Badminton Doubles Rules​

Badminton doubles is one of the fastest and most thrilling racket sports in the world. Whether you are watching an Olympic mixed doubles final or stepping onto the court for a local club tournament, understanding the official rules is essential. Governed by the Badminton World Federation (BWF), the rules for doubles differ significantly from singles, particularly regarding court dimensions, serving rotations, and positioning.

This comprehensive, fact-checked guide breaks down the official BWF badminton doubles rules, ensuring you have 100% accurate information on scoring, serving, and court regulations to dominate your next match.

1. Badminton Doubles Court Dimensions

Before understanding the gameplay, you must understand the playing area. The doubles court is wider than the singles court, utilising the outer side tramlines.

• Total Court Length: 13.4 meters (44 feet) for both singles and doubles.
• Doubles Court Width: 6.1 meters (20 feet).
• Singles Court Width: 5.18 meters (17 feet).
• Short Service Line: Located 1.98 meters (6.5 feet) from the net.
• Doubles Long Service Line: In doubles, the back boundary line is the same as the singles back boundary line. However, the doubles service line is located 0.76 meters (2.5 feet) shorter than the back boundary line.

Note: During a doubles rally, the entire 13.4m x 6.1m area is in play. However, during a serve, the shuttle must land between the short service line and the doubles long service line.

2. The Badminton Doubles Scoring System

Since 2006, the BWF has utilised a unified Rally Point System across all badminton disciplines. The scoring rules for doubles are as follows:

• Match Format: A match is played as the best of three games.
• Points to Win: The first side to reach 21 points wins the game.
• Rally Scoring: A point is scored on every single rally, regardless of which side served.
• Deuce Rules: If the score reaches 20-20, the side that achieves a 2-point lead first (e.g., 22-20, 24-22) wins the game.
• Maximum Cap: If the score reaches 29-29, the side that scores the 30th point wins the game. There is no sudden death; 30 is the absolute maximum.
• Intervals: Players get a 60-second interval when the leading score reaches 11 points in any game. There is a 120-second (2-minute) interval between the first and second games, and between the second and third games.
• Change of Ends: Players switch sides of the court at the end of the first game, at the end of the second game (if a third game is required), and in the third game when the leading score reaches 11.

3. Serving Rules in Doubles (Step-by-Step)

The serving rotation in badminton doubles is the most complex rule for beginners to grasp. Unlike tennis, there is only one serve per team. If the serving team loses the rally, the serve immediately transfers to the opposing team.

The Service Courts

A player’s service court is determined entirely by their own team’s current score, not the opponent’s score.

• Even Score (0, 2, 4, 6…): The server must stand in the Right service court.
• Odd Score (1, 3, 5, 7…): The server must stand in the Left service court.

How Rotation Works

1. Starting the Game: At the start of the game (score 0-0), the serving team’s designated server stands in the Right service court and serves diagonally to the receiver in the opponent’s Right service court. The server’s partner can stand anywhere on their side of the net, provided they do not block the receiver’s line of sight.
2. If the Serving Team Wins the Rally: The team scores a point. The same server serves again. Because their score has changed from even to odd (or vice versa), they must move to the opposite service court to serve.
3. If the Receiving Team Wins the Rally: The receiving team scores a point and gains the serve.
   • Crucial Rule: The players on the newly serving team do not change their service courts.
   • The new server will serve from the court that corresponds to their team’s new score. (e.g., If Team B’s score is now 5, the player standing in the Left court serves, because 5 is an odd number).
4. When Does the Partner Serve? A player only gets to serve when their team wins the serve back from the opponents, or if their partner loses the serve and it is their turn to serve from the alternate court. When a team loses a rally while serving, the serve passes to the opponents. When the serve is eventually won back, the player who did not make the last serve will be the one to serve first.

4. Positioning and “Unsighting” Rules

According to BWF Rule 9.1.2, during a serve, the server’s partner and the receiver’s partner may take up any position on their own side of the court.

However, there is a strict restriction: They must not unsight (block the view of) the opposing server or receiver. If a standing partner deliberately blocks the receiver’s view of the shuttle or the server’s body, the umpire will call a fault, and the serving side will lose the rally.

Tactical Rotation During a Rally

Once the serve is returned, players can move anywhere on their half of the court. Doubles positioning generally relies on two formations:

1. Attacking Formation (Side-by-Side): When a team is on the offensive (hitting downwards), both players stand side-by-side near the mid-court, covering the left and right halves to cut off angles.
2. Defensive Formation (Front-and-Back): When a team is on the defensive (lifting the shuttle to the backcourt), one player stays at the net to intercept drops and drives, while the other stays at the back to defend smashes.

5. Faults and Lets in Doubles

Understanding what constitutes a fault is vital to avoiding giving away free points.

Common Service Faults

• Height Restriction: The BWF enforces a fixed service height rule. The entire shuttle must be below 1.15 meters (3.77 feet) from the surface of the court at the exact moment it is hit by the server’s racket.
• Foot Faults: Both the server and receiver must have some part of both feet in contact with the floor in a stationary position until the serve is delivered. Neither player can step on or over the service lines.
• Continuous Motion: The forward movement of the racket must be continuous from the start of the serve until the shuttle is hit.

General Faults

• Touching the Net: A player, their racket, or their clothing touches the net or its supports while the shuttle is in play.
• Over the Net: A player strikes the shuttle on the opponent’s side of the net (unless following through after a legal strike on their own side).
• Double Hit: The shuttle is hit twice in succession by the same player, or by both players on a team consecutively.
• Out of Bounds: The shuttle lands outside the boundary lines (in doubles, the side tramlines are IN, but the area beyond the doubles long service line at the back is OUT during a serve).

The “Let”

A “let” is called by the umpire to stop play and replay the rally. Common examples include:

• The shuttle disintegrates, or the cork completely separates from the feathers during a rally.
• An unexpected distraction occurs (e.g., a shuttle from another court flies into the playing area).
• The server serves before the receiver is ready.

6. Mixed Doubles vs. Men’s/Women’s Doubles

It is a common misconception that mixed doubles has different official BWF rules than standard same-gender doubles. The rules regarding scoring, court size, serving, and faults are 100% identical.

The only difference lies in strategy and physical dynamics. In mixed doubles, teams often utilise a specialised front-back defensive formation where the male player typically covers the rear court for heavy smashes, while the female player dominates the net for rapid interceptions and drives. However, legally, both genders are bound by the exact same 1.15m service height rule and 21-point scoring system.

Read More: Badminton Singles Rules

Conclusion

Mastering badminton doubles requires more than just powerful smashes; it requires a deep understanding of the BWF rulebook. From remembering that your service court is dictated by your team’s score to ensuring you do not violate the 1.15-meter service height rule, every detail matters. By internalising these verified doubles rules, you can avoid unforced errors, execute flawless rotations, and keep your focus exactly where it belongs, on winning the rally.

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