Tennis Rules Made Simple
Tennis scoring makes no logical sense — 15, 30, 40, deuce? — but once it clicks, you'll never forget it. This guide covers every rule you need to play your first match without embarrassing yourself. Which, let's be honest, is the real goal.
The Scoring System (Yes, It's Weird)
Tennis uses a nested scoring system: points → games → sets → match. Think of it like minutes inside hours inside days. Here's how each layer works:
Points Within a Game
Instead of 1, 2, 3, 4 — tennis uses 0, 15, 30, 40. Nobody knows exactly why (the clock-face theory is the most popular explanation, but historians argue about it). The server's score is always called first.
| Points Won | Score Called | Example (Server vs Returner) |
|---|---|---|
| 0 | Love (zero) | "Love-all" at game start |
| 1 | 15 | "15-love" (server won first point) |
| 2 | 30 | "30-15" (server leads 2 points to 1) |
| 3 | 40 | "40-30" (server one point from winning) |
| 4 (if leading by 2+) | Game | "Game, server" |
Deuce and Advantage
When both players reach 40 (three points each), it's called deuce. From deuce, you must win two consecutive points. Win the first point after deuce and you have advantage. Win the next point too and you take the game. Lose the advantage point and it goes back to deuce. This can theoretically go on forever — the longest recorded game had 37 deuces.
Games, Sets, and the Match
Win 6 games (with a 2-game lead) to win a set. Win 2 sets to win a match (best of 3 — used in most recreational and women's professional play). Men's Grand Slams use best of 5 sets. If the set reaches 6-6, a tiebreak is played: first to 7 points, must win by 2, and you alternate serves every 2 points.
Serving Rules
The serve starts every point. Get it wrong and you lose the point before it begins.
Where to Stand
Behind the baseline, between the centre mark and the singles sideline. For the first point of every game, stand to the right of the centre mark. Alternate sides after each point.
Two Chances
You get two attempts. Miss both (double fault) and your opponent wins the point. A "miss" means the ball hits the net without going over, lands outside the correct service box, or you swing and miss entirely.
The Correct Box
The serve must land in the diagonally opposite service box. From the right side (deuce court), you serve into the opponent's left service box. From the left side (ad court), you serve into their right service box.
Let Serves
If the ball clips the net cord but still lands in the correct box, it's a "let" — you replay that serve without penalty. There's no limit to consecutive lets (the record is reportedly 7 in a row at a professional match).
Foot Faults
Your feet must not touch the baseline or cross the centre mark before you hit the ball. In professional tennis, a foot fault is treated the same as a missed serve. In social tennis, most people don't call them — but technically, they should.
Singles vs Doubles: The Court Lines
The tennis court has two sets of sidelines — the inner ones (singles) and the outer ones (doubles). In singles, only the inner sidelines are in. In doubles, the wider court is used, including the alleys (the strips between the inner and outer lines). Both formats use the full length of the court.
The service boxes are the same in both formats — the alleys don't apply on serves. So even in doubles, the serve must land inside the regular service box.
Confusing Situations Explained
These are the moments that cause arguments at every public court in Australia. Now you'll know the actual answer.
| Situation | What Happens |
|---|---|
| Ball hits the net and goes over (during rally) | Play continues. It's a legal shot — nets don't count in rallies, only on serves. |
| Ball hits the line | The ball is IN. Any part of the ball touching any part of the line counts as in. |
| Ball bounces twice before you hit it | You lose the point. The ball must be struck before the second bounce. |
| Ball hits you (not your racket) | You lose the point — even if the ball was going out. Yes, even if it hits your shoe. |
| You hit the ball before it crosses the net | You lose the point. You cannot reach over the net to hit the ball. (Exception: if the wind or spin brings the ball back to your side, you may reach over.) |
| Your racket crosses the net after your swing | Legal, as long as you hit the ball on your side first. Follow-through over the net is fine. |
| Ball hits the net post and lands in | The point continues. Around-the-net-post shots are legal — and extremely satisfying. |
| You drop your racket during a shot | If the racket was in your hand when it contacted the ball, the shot counts. If you threw the racket at the ball, you lose the point. |
Rules People Get Wrong
These misconceptions cause more social tennis arguments than anything else. Memorise them and you'll be the most informed player at your local courts.
"The server must wait until the receiver is ready"
Technically, the receiver must play at the server's pace — but in practice, holding up your hand to signal "not ready" is universal etiquette and the server should wait.
"You can call a ball out after you've hit it back"
In social tennis (self-officiated), you should make the call immediately. But yes, you can correct a call if you realise you were wrong. Integrity matters more than strict timing.
"If the ball hits the line, it's out"
No! On the line = IN. This is the single most argued rule in recreational tennis. The ball only needs to touch any part of the line to be good.
"You get one serve in doubles and two in singles"
You always get two serves, in both singles and doubles. The rules are identical for serving.
Etiquette: Not Rules, But They Matter
Tennis has unwritten rules that most players take seriously. Break them and you won't get invited back for social hits. For the full rundown, see our court etiquette guide, but here are the essentials:
- Wait for a break in play before walking behind another court
- Return stray balls promptly — roll them back to the nearest player, don't throw them
- Call your own lines honestly — if in doubt, the ball is in
- Don't celebrate an opponent's error — a quiet "lucky" or nothing at all
- Shake hands at the net when the match is over, regardless of result
For a deeper dive into scoring mechanics, including tiebreak scoring and no-ad scoring formats, check out our tennis scoring explained guide.
What Gear Do You Need to Start?
The rules don't specify equipment requirements beyond a racket and a ball — but showing up in the right gear makes everything easier. Our beginner gear guide covers exactly what you need (and what you can skip). At minimum: a racket, a can of balls, proper tennis shoes (not runners), and a cooling towel if you're playing in Australian conditions.
Ready to play your first match?
Get equipped with everything a beginner needs — from practice balls to headbands to keep the sweat out of your eyes.