 (after a deciding third game). There are no tiebreak sets or additional games beyond three.
Deuce Rules: When the Score Reaches 20-20
If the score reaches 20-20, the standard "first to 21" rule is modified. Two special rules come into play:
In practice, most games that reach 20-20 are decided within a few points. The 30-point cap is rarely reached in professional play, but it provides a definitive endpoint for exceptionally close contests.
Change of Ends
Players switch ends of the court at specific points during a match to ensure fairness (compensating for differences in lighting, air currents, or background visibility):
- 1.At the end of the first game
- 2.At the end of the second game (if there is a third game)
- 3.During the third game, when the leading score reaches 11 points
The mid-game change of ends in the third game is unique to the deciding game. It adds a strategic element, as players must readjust to the opposite end of the court during the most critical part of the match.
Intervals and Breaks
The BWF allows specific breaks during a match:
Players are not allowed to leave the court during a match without the umpire's permission. The intervals at 11 points and between games are the only scheduled breaks. Taking excessive time or deliberately slowing play can result in a warning or fault.
Related Guides
Frequently Asked Questions
How many points do you need to win a game of badminton?
You need 21 points to win a game, provided you are at least 2 points ahead. If the score reaches 20-20, play continues until one side leads by 2 points, or until the score reaches 30-29, whichever comes first.
How many games are in a badminton match?
A badminton match is best of 3 games. The first side to win 2 games wins the match. A match can end in 2 straight games (2-0) or go to a deciding third game (2-1).
What happens at 20-20 in badminton?
The game enters deuce. Play continues until one side leads by 2 points (e.g., 22-20, 23-21). If the score reaches 29-29, the next point wins the game regardless, making 30-29 the maximum possible score.
Can you only score on your serve in badminton?
No. Since 2006, badminton uses rally point scoring. A point is scored on every rally regardless of who served. Before 2006, the old scoring system only allowed the serving side to score, but this was changed to make games faster and more consistent in duration.
When do you switch sides in badminton?
Players change ends after the first game, after the second game (if there is a third), and during the third game when the leading score reaches 11 points. This ensures neither player has an unfair advantage from court conditions.