A match at the Australian Open can be over in two sets or stretch through five, but the scoring rules are easier to follow once you know where the tiebreaks fit. The key difference is singles: men play best of five sets, while women play best of three. Both formats use a 10-point tiebreak if the final set reaches 6-6.
How singles matches are decided
“Best of five” means a player must win three sets to take the match. A men’s match can therefore finish in three, four or five sets. In women’s singles, “best of three” means the first player to win two sets advances, so a match lasts two or three sets.
| Event | Sets needed to win | Longest possible match |
|---|---|---|
| Men’s singles | 3 | 5 sets |
| Women’s singles | 2 | 3 sets |
Best of five does not mean every men’s match goes five sets. A straight-sets win might end 6-3, 6-4, 6-4; a closer contest could go the distance. The same principle applies to women’s matches, which can finish in two sets or require a deciding third.
Games, sets and tiebreaks
Each set is usually won by the first player to take six games, with a lead of at least two. So 6-4 wins the set, but 6-5 does not: the set continues until someone leads by two games or the players reach 6-6.
At 6-6, a standard seven-point tiebreak decides the set. The first player to reach at least seven points with a two-point cushion wins it. If the score reaches 6-6 in the tiebreak, play continues until one player gets two points ahead. The set is recorded as 7-6, with the tiebreak score often shown in brackets—for example, 7-6 (7-4).
The final set has a different finish. If it reaches 6-6, the players play a match tiebreak: first to at least 10 points, again by two. This rule applies to the deciding set in both men’s and women’s singles. A final-set tiebreak might end 10-8, 12-10 or even later if neither player can pull clear.
That means a match can finish after a deciding tiebreak without either player winning the final set by two full games. The set is shown as 7-6, with the extended tiebreak score sometimes added to make the finish clearer.
How points and service work
Within a game, points are counted as 0, 15, 30 and 40. A player needs four points and a two-point lead to win the game. At 40-40, called deuce, the next point gives a player advantage; they must then win the following point to take the game. If they lose it, the score returns to deuce.
Players take turns serving games. In a tiebreak, the first server serves one point, then the other player serves two, and service continues in two-point turns. Players switch ends after every six points. Those details matter most when a tiebreak is tight: a small service or return error can quickly change who has the advantage.
What the final-set rule changes
Before the 10-point final-set tiebreak became part of the Australian Open format, a deciding set could continue as long as it took for a player to lead by two games. The new finish puts a limit on how long the match can keep going, while still requiring a two-point margin in the tiebreak itself.
It does not make a long match short by definition. A 10-point tiebreak can run well beyond 10 points, and the sets before it may already have tested both players. But it prevents a final set from continuing indefinitely through games such as 12-12, 18-18 or higher.
That creates a particular kind of pressure. In a match tiebreak, every point feels significant, and a mini-break—winning a point on the opponent’s serve—can be crucial. A player who has served well all match may still need to find their best return under intense pressure. Conversely, a strong server can use the tiebreak to shorten the final stretch by protecting their own service points.
Doubles and other events
Australian Open doubles matches are generally best of three sets, rather than the five-set format used for men’s singles. When a doubles match reaches a deciding set, it is settled by a 10-point match tiebreak. Mixed doubles also uses a deciding match tiebreak; its scoring includes event-specific rules, so it is worth checking the tournament’s current regulations if you are following a particular draw.
Qualifying and junior matches can have their own event rules. The main-draw singles format described above is the one most viewers mean when asking how an Australian Open match works. Wheelchair events and other competitions may also use formats tailored to their draws.
What the format means for players and viewers
In men’s singles, a player has more time to recover from a slow start: losing one set does not end the match, and there may be several hours of play left. But the longer format also tests fitness, concentration and recovery between sets. A player who looks comfortable early can fade, while someone who loses the opening set may gradually find their rhythm.
Women’s singles offers less room to absorb a bad stretch. Lose the first set and the opponent is one set from victory, so the next few games can be pivotal. In either format, the final-set tiebreak puts a premium on staying composed when the match is close.
There is no fixed match clock. A straightforward contest can finish quickly; long rallies, close games and extended tiebreaks can make another match run late. The format sets the route to victory, not the time it takes to get there. Roof closures or changes to the playing conditions affect the setting, not the basic scoring rules.
Frequently Asked Questions
Do men play five sets at the Australian Open?
Men’s singles is best of five sets, but a player only needs to win three. Many matches end in three or four sets; five sets are needed only when each player wins two of the first four.
How does a final-set tiebreak work?
At 6-6 in the deciding set, players continue in a match tiebreak. The first to at least 10 points wins, provided they lead by two. If the score is 9-9, for example, play continues until someone reaches 11-9 or another two-point margin.
Do women play a third set at the Australian Open?
They can. Women’s singles is best of three sets, so if the players split the first two sets, the third is the deciding set. If it reaches 6-6, a 10-point tiebreak decides the match.
Can an Australian Open match end in a tie?
No. A player or team must win the required sets, and tiebreaks continue until someone has the necessary two-point lead. There are no drawn matches.
Final Thoughts
The simplest way to remember the Australian Open singles format is: men need three sets, women need two, and a 6-6 score in the deciding set leads to a 10-point tiebreak. Once you know that final-set rule, the scoreline tells you how close a match is—and how much tennis may still be ahead.
