World No. 548 Keisuke Saitoh is 25 and plays left-handed. The record here is almost entirely on hard: 25-21. Twelve-month serve numbers: 67.4% of first serves in, 58.6% of those points won. A real threat on return: 403.2% of break points are converted. 729.8% of service games held: breaking this serve is hard.

In form: 4 of the last 5 finished matches won. No match in our data has lasted longer than the 35-game duel with K. Ogura. We have forecast this player's matches most often at ITF Men M15 Bali: 5 of them. Open any of these matches for BananaCore's pick, a predicted scoreline and the serve and return figures behind them. Latest tournament on record: Challenger Jingshan China Qualifying.

Serving and returning

1st serves in

62%

Won on 1st serve

62.9%

Won on 2nd serve

63.2%

Aces per match

1.5

Double faults per match

Break points saved

42.9%

Return games won

240%

Points won on return

44.4%

Service points won

367%

All points won

93.3%

Career Past 12 months

Titles

Finals

Semi-final runs

Tournaments played

Results by tournament 2 titles

ITF M15 Andong Men ITF Winner ITF M25 Sapporo Men ITF Winner ITF M15 Bali 2 Men ITF Semi-Finals ITF M15 Yanagawa City Men ITF Semi-Finals ITF M25 Monastir 2 Men ITF Semi-Finals ITF M15 Gimcheon 2 Men ITF Quarter-Finals ITF M15 Gimcheon Men ITF Quarter-Finals ITF M15 Monastir Men 2 ITF Quarter-Finals ITF M25 Burnie Men ITF Quarter-Finals ITF M25 Urayasu Men ITF Quarter-Finals ITF M25 Launceston Men ITF Round of 16 ITF M15 Bali Men ITF Round of 16 ITF M15 Kashiwa Men ITF Round of 16 ITF M15 Monastir Men ITF Round of 16 ITF M15 Singapore Men ITF Round of 16 ITF M15 Tokyo 2 Men ITF Round of 16 ITF M15 Singapore 2 Men ITF Round of 32 ITF M15 Tsukuba Men ITF Round of 32 ITF M25 Taipei 2 Men ITF Round of 32 ITF M25 Taipei Men ITF Round of 32 Matsuyama, Japan Challenger Qualifying

Sorted by best result, not by date

Year by year

2025

0–8

W–L

Matches

0–1

Tiebreaks

0.9

Aces per match

1.5

Double faults per match

1st serves in 68.7%

Won on 1st serve 55.6%

Won on 2nd serve 53.4%

Break points converted 27.8%

Break points saved 54%

2024

1–2

W–L

Matches

—

Tiebreaks

Aces per match

Double faults per match

1st serves in 71.7%

Won on 1st serve 62.4%

Won on 2nd serve 53.2%

Break points converted 35%

Break points saved 68.8%

Official singles figures for this season, as published by the tour. Don't expect the wins and losses to match our Predictions tab: that record covers only the matches we forecast. A dash marks a figure with no data yet.

Common questions

How often do our calls on Keisuke Saitoh come true?

27 of our 46 graded predictions on Keisuke Saitoh's matches were right, 58.7%. The latest 20 are listed below, each pick next to its result.

Which opponent has Keisuke Saitoh met most in our records?

Sanhui Shin, 2 times, with Keisuke Saitoh at 2-0 in those matches.