Every rule club players actually argue about — explained without the BWF jargon
I have lost count of how many club nights have stopped dead for a five-minute debate about whether a serve was legal, who is supposed to serve next, or whether 20-20 means "first to 21" or "win by two."
Most rule arguments come down to the same handful of things. So instead of writing yet another copy-paste of the BWF rulebook, this is the version I wish someone had handed me on day one: every rule that actually comes up at club level, in plain English, with the bits people get wrong flagged up.
Badminton is played to 21 points per game, best of three games, using rally scoring (every rally is a point). Serve from the right court when your score is even, the left when it is odd. The shuttle must be hit below 1.15 m with the racket head pointing down and both feet on the floor. A serve that clips the net and lands in the correct court is in play — there is no service let any more.
Modern badminton uses rally scoring. Every rally produces a point, no matter who served. This sounds obvious now but the old service-only scoring (where you only scored on your own serve) was still in use as recently as 2006, and you will still meet older players who get this wrong.
The rules:
⚠️ The myth that will not die: "You have to win the rally on your own serve to score." Not since 2006. Every rally is a point. If you hear someone insist on the old rule at club, send them this article.
Service is the most-disputed area of the game, and rightly so — there are five separate conditions that all have to be true for a serve to be legal.
This is the rule that beginners (and a surprising number of intermediates) get wrong every single week.
The receiver stands diagonally opposite. It is the same rule in singles and doubles — what changes in doubles is which player serves and receives, not where they stand.
At the exact moment the racket touches the shuttle, the whole shuttle must be below 1.15 m above the court surface. That is about waist height for most adults. The BWF measures it from the floor, not from the player's body, which matters for tall players.
You may not strike the shuttle on its side with the racket angled to gain height. The racket head must be pointing distinctly downward at contact.
This is the rule that killed the old "tomahawk" forehand flick serve. If any part of the racket head is higher than any part of your hand holding the racket at the moment of contact, it is a fault.
Both feet must remain in contact with the court from the moment you start the service motion until the racket strikes the shuttle. You cannot step, hop, jump, or lift a heel. The feet must also be inside the service court — touching a line counts as outside.
Once you start the forward swing, you must hit the shuttle. You cannot pause, double-tap, or "fake" the serve to bait the receiver. The receiver also has to stay still until you strike — they cannot creep forward.
💡 The serve test at club: If somebody complains about your serve, look at three things first — is your racket head down, are your feet still, and is the shuttle below your belt at contact? If all three are yes, you are almost certainly legal.
Doubles and singles use different service courts, which is the second-biggest source of confusion at clubs.
| Format | Service court is... | Receiver's court |
|---|---|---|
| Singles | Long and narrow — full length back to the back boundary, but only the inner singles sideline. | Diagonally opposite, same shape. |
| Doubles | Short and wide — only as deep as the back doubles service line (the inner back line), but the full doubles sideline width. | Diagonally opposite, same shape. |
The rally after the serve uses the full court (singles uses singles lines, doubles uses doubles lines). The smaller service court rule only applies to the serve itself and where the receiver is allowed to stand.
Modern doubles uses a much simpler service rotation than the old "two serves per side" system, but it still trips people up.
The mental shortcut: the server moves, the receivers do not. If you keep that one rule in your head you will be right 95% of the time.
⚠️ Classic club mistake: A team wins a rally, both partners swap sides. Then they argue for two minutes about who serves next. You only swap if you were the serving side — and only the server moves. If you were receiving, both of you stand still.
The rulebook lists about 14 ways to commit a fault. Half of them never happen below international level. Here are the ones you will see this week:
A fault ends the rally and gives the point to the other side. A let simply replays the rally — nobody scores, the same player serves again.
Lets are rare. The main ones:
The big one people get wrong: a serve that clips the net cord and lands in the correct service court is in play. There is no "service let" any more. If the shuttle goes over and lands in, you continue. Many casual clubs still play the old service-let rule by habit — fine if everyone agrees, just know it is not the official rule.
Mixed doubles uses the same rules as level doubles. The only thing that changes is the convention (not a rule) of who covers which area — typically the woman plays the front court and the man plays the back during attacks. The rulebook does not require this; it is a tactical choice.
If you want the full positioning breakdown — when to be front-back, when to be side-by-side, and how to rotate without crashing into your partner — that is its own topic. See our companion guide on doubles formations and rotation.
If you remember only four things from this guide, make it these:
Get those four right and you will end 90% of the rule arguments at your club before they start. The rest — the obscure faults, the umpire signals, the BWF tournament-only stuff — you can look up the one time it ever comes up.
If you are completely new to badminton and want a friendlier place to start, our guide on how to choose your first racket and the racket quiz are good next steps. For service technique itself, see badminton serve techniques.
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