The tennis score after deuce is advantage: win two points in a row from deuce to take the game under advantage scoring. In matches we recorded during January to October 2026, ATP servers won 69.7% of games that reached deuce. A tied point score still left the server winning more often in this sample.
What comes after deuce in tennis?
Deuce means the game is tied at 40-40. Whoever wins the next point gets advantage. If that player wins the following point, they win the game. If they lose it, the score returns to deuce.
At deuce, neither player has a lead within the game.
There is no fixed limit on returns to deuce under advantage scoring. Players can trade advantage until someone wins consecutive points from a tied score. The game stays open through those exchanges.
If you need the earlier scoring sequence, our guide to how tennis scores work explains points within games and sets.
What do ad-in and ad-out mean?
Ad-in means the server has advantage. Ad-out means the receiver has advantage. The words refer to who is serving, so you need that context to read the call correctly.
At ad-in, the server can finish the game by winning the next point. Losing that point sends the game back to deuce. At ad-out, the receiver can finish the game by winning the next point. The server must win it to return to deuce.
That makes ad-out a break point. The receiver is a point away from winning the server's game. Our explanation of break points and their conversion rates covers that situation in more detail.
Deuce itself isn't a break point under advantage scoring. The receiver must gain advantage before they can win the game on the following point.
How often do service games reach deuce?
We measured the following service games in matches scheduled during January to October 2026. These are Live Tennis API observations, measured as of October 31, 2026. A recorded 40-40 state was required to classify a game as reaching deuce.
| Tour | Service games (n) | Reached deuce | Server won, all sampled games | Server won after deuce |
|---|---|---|---|---|
| ATP | 52,209 | 23.9% | 74.6% | 69.7% |
| WTA | 43,773 | 28.8% | 62.9% | 60.4% |
| Challenger men | 121,117 | 26.0% | 71.9% | 66.9% |
| Challenger women | 24,766 | 29.2% | 59.4% | 56.8% |
| ITF men | 169,662 | 26.9% | 69.2% | 64.4% |
| ITF women | 163,398 | 29.7% | 57.1% | 55.0% |
Read each row across. The service-game count is the sample size for that tour. The reached-deuce percentage uses those sampled games as its denominator. The final column looks only at games where we recorded deuce.
WTA games reached deuce more often than ATP games in this sample. The same ordering appears when comparing the women's and men's Challenger rows, and again in ITF.
These game counts don't measure the share of a tour's schedule covered. Coverage is declared per match.
Is the server still favored at deuce?
The server won more often than the receiver on every tour shown. ATP servers won 69.7% after deuce, compared with 74.6% across all sampled service games. WTA servers won 60.4% after deuce, compared with 62.9% across all sampled games.
Every row shows a lower server win rate after deuce than across the full service-game sample. Games that reach deuce have already become contested. The all-games column also includes games the server finished without reaching that score.
This comparison describes game outcomes selected by their recorded score history. It doesn't establish a cause.
Nor does a tour average give you a particular player's chance of holding serve. The table pools different players and opponents. Use it to understand the observed pattern, with that limit attached.
Does no-ad scoring change what happens at deuce?
Yes. The point after deuce decides the game immediately under no-ad scoring. There is no advantage stage.
You will encounter no-ad scoring in doubles and some events. Check the event's scoring format before interpreting a tied game score. A deuce score alone doesn't tell you which rule applies.
Tiebreaks use a separate scoring format. Our tennis tiebreak rules explain what happens when games are tied.
How this was measured
These figures come from matches the API recorded, scheduled during January to October 2026, through October 29. We measured them on October 31, 2026. The table gives n by tour as service games, not matches. We included service games we watched live in 2026 with at least three recorded point states. A game 'reached deuce' when a 40-40 state was recorded. Tiebreaks were excluded. The server is the one our feed recorded.
Point-by-point coverage is declared per match. A missing deuce state can leave a game unclassified as reaching deuce even if it did on court. These percentages describe the recorded sample.
Using these numbers
Use January to October 2026 as the window when you quote a percentage. Name the tour alongside it. Attribute it to Live Tennis API's recorded service-game sample, measured October 31, 2026. Keep the sample qualification with any chart you make.
For an app, display who has advantage and who is serving. Check the scoring format before labeling game-winning opportunities.
Our point-by-point data guide explains the recorded tape and per-match coverage. Use the API reference to check the score fields when building your display.
Frequently asked questions
What is deuce in tennis?
Deuce is a tied game score of 40-40. Under advantage scoring, a player must win two consecutive points from deuce to win the game. Winning the next point gives them advantage. Losing the point after gaining advantage returns the game to deuce, so the game continues.
What is the difference between ad-in and ad-out?
Ad-in gives the advantage to the server, while ad-out gives it to the receiver. Either player can win the game by winning the point while holding advantage. At ad-out, the server faces a break point. Winning that point saves the break point and returns the score to deuce. The labels follow the server's perspective throughout the game. If you're following a score display, check which player is serving before interpreting the advantage marker.
Can a tennis game keep returning to deuce?
Yes, under advantage scoring there is no fixed cap on returns to deuce. A player gains advantage by winning a point from deuce. If the opponent wins the following point, the score is tied again. That sequence can repeat until a player wins consecutive points from deuce.
Do you always play advantage after deuce?
No. Events using no-ad scoring settle the game with a deciding point at deuce. The winner of that point wins the game immediately. This format appears in doubles and some events. Check the match's scoring format before assuming an advantage point will follow a tied game score.