Knowing how to keep score is the difference between casually hitting a shuttle and actually playing badminton. The modern system is simple once you understand a few rules. This guide covers the standard 21-point rally system, the deuce and cap rules, who serves and from where, and the new 3x15 system that the Badminton World Federation introduced in 2026.
The Basics: Rally Point Scoring
Modern badminton uses rally point scoring, which means a point is scored on every rally, no matter who served. This replaced the old system where only the serving side could score.
- Win the rally, win the point.
- Win the point, win the serve.
This makes games faster and easier to follow.
How to Win a Game (21 Points)
A standard game is played to 21 points, and you must win by 2 clear points.
- The first side to 21 with at least a 2-point lead wins the game (for example 21-15, 21-19).
- A match is best of 3 games. The first player or pair to win 2 games wins the match.
The Deuce Rule (20-20)
If the score reaches 20-20, 21 is no longer enough to win. You must win 2 points in a row to take the game.
- At 20-20, play continues until one side leads by 2 (for example 22-20, 23-21, 24-22).
The 30-Point Cap (29-29)
To stop games from lasting forever, there is a cap at 30.
- If the score reaches 29-29, the next rally decides everything.
- The winner of that single rally takes the game 30-29, even without a 2-point lead.
Quick Scoring Examples
|
Final score |
Result |
|
21-15 |
Win by reaching 21 with a 2+ point lead |
|
21-19 |
Win by exactly 2 |
|
20-20 then 22-20 |
Deuce, won by 2 in a row |
|
29-29 then 30-29 |
Cap reached, sudden point decides |
Serving and Sides: Who Serves From Where
The serve depends on the server’s score, and this trips up many beginners.
- Even score (0, 2, 4…): the server serves from the right service court.
- Odd score (1, 3, 5…): the server serves from the left service court.
- In singles, the server keeps serving and switches sides each time they win a point.
- In doubles, only one player serves at a time, and the rule above still sets which side.
Remember: the serve must be underhand, below waist height. Overhand serves are illegal.
New in 2026: The BWF 3x15 Scoring System
In 2026 the Badminton World Federation rolled out a new format for elite competition:
- Games are played to 15 points instead of 21.
- A match is best of 5 games instead of best of 3.
- Deuce and a cap still apply (the leading side must usually win by 2, with a cap to prevent endless games).
The 21-point system remains what most clubs, schools, and casual players use, so it is still the system to learn first. The 3x15 format mainly affects professional tournaments.
How to Track Your Score in a Casual Game
- Call the score out loud before each serve, server’s score first.
- Remember: even score serves from the right, odd from the left.
- At 20-20, switch to “win by 2” mode.
- Play best of 3 to decide the match.
Gear Up for the Court
Fast direction changes and long rallies demand breathable, sweat-wicking kit and a full range of motion. Train and play in our women’s training and men’s training collections, keep cool in lightweight shorts and tops, and stay focused with headbands and moisture-wicking socks. If you also play other racket sports, see what to wear for the court.
Frequently Asked Questions
How many points to win a game of badminton?
21 points, winning by at least 2, with a cap at 30. Elite play under the new BWF format uses 15 points, best of 5.
Can you score a point on your opponent’s serve?
Yes. Under rally scoring, you win a point any time you win the rally, regardless of who served.
What happens at 20-20 in badminton?
It goes to deuce: you must win 2 points in a row. If it reaches 29-29, the next single point wins 30-29.
