Tennis
scoring
explained
Server first
The receiver leads this game. Winning the next point takes it; losing the point brings deuce.
Learn how tennis scoring, serving and tiebreaks work, with the 2026 rules for doubles, Grand Slam deciding sets and wheelchair tennis.
A tennis scoreboard can display three different kinds of numbers at once. One column records sets already finished, another shows games in the current set, and the live score tracks points won in the current game. The quickest way to understand a match is to separate those layers. A player can lead the current game while trailing the set, or lose a set heavily and still win the match. There is no running total in which every rally has equal weight at the finish.
The 2026 International Tennis Federation Rules of Tennis provide the foundation, but they also approve alternative scoring systems. A competition chooses its format in advance. That distinction matters most when a scoreboard reaches 6–6, when doubles arrives at deuce, or when a contest is level at one set each. This guide explains the standard rules first, then the variations a viewer or new player needs to recognize.
Read the game before reading the match
In a standard game, zero is called love. The first, second and third points won are shown as 15, 30 and 40. A fourth point wins the game if the opponent has won no more than two points. The numbers are labels, not quantities to add: a score of 40–15 means three points to one, not a 25-point lead. During an ordinary game, the server’s score is called first. If you are receiving at 30–40, you are the player one point away from the game.
At three points each, the score becomes deuce. Whoever wins the next point has advantage. Winning the following point ends the game; losing it returns the score to deuce. The game therefore has no fixed maximum length. After deuce, a player must win two consecutive points to finish it. A broadcast may show “AD”; informal players may call the server’s advantage “ad-in” and the receiver’s “ad-out.”
A game point is an opportunity to win the game on the next point. A break point is specifically a game point for the receiver. At 0–40, the receiver has three consecutive opportunities before the score can return to deuce. Winning one of them breaks serve, meaning the receiver wins the server’s game. Holding serve means winning your own service game. A hold or break does not carry extra points: both add one game to the set score. Their significance comes from who was serving.
Six games, a two-game margin and the deciding set
In a standard tiebreak set, the target is six games with a margin of two. Scores such as 6–0, 6–3 and 6–4 finish a set. At 5–5, another game produces 6–5, which is not enough; the next game can make it 7–5 or 6–6. At 6–6, the prescribed tiebreak decides the set. An advantage set uses the same six-game, two-game requirement but continues beyond 6–6 without that tiebreak. The ITF recognizes both systems, so the event format must be checked rather than inferred from the sport’s name.
A best-of-three match ends when one player or team wins two sets. Best-of-five requires three. “Best of” describes the maximum number, not the number that must be played. A straight-sets win can be 6–4, 6–2 in best-of-three, or three completed sets in best-of-five. The 2026 Grand Slam rulebook specifies best-of-five for men’s singles main-draw matches. It sets best-of-three as the general rule for other matches while allowing each Slam to determine otherwise. That qualification matters for particular doubles and junior draws.
Sets also explain why the overall point count can be misleading. Imagine a best-of-three match ending 0–6, 6–4, 6–4. The winner took only 12 games to the opponent’s 14, but won two sets. Tennis rewards winning the required units in sequence. A player’s total points won may help describe performance, yet it does not replace the match score. When a commentator says a point is a set point or match point, winning that next point would complete the required set or the match itself.
Which lines count, and why the doubles alley changes
The full-length court is 78 feet, or 23.77 metres, from baseline to baseline. Singles uses a width of 27 feet, or 8.23 metres. Doubles expands that width to 36 feet, or 10.97 metres, bringing the side alleys into play during rallies. The narrower singles sidelines still define the service boxes, so a doubles serve cannot land in an alley simply because doubles uses a wider court. Court length is unchanged. The service lines sit 21 feet, or 6.40 metres, from the net on each side.
A ball touching a relevant boundary line counts as in. A serve clipping the outside edge of the correct service-box line is therefore good. A rally ball touching the baseline is also good, provided it lands within the applicable singles or doubles sidelines. “On the line” is not a separate category between in and out. Equally, the appropriate boundary depends on the shot: the service box for the serve, then the full singles or doubles court once the return starts the rally.
The receiver may stand inside or outside the court’s painted boundaries on their own side of the net. Standing behind the baseline does not make a return illegal. Once a rally is underway, a player may volley before the bounce or hit after the permitted bounce, but the serve itself must bounce before it is returned. Catching an apparently long serve in the hand is not a way to declare it out: touching a ball before it bounces can lose the point. Let the bounce establish where it landed.
Follow the serve diagonally
A standard service game begins from behind the right half of the baseline. The serve must cross the net and land in the diagonally opposite service court. The next point starts from the left half, then the sides alternate again. These are commonly called the deuce and advantage sides. The server remains the server for the whole ordinary game; the players exchange serving duties at the next game. The changing side within a game is separate from the change of server between games.
In standing tennis, the server begins at rest with both feet behind the baseline and between the imaginary extensions of the centre mark and the relevant sideline. During the service motion, touching the baseline or court with either foot is a foot fault. Crossing the centre-mark extension or the outside sideline limit is also prohibited. Jumping to strike the ball is permitted. For singles, a server cannot begin behind the doubles alley; doubles allows the wider serving position, but still requires the ball to land in the same diagonally opposite service box.
The first fault gives the server a second attempt from the same side. Two consecutive service faults lose the point, commonly called a double fault. Missing the ball while trying to strike a serve is a fault; tossing it and deciding not to swing is not. A legal serve need not be an overhead power shot, because the rules do not prescribe that style. The receiver must be ready, and must also keep a reasonable pace with the server. Attempting the return is treated as being ready.
A net cord can mean replay, continuation or a lost point
Under the standard service-let rule, a serve that touches the net, strap or band and is otherwise good is replayed. It does not use up that service attempt. If a first serve faults and the second serve clips the net before landing correctly, the server repeats the second serve, not the first. A net-touching serve that lands outside the proper service court is a fault. Some approved competition formats use a no-let alternative, so a spectator should check the event rules rather than assume every net cord stops play.
During an ordinary rally, a ball may clip the net and continue into the correct court. That is normally a live ball, not a reason to replay the point. The player has to react to the shorter bounce. Touching the net with the body, clothing or racket while the ball is still in play is different and loses the point. A player cannot reach across and strike a ball before it has crossed the net, although following through over the net after legal contact is allowed if the other requirements are met.
A separate interruption can produce a let that replays the entire point. The ITF gives the example of another ball rolling onto court during a rally: if a let is called, the server receives a first serve again even if the original point began with a second serve. That whole-point restart is different from a service let. Keeping the two situations separate explains why the same word can lead to different serving instructions.
The seven-point tiebreak and its service order
The standard tiebreak replaces the love–15–30–40 sequence with ordinary numbers. The first player or team to reach seven points with a two-point lead wins it. Thus 7–4 finishes the tiebreak, while 7–6 does not. At 6–6, someone must win two points clear; the finish might be 8–6, 10–8 or higher. The completed set is recorded as 7–6 in games. Additional small numbers or bracketed scores may describe the tiebreak, and the display’s convention should be checked rather than treating those figures as extra games.
The player due to serve next at 6–6 serves the first tiebreak point from the right side. The opponent serves the next two, starting from the left. Service then alternates in pairs, with each individual point still switching between the left and right service positions. Label the first server A and the other player B: point one belongs to A, points two and three to B, points four and five to A, and points six and seven to B. This one-then-two pattern avoids giving one player an entire service game to settle the set.
Under the standard change-of-ends rule, players switch ends after every six tiebreak points. That means after 4–2, 3–3 or 5–1, because six points have been played in each case. They do not wait for either player to reach six. The ITF also permits an alternative change-of-ends procedure, making the competition instructions relevant here too. Whoever served first in the tiebreak receives in the first game of the following set, if another set is needed.
Ten points can describe two different endings
A final-set tiebreak and a match tiebreak are easily confused because either may have a ten-point target. At the Grand Slams, the deciding-set tiebreak in singles begins at 6–6 in the final set. The players first play the twelve games needed to get there; the tiebreak then requires ten points and a two-point margin. A 10–8 finish ends it, but 10–9 does not. Reaching seven points does not end this longer breaker. The 2026 ITF rules explicitly describe this final-set option, alongside the Grand Slam rulebook’s ten-point provision.
A match tiebreak replacing the final set is a different structure. When the match is level at one set each in best-of-three, the specified match tiebreak begins instead of playing an ordinary third set. There is no wait for six games all because that set’s games are not played. The ITF approves seven-point and ten-point match-tiebreak alternatives, each requiring a two-point margin. A ten-point match tiebreak is familiar in many doubles formats, but “doubles” alone does not tell you which method an event uses.
For a match tiebreak, the existing sequence of serving teams continues. In doubles, however, each team may alter its internal serving and receiving order as it can at the beginning of a new set. The ITF specifies a 120-second set break beforehand and says a scheduled ball change should not occur immediately before the match tiebreak. A bracketed result such as [10–7] often signals a deciding match tiebreak in a results list. Read the draw’s scoring format to confirm what the notation represents.
Doubles adds a partner, not alternating hits
A doubles team chooses which partner serves its first service game of the set. The opponents choose their first server for the next game. Then the first team’s other partner serves game three, followed by the second team’s other partner in game four. That four-player rotation continues through the set, including the service sequence in a tiebreak. A team cannot simply give every important service game to its stronger server. Choosing a new internal order at the beginning of a set is different from changing it halfway through.
The receiving team also chooses who receives the first point of its first return game. The other partner receives the second point, and that pattern continues for the set. It assigns the two partners to different receiving sides for the serve. After the return, either partner can play the next shot: tennis doubles does not require teammates to alternate hits. A net player may intercept a ball aimed across the court, commonly called poaching. That movement is a tactical choice within the point, not a change in the designated receiver of the serve.
No-ad scoring changes deuce, not every game
The ITF’s approved no-ad method keeps love, 15, 30 and 40. Its difference appears at deuce: one deciding point finishes the game, with no advantage exchange. The receivers choose whether to take that serve from the right or left half of the court. In doubles, they cannot swap their established receiving positions to put a preferred returner on the chosen side. In mixed doubles, the rule specifies that the receiver of the deciding point is the same gender as the server.
At deuce in no-ad scoring, the next point is therefore both game point for the server and break point for the receiver. A scoreboard showing a deciding-point symbol is not necessarily missing an advantage column. Nor does a quick doubles game prove that a tiebreak is underway. No-ad changes how an ordinary game ends; a match tiebreak changes how the final set is replaced. The two choices can appear together, but they answer different questions and should be checked separately in the event’s published format.
Wheelchair tennis keeps the score but allows two bounces
Wheelchair tennis uses the ITF Rules of Tennis with specified exceptions. The most visible is the two-bounce rule: the player may return the ball after either the first or second bounce, but must do so before a third. The first bounce must still meet the ordinary court requirement. The second may be inside or outside the court boundaries. A player chasing a ball beyond the baseline after its first legal bounce is therefore not automatically too late, and taking the ball early remains an option.
The wheelchair is treated as part of the player’s body for the applicable rules. The service has its own movement provision: the server begins stationary and may make one push before striking the ball. During delivery, the wheels must stay within the permitted area behind the baseline and between the extended centre mark and sideline. The rules also contain specific provisions for quad players unable to serve conventionally. These adaptations do not turn the match into a different scoring system: game, set and tiebreak formats still follow the applicable competition rules.
When a wheelchair player competes with or against a standing player in singles or doubles, the bounce allowance belongs to the player. The wheelchair player may use two bounces; the standing player may use only one. It is not a two-bounce rule for everyone on that court.
What to check before the next point
Three observations resolve most scoreboard confusion. First, find who is serving; a dot, ball icon or other broadcast mark may identify that player, but graphics differ. Second, separate completed sets from games in the current set and the live point score. Third, check the announced deciding-set format. A display reading 6–6 could be about to start a seven-point tiebreak, a ten-point final-set breaker, or more games in an advantage set. A match level at one set each might instead proceed directly to a match tiebreak.
For a first recreational match, agree the format before starting: advantage or no-ad games, the number of sets, the tiebreak target, and whether a match tiebreak replaces the last set. Call the ordinary game score with the server first and keep a separate count of games. These small habits prevent a scoring disagreement from becoming a rules argument. Once the layers are clear, the scoreboard becomes a useful account of pressure: who can hold, who can break, and which next point would finish the larger contest.
Official sources
International Tennis Federation, Grand Slam Rulebook 2026, section I.L, Number of Sets, Tie-break
United States Tennis Association, Tennis Scoring: Points, Sets and Games
Comments
Post a Comment