Here is tennis scoring explained in one line: you win points to win games, games to win sets, and sets to win the match. A game runs love (0), 15, 30, 40, then game point, and you must win it by two clear points. A set goes to the first player to six games with a two-game lead, with a tiebreak deciding most sets that reach 6-6.
That is the core of it. The rest of this guide gets into the details: deuce, tiebreaks, serving, lets, electronic line calling and how the four Grand Slams differ.
In this guide
Tennis Scoring Explained: Points in a Game
Tennis does not count points 1, 2, 3. Instead, each game uses its own vocabulary, and the server’s score is always called first.
| Points won | What the umpire calls |
|---|---|
| 0 | Love |
| 1 | 15 |
| 2 | 30 |
| 3 | 40 |
| 4 (with a two-point lead) | Game |
So if the server has won two points and the receiver one, the score is “30-15”. When both players have the same score below 40, the umpire says “all”, as in “15-all” or “30-all”. A game won without the opponent scoring a point is a “love game”.
A few other terms you will hear constantly:
- Game point: the player in front needs one more point to win the game.
- Break point: the receiver is one point from winning the server’s game.
- Break of serve: the receiver wins the game, usually the key moment in a set.
- Hold: the server wins their own service game.
Deuce and Advantage
When both players reach 40, the score is deuce. From there, someone must win two consecutive points to take the game.
- Win the next point and you have advantage (“advantage server” or “advantage receiver”).
- Win the point after that and you win the game.
- Lose it and the score returns to deuce.
There is no limit on how many times a game can go back to deuce, which is why a single game can sometimes last 15 minutes or more. Any honest take on tennis scoring explained for beginners has to stress this: games, sets and matches all need a two-point or two-game margin, except where a tiebreak or deciding point steps in.
Games and Sets
The next layer of tennis scoring explained is the set. A set is won by the first player to win six games with a lead of at least two. Scores such as 6-4, 6-3 and 6-0 are straightforward. If the score reaches 5-5, the set continues: 7-5 wins it, but 6-6 usually triggers a tiebreak.
Players serve alternate games for the whole match, and they change ends after the first game of each set and then after every odd-numbered game (the first, third, fifth and so on). That rhythm is worth knowing, because a break of serve only matters if the player then holds their own serve to stay ahead.
How Tiebreaks Work
The tiebreak was introduced to stop sets running on indefinitely. With the rest of tennis scoring explained above, this is the part that confuses new fans most, because the points are counted differently.
The standard 7-point tiebreak
- Points are counted normally: 1, 2, 3 and so on.
- The first player to seven points with a two-point lead wins the tiebreak and the set 7-6.
- The player due to serve takes the first point; after that, each player serves two points in turn.
- Players change ends after every six points.
- The player who received first in the tiebreak serves first in the next set.
If it reaches 6-6 in the tiebreak, play continues until someone is two points ahead, which is how you get scores like 7-6 (12-10).
The 10-point final-set tiebreak at the Grand Slams
Until 2022, the four majors each handled the deciding set differently. The Australian Open already used a 10-point tiebreak, the US Open played a standard tiebreak at 6-6, Wimbledon used a tiebreak at 12-12, and the French Open had no final-set tiebreak at all.
In March 2022, the Grand Slam Board announced a common rule for all four: if the final set reaches 6-6, a 10-point tiebreak is played. The first player to 10 points with a two-point lead wins the match. It applies to singles and doubles, men’s and women’s events, and remains the format at the majors today.
Match tiebreaks in doubles
On the ATP and WTA doubles tours, a 10-point “match tiebreak” usually replaces a full third set when the match is level at one set all. It uses the same rules as the final-set tiebreak at the majors.
Best-of-Three vs Best-of-Five
Match length completes the picture of tennis scoring explained at professional level. Most matches are best of three sets: the first player to win two sets wins the match. This covers women’s singles at every tournament and men’s singles on the regular ATP Tour.
At the four Grand Slams, men’s singles is played over best of five sets, so the winner needs three. That is why men’s major matches can run for four or five hours, and why fitness and recovery matter so much. If endurance interests you, our speed and agility drills break down the footwork that elite players train.
No-Ad Scoring
No guide to tennis scoring explained is complete without no-ad scoring, a variation that removes the advantage stage. At deuce (40-40), the next point decides the game, often called a “deciding point”. The receiver chooses which side to receive from; in doubles, the receiving team decides.
No-ad scoring is standard in ATP and WTA doubles and common in US college and recreational play, because it makes match lengths more predictable. You will not see it in Grand Slam singles, where traditional deuce and advantage still apply.
Serve Rules and Faults
Every point starts with a serve, and the rules are stricter than they look. With tennis scoring explained, serving is the next thing to learn, because holding serve is the foundation of winning sets.
Where to serve
The server stands behind the baseline and must hit the ball diagonally into the opponent’s service box. The first point of every game is served from the right side (the deuce court), and the server then alternates sides after each point.
Faults and double faults
You get two attempts to land a serve in. A miss is a fault. Miss both and it is a double fault, which gives the point to your opponent. Players often hit a big first serve and a safer, spin-heavy second serve for this reason.
Foot faults
If the server’s foot touches the baseline or the court inside it before hitting the ball, it is a foot fault, which counts as a fault. Walking or running into the serve is not allowed either.
What Is a Let?
A let means the point is replayed. The most common case is a serve that clips the net cord and still lands in the correct service box: the server gets that serve again, with no penalty. A serve that clips the net and lands outside the box is simply a fault.
Umpires can also call a let when something interrupts play, such as a ball rolling onto the court from a neighbouring match. During a rally, however, a ball that touches the net and drops over is in play, and you just have to chase it.
Hawk-Eye and Electronic Line Calling
For years, players could challenge line calls using Hawk-Eye ball-tracking replays, with a limited number of incorrect challenges allowed per set. That system is being replaced by fully automated electronic line calling (ELC), where cameras make the in or out call live and an automated voice announces it.
- Australian Open and US Open: both have used electronic line calling for several years.
- Wimbledon: replaced human line judges with electronic line calling from the 2025 Championships.
- ATP Tour: adopted electronic line calling across its events from 2025.
- Roland Garros: still uses human line judges, with the chair umpire inspecting ball marks on the clay. Organisers confirmed they were keeping line judges for 2026.
The rules themselves, published by the International Tennis Federation, allow tournaments to choose their officiating systems, which is why practice varies between events.
The Four Grand Slams
The majors are the best place to see tennis scoring explained in action, and each has its own surface and character. Surface affects ball speed and bounce, so results can vary a lot between them.
| Tournament | Location | Surface | Usual timing |
|---|---|---|---|
| Australian Open | Melbourne, Australia | Hard court | January |
| French Open (Roland Garros) | Paris, France | Clay | Late May to early June |
| Wimbledon | London, United Kingdom | Grass | Late June to July |
| US Open | New York, United States | Hard court | Late August to September |
Clay is the slowest surface, rewarding patience and heavy topspin, while grass is the quickest and favours big serves. Plan your viewing year with our major sporting events calendar for 2027, and if you are learning another sport’s quirks, try our guide to cricket formats: Test vs ODI vs T20.
Frequently Asked Questions
Why does tennis scoring go 15, 30, 40?
Nobody knows for certain. Popular theories link the numbers to a clock face moved in quarters, with 45 later shortened to 40, but historians have never confirmed any single explanation. What matters for viewers is simply the order: love, 15, 30, 40, then game, with deuce at 40-40.
What does “love” mean in tennis?
Love means zero. A score of “15-love” means the server has won one point and the receiver none. A “love game” is a game won without dropping a point, and a “love set” is a 6-0 set. The origin of the word is debated, so treat any confident explanation with caution.
How does a tiebreak work in tennis?
At 6-6 in a set, players contest a tiebreak counted 1, 2, 3. The first to seven points with a two-point lead wins the set 7-6. Serve alternates every two points after the first, and players change ends every six points. Final sets at Grand Slams use a 10-point version.
Is tennis scoring explained differently for doubles?
The basic system is identical: love, 15, 30, 40, deuce and sets of six games. The main differences on the pro tours are no-ad scoring, with a deciding point at deuce, and a 10-point match tiebreak instead of a third set. The wider doubles court also comes into play.
How many sets are in a Grand Slam match?
Men’s singles matches at the four Grand Slams are best of five sets, so the winner needs three. Women’s singles are best of three sets, needing two. In every case, a deciding set that reaches 6-6 is settled by a 10-point tiebreak, a rule shared across all four majors since 2022.
Key Takeaways
Here is tennis scoring explained in four quick points:
- Points go love, 15, 30, 40, game, and you must win by two.
- Sets go to six games with a two-game lead, with a tiebreak at 6-6.
- All four Grand Slams settle deciding sets with a 10-point tiebreak at 6-6.
- Electronic line calling is now standard at most top events, with Roland Garros the notable exception.
