Tennis Court Etiquette: Scoring & Line Call Rules

If you've ever walked onto a court for a casual match and realized nobody was quite sure who was supposed to call the score or make a line call, you're not alone — it trips up a lot of newer players. Tennis on TV has umpires, electronic line calling, and a clear chain of authority. Recreational tennis has none of that. This guide covers the conventions that actually govern most matches you'll play, so your first few games feel a lot less confusing.

Why Recreational Tennis Runs Differently Than What You See on TV

At the club or recreational level, there's no umpire watching your match. That means the players themselves are responsible for scoring, line calls, and keeping things fair — which is exactly why a set of etiquette conventions exists in the first place. The USTA and ITF actually publish an official guide for this called "The Code," created specifically because the standard Rules of Tennis don't cover every situation that comes up in unofficiated play. Most of what's below comes from those conventions.

Who Calls the Score?

The server calls the score. Before each point, they announce the game score (like "30–15"); before each new game, they announce the set score. If you ever lose track, just ask — "what's the score?" isn't a rookie mistake; it's standard practice, even among experienced players.

Announcing the score before you serve isn't just a formality. It keeps both players on the same page and heads off disputes before they start.

Line Calls: Whose Call Is It?

Without an umpire, the responsibility for line calls falls entirely on the players:

• You call your own side only. Each player makes calls on the half of the court closest to them, never their opponent's side.
• When in doubt, call it in. This is the golden rule of tennis etiquette: if a ball is close enough that you're genuinely not sure, the call goes in your opponent's favor.
• Make the call promptly and audibly. A quiet or delayed "out" call after you've already played a weak return isn't a fair call — it needs to come immediately, before the next shot.
• If there's a real disagreement, the standard fix at the recreational level is simple: replay the point. There's no formal appeals process without an umpire.

Let calls work a little differently — either player can call a let (for example, if a serve clips the net and lands in), and the point or serve is just replayed, no dispute involved.

Basic On-Court Conduct

A few conventions that aren't official rules but will make you look like you know what you're doing:

• Stay quiet during points. Save conversation, calls to a partner, and reactions for between points.
• Don't walk behind a live court mid-point. Wait for a natural break — a changeover or the end of a game — before crossing.
• Handle stray balls carefully. If a ball rolls onto your court from another match, wait until their point ends before returning it, and don't interrupt an ongoing point to retrieve one of your own.
• Shake hands at the net after the match, win or lose. It's one piece of tennis etiquette almost nobody skips.

Doubles-Specific Etiquette

Doubles adds a layer of coordination on top of everything above:

• Decide who serves first and who returns on which side before the set starts. Partners alternate serving turns, and each player stays on their assigned return side (deuce or ad) for the entire set.
• Split line-call responsibility. Generally, whichever partner is closer to a given line makes that call — the non-receiving partner typically helps cover calls near the center and far sideline.
• Only communicate with your partner while the ball is moving toward you. Staying quiet while it's headed toward your opponents keeps things fair.

Frequently Asked Questions

Who calls the score in tennis? The server. They announce the game score before each point and the set score before each new game.

What happens if players disagree on a line call? At the recreational level, without an umpire, the standard resolution is simply to replay the point.

Can a spectator make a line call? No. Only the players on the court make calls — a bystander's opinion isn't part of the process, even if asked.

Is it rude to question a line call? Asking a clarifying question is fine, but repeatedly challenging your opponent's calls is considered poor etiquette. If you're genuinely unsure, ask to see the mark (common on clay courts) or agree to replay the point.

Do you need an umpire for casual or club matches? No. The vast majority of recreational and club tennis is self-officiated, which is exactly why these conventions exist.

Knowing the Rules Is Half the Confidence

None of this will improve your forehand, but it'll make your first few matches a lot less confusing — and it's the kind of thing every player wishes someone had explained before their first time on court. If you're just getting started more broadly, New to Tennis? A Beginner's Guide to Getting Started covers the basics, and if there's a tournament on your calendar, Playing in Your First Tennis Tournament walks through what that day actually looks like.