Official BWF Rules

How to Umpire a Badminton Match — Beginner Guide

Umpiring a badminton match for the first time can feel overwhelming, but the role is straightforward once you know the key calls, the score announcement format, and what faults to watch for. This guide covers everything a first-time umpire needs.

Role of the Umpire

The umpire is the match official responsible for:

  • Keeping score and announcing it after every rally.
  • Calling service faults when the serve breaks the rules.
  • Calling "fault," "let," "in," or "out" during rallies.
  • Managing intervals, side changes, and match flow.
  • Recording the result on the scoresheet.

In international matches, the umpire sits on a raised chair at the net post. In club and local tournaments, the umpire typically stands or sits courtside.

Pre-Match Setup

1. Conduct the toss

Flip a coin or spin a racket. The winner chooses to serve, receive, or pick a side. The loser gets the remaining choice.

2. Record player names

Write the server's name on the right side of the scoresheet (server always starts from the right at 0-0). In doubles, record both players per side.

3. Check the court

Confirm the net height (1.55 m at edges, 1.524 m at center), shuttles are approved, and players are ready.

4. Announce the match

"Ladies and gentlemen, on my right [name/team], on my left [name/team]. [Right side] to serve. Love all, play."

Calling the Score

The score calling format in badminton follows a specific convention:

Always call the server's score first, then the receiver's score.

SituationUmpire Says
Start of game"Love all, play"
Server scores (now 3-1)"3-1"
Receiver scores, serve changes (now 3-2)"Service over. 2-3"
Scores tied at 5"5 all"
Game point (server at 20-18)"Game point, 20-18"
Match point"Match point, 20-18"
Deuce at 20-20"20 all"
Game ends"Game. Won by [name/team], 21-18"
Interval at 11"11-8, interval"

"Service over" is announced whenever the serve changes hands. After saying "service over," the new server's score is called first.

Service Faults to Watch

The serve is the most closely officiated part of badminton. Watch for:

  • Contact above 1.15 m: The shuttle must be struck below 1.15 metres from the court surface (or below the waist at club level).
  • Racket head above hand: The entire racket head must be below the server's racket hand at the moment of contact.
  • Feet not stationary: Both feet must stay in contact with the floor until the shuttle is struck. No stepping, sliding, or heel lifting.
  • Non-continuous motion: Once the forward swing begins, it must be continuous. Any pause or feint is a fault.
  • Wrong court: Check the server's score against the court position. Even = right, odd = left.

For a complete list of service faults, see the faults guide.

In-Play Calls

"Fault"

Called when a rule violation occurs during the rally (net touch, shuttle hit twice, shuttle caught on racket). The point goes to the other side.

"Let"

Called when the rally must be replayed with no point awarded. Reasons: shuttle breaks mid-rally, external disturbance, receiver not ready on a serve.

"Out"

Called when the shuttle lands outside the court boundaries. The point goes to the other side.

"In" (or no call)

If the shuttle lands on or inside the line, it is in. Many umpires simply do not make a call for 'in' -- silence means the shot was good.

Intervals and Side Changes

60-second interval at 11 points

When the leading player first reaches 11, announce the score followed by "interval." Players may leave the court, receive coaching, towel down, and drink. Call "[score], play" after 60 seconds.

120-second interval between games

After each game ends, players have 120 seconds before the next game begins. Announce "first game won by [name], [score]. Second game, [server] to serve. Are you ready?"

Side changes

Players change ends after each game. In the deciding game (third game), players also change ends when the leading score reaches 11.

Tips for New Umpires

  • Use a scoresheet. Tracking score in your head is error-prone, especially in doubles with serve rotation. Print a scoresheet or use an app.
  • Call confidently. Even if you are unsure about a line call, commit to your decision. Hesitation undermines authority and confuses players.
  • Watch the serve closely. Position yourself where you can see the server's racket and feet simultaneously. Service faults are the most common calls you will need to make.
  • Know when to call a let. If you genuinely cannot tell whether a shuttle was in or out, a let is the fairest outcome. Do not guess.
  • Stay neutral. Do not react to good shots, bad luck, or player complaints. Maintain a calm, professional demeanour throughout.

Related Guides

Frequently Asked Questions

Do you need qualifications to umpire badminton?

For club matches and local tournaments, no formal qualification is required -- anyone who knows the rules can umpire. For regional and national events, BWF member associations offer umpire certification courses. International tournaments require BWF-accredited umpires.

What do you say when calling the score?

Always call the server's score first, then the receiver's score. For example, if the server has 5 and the receiver has 3, say '5-3.' When the serve changes hands, say 'Service over' then call the new server's score first.

What is the difference between an umpire and a line judge?

The umpire is the main official who calls the score, enforces rules, and manages the match. Line judges are positioned at the court boundaries and only signal whether a shuttle landed in or out. The umpire can overrule a line judge if they are certain the call was wrong.

What should I do if I am unsure about a call?

If you genuinely cannot tell whether a shuttle was in or out, call a let and replay the rally. For service faults, only call what you clearly see. It is better to miss a marginal fault than to make an incorrect call that decides the match.

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