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The WBi courtside guide

Badminton rules
explained.

Doubles, scoring and faults

Less second-guessing.
More enjoying the game.

By Western Badminton ·

Two WBi tournament players tracking the shuttle during a doubles rally
Community badminton in action at the 2026 WBi Flagship tournament.

New to doubles, returning after a break, or always wondering whose serve it is? Start here. You do not need to know every clause of the rulebook to feel comfortable on court.

Rules checked: October 2026. This guide describes standard indoor badminton, not Para badminton or every local variation. Check your event’s format: a WBi single-game-to-30 competition is different from the standard match format below.

Every rally counts.

The rally winner gains a point and the next serve. In the standard 2026 format, win two games to win the match.

21

Game target

Reach 21, with a two-point lead.

20–20

Keep playing

Two clear points are needed: 22–20 wins; 21–20 does not.

30

The limit

At 29–29, the next point wins.

In this format, the interval is up to 60 seconds at 11 points and up to two minutes between games. Change ends after each game and at 11 in a deciding third game. Official reference: Laws 7, 8 and 16.

Two players. One team score.

Use your team’s score to find the service court: even → right; odd → left. Zero is even. Serve diagonally to the designated receiver.

Doubles service court and rally boundariesA top-down court. A server on the near right serves diagonally to the shaded far-left box. That box includes the outer sideline but stops at the doubles long service line before the baseline. During rallies the full outer rectangle is in. S Serve targetincluding linesNetServer · right Back boundary / baselineFull outer court is in during ralliesIllustration · not to scale
The shaded box is one legal doubles service target. Mirror it when serving from the left.

On serve: wide, but shorter

Use the outer doubles sideline, centre line, short service line and doubles long service line—not the baseline.

In a rally: the full court

After the return, either partner can play the next shot. The outer sidelines and baseline count; a shuttle landing on the relevant line is in. Court-line explainer.

Who serves next?

  • Your team serves and wins: swap service courts; the same player serves again.
  • Your team receives and wins: keep your service-court assignments. The player assigned to the correct side for your new score serves.

Moving around during a rally does not change those assignments. There is no extra “second server” turn when your side loses a rally. Service-order explainer.

Before you serve

Server and receiver stand inside diagonal service courts without touching their lines, with part of both feet stationary on the floor. Release without adding spin; strike the shuttle’s base with the whole shuttle below 1.15 metres. Keep the racket moving forward once the service starts. Official reference: Law 9.

Fault, or play on?

A fault loses the rally. A let replays it without changing the score. Here are the situations casual players often ask about.

The shuttle touches the net

Play on if it crosses and otherwise remains legal—even on a serve. A net clip alone is not a let.

A player touches the net

Touching the net or its supports with your body, clothing or racket while the shuttle is in play is a fault.

Both partners hit the same shot

Consecutive hits by teammates are a fault. You cannot pass the shuttle to your partner. Catching and carrying it on the racket is also a fault.

The racket follows through over the net

Allowed if the first contact with the shuttle is on your side and the stroke is otherwise legal. Reaching across to hit it first is not allowed; nor is obstructing an opponent’s legal stroke.

The shuttle hits clothing or lands out

A shuttle touching a player or clothing is a fault. Landing beyond the relevant court boundary is out; landing on that boundary is in.

The receiver was not ready

A serve before the receiver is ready is a let. Attempting a return means the receiver is considered ready. A let keeps the same server and score.

See Badminton Bible’s fault explanations and the BWF Laws 13–14 for the detailed exceptions.

A little clarity. A better game.

Before your next match, agree on the format, identify the court lines and confirm the opening server and receiver. Call the score clearly before serving. If you lose track, pause between rallies and ask the official rather than guessing.

At WBi, questions are welcome. Learning together is part of building a confident, respectful badminton community.

Explore WBi events →

Keep the rulebook close

A beginner’s guide, not a replacement for your event regulations or the referee’s ruling. Sources checked on 16 October 2026:

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