Tournament Rounds Calculator
Enter players or teams and a draw type to see how many round in tennis tournaments, total matches, first-round byes and each round's match count.
Result
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Result
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- Total matches
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- First-round byes
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- Bracket size
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Round-by-round
| Round | Matches |
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Single elimination: every match eliminates one competitor, so total matches equals entries minus one.
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How many round in tennis tournaments?
If you are asking how many round in tennis, the answer depends on the draw. A Grand Slam singles draw has 128 players, so a champion wins 7 rounds and 127 matches are played. ATP and WTA tour events commonly use 32, 48, 56 or 64 draws; a 32 draw is 5 rounds and a 64 draw is 6.
In single elimination, the draw is padded to the next power of two. Byes go to the top seeds, while every match eliminates exactly one competitor, making total matches equal to entries minus one. Masters 1000 events commonly use 56 or 96 draws where top seeds receive first-round byes.
Double elimination uses the no-decider convention here: total matches is 2 × entries − 2. Round robin gives every entrant one match against every other entrant; odd draws have one bye each round.
Single elimination: rounds = log₂(next power of two ≥ entries); matches = entries − 1; byes = bracket size − entries Double elimination rounds are an estimate based on 2 × log₂(bracket size) − 1, rounded up. This calculator does not seed or schedule individual matches.
Tournament rounds calculator FAQ
How many rounds are in a 128-player tennis draw?
A 128-player single-elimination draw has 7 rounds: the Round of 128, Round of 64, Round of 32, Round of 16, quarter-finals, semi-finals and final. The champion wins 7 matches.
Why does a 100-player draw have 28 byes?
The next power-of-two bracket is 128, so 128 minus 100 equals 28 first-round byes. The byes go to the top seeds in a standard seeded draw.
How are total single-elimination matches calculated?
Every match eliminates one competitor. To reduce the field from n entrants to one champion therefore requires n minus one matches, even when the bracket includes byes.
How does round robin differ from elimination?
In round robin, every entrant plays every other entrant once, so matches equal n × (n − 1) ÷ 2. The schedule takes n − 1 rounds for even n and n rounds for odd n.
What double-elimination convention does this tool use?
It uses 2 × entries − 2 matches and does not include a second championship decider if the winners' bracket champion loses the final. Its round count is an estimate based on the padded bracket size.