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Tennis statistics: the figures of the corpus

Over 455,469 settled ATP and WTA singles matches since 2021, the market favourite wins 68.8% of matches, 8.6% of matches are won by a player at odds of 3.00 or more, a match lasts 106 minutes on average and 27.6% of matches go to a deciding set. Figures recalculated every night, last updated on 05/09/2026. Each figure carries the sample it is computed on; the odds are Pinnacle's at opening, the close is the last odds before the first serve. The data can be downloaded in CSV.

The favourite and the market

  • The market favourite (lowest opening odds) wins 68.8% of matches, over 220,868 matches with odds. Its average odds are 1.43.
  • On the ATP, the favourite wins 68.6% (127,211 matches); on the WTA, 69.2% (93,657 matches).
  • 8.6% of matches are won by a player at opening odds of 3.00 or more, about 1 match in 12.
  • The bookmaker's margin averages 6.15% at opening (220,868 matches) and 5.33% at the close (176,512 matches with closing odds).

By surface

SurfaceMatchesFavourite winsAverage durationDeciding setAt least one tie-break
hard 196,361 69.0 % 105 min (11,071 matches) 26.3 % 19.6 %
clay 205,889 69.1 % 108 min (10,546 matches) 27.8 % 18.4 %
indoor hard 38,797 67.8 % 99 min (2,411 matches) 30.3 % 25.6 %
carpet 4,455 69.7 % 27.5 % 23.9 %
grass 9,967 67.6 % 29.5 % 33.4 %

The fastest surface is indoor hard (99 minutes per match), the slowest clay (108 minutes).

By tournament category

CategoryMatchesFavourite winsWon by a player at 3.00 or moreAverage durationRetirements and walkovers
ITF 264,554 70.8 % 9.0 % 104 min (10,670 matches) 4.87 %
Challenger 143,497 67.3 % 8.0 % 107 min (7,513 matches) 3.95 %
Main tour 22,254 67.5 % 8.6 % 105 min (2,997 matches) 3.66 %
Masters 10,394 66.5 % 9.0 % 105 min (1,752 matches) 3.93 %
Grand Slam 11,055 70.3 % 9.1 % 115 min (1,435 matches) 1.98 %

Ranking and gap in level

  • The higher-ranked of the two players wins 62.2% of matches, over 201,448 matches where both ranks are known at match time. The average ranking gap between the two players is 168 places.
  • When a top 10 player faces a player ranked beyond 100th place, they win 85.1% of the 948 matches.

Sets, tie-breaks, retirements

  • 27.6% of matches go to a deciding set (third set in best of three), over 435,402 completed matches: 28.2% on the ATP, 27.1% on the WTA.
  • In men's Grand Slams (best of five), 11.5% of the 5,401 matches go to a fifth set.
  • 19.9% of matches include at least one tie-break.
  • 4.40% of matches end in a retirement or a walkover (4.54% on the ATP, 4.21% on the WTA).

By season

SeasonMatchesPlayersFavourite winsAverage odds of the favouriteMargin at openingMargin at the close
2021 63,728 8,161 70.0 % 1.42 6.42 %
2022 83,381 10,384 70.4 % 1.42 6.36 % 5.80% (34,202 matches)
2023 89,826 10,789 66.9 % 1.46 6.35 % 5.66% (39,651 matches)
2024 79,910 10,762 67.1 % 1.46 6.01 % 5.26% (26,108 matches)
2025 80,412 10,158 67.7 % 1.44 6.27 % 5.58% (42,554 matches)
2026 58,212 9,558 70.9 % 1.41 5.38 % 4.20% (33,997 matches)

Closing odds have only been recorded systematically since September 2026: the column fills in over time.

Frequently asked questions

What percentage of tennis matches does the favourite win?

68.8% on 220,868 singles matches with odds since 2021, all tours combined (68.6% on the ATP, 69.2% on the WTA). The favourite is the player with the lowest opening odds.

How long does a tennis match last?

106 minutes on average over 24,422 singles matches whose duration is known; 99 minutes on indoor hard, 108 minutes on clay.

What share of tennis matches end in a retirement?

4.40% of singles matches end in a retirement or a walkover, over 455,469 matches since 2021.

Does the higher-ranked player always win?

No: 62.2% of matches out of 201,448 where both ranks are known. When a top 10 player faces a player ranked beyond 100th place, they win 85.1% of the 948 matches.

Scope and method

ATP and WTA singles matches settled with a winner, imported live since 1 January 2021, doubles excluded. The favourite is the player with the lowest Pinnacle opening odds; matches without odds or with equal odds are left out of the rates that depend on them. Duration is only known for part of the matches, stated each time. The rank at match time comes from the profile computed before the match, never from the current ranking. Sets are decoded from the final score; only completed matches count. Retirement: a score containing “ret.”, “w/o” or “def”. The full methodology.

See also: the data as CSV, the model's measured accuracy, reading odds, the glossary.