Watanuki Y.
01/Record by surface
41 starts on all surfaces, 4 ended by retirement and kept. A count, not a record: the three records above are never added.
02/Round reached
| Stage | Entries ending here | Record at this round |
|---|---|---|
| Champion | 0 of 23 | |
| Quarterfinal | 1 of 23 | 0-1 in 1 |
| 4th Round | 1 of 23 | 0-1 in 1 |
| 3rd Round | 2 of 23 | 1-2 in 3 |
| 2nd Round | 9 of 23 | 4-9 in 13 |
| 1st Round | 10 of 23 | 13-10 in 23 |
An entry is one tournament in one season; its stage is the last round the draw shows him in, and a champion’s is the trophy. The record at a round counts matches started at that round, so a walkover moves him on without a line here.
03/By level
| Level | Starts | Hard | Clay | Grass | Titles |
|---|---|---|---|---|---|
| Masters 1000 | 15 | 8-5 | 1-1 | none | 0 |
| ATP250 | 11 | 1-4 | 2-2 | 1-1 | 0 |
| ATP500 | 9 | 3-6 | none | none | 0 |
| Grand Slam | 6 | 1-3 | none | 1-1 | 0 |
04/By season
| Season | Starts | Hard | Clay | Grass | Finals | Titles | Rank, newest row |
|---|---|---|---|---|---|---|---|
| 2025 | 7 | 4-3 | none | none | 0 | 0 | 147 |
| 2024 | 4 | 2-2 | none | none | 0 | 0 | 336 |
| 2023 | 19 | 5-7 | 1-2 | 2-2 | 0 | 0 | 79 |
| 2022 | 5 | 0-2 | 2-1 | none | 0 | 0 | 227 |
| 2021 | 2 | 1-1 | none | none | 0 | 0 | 255 |
| 2019 | 1 | 0-1 | none | none | 0 | 0 | 181 |
| 2018 | 3 | 1-2 | none | none | 0 | 0 | 273 |
Each season is the same count over that season’s matches alone, each surface with its own starts. A season with a start on no grass court says none rather than 0-0. December openers file to the season they open. Finals counts the finals that crowned a champion, a walkover final among them, so Titles is a subset of it and a final lost shows in the gap; the surface columns count starts, which a walkover is not.
05/Head to head
A record, never a share: the most-met opponent is Tiafoe F., 1-2 in 3 meetings. A percentage of meetings is a win probability wearing a hat, and this section prints none. Meetings are matches started; a walkover between the two is noted and counted in neither column.
06/Match log
| Opponent | Score | Date | Tournament | Surface | Round | Result | His rank |
|---|---|---|---|---|---|---|---|
| Borges N.No. 51 that day | 6-2, 4-6, 1-6 | Sep 24, 2025 | Japan Open Tennis ChampionshipsATP500 | hard | 1st round | L | 147 |
| Tiafoe F.No. 12 that day | 6-1, 5-7, 6-7 | Jul 30, 2025 | Canadian OpenMasters 1000 | hard | 2nd round | L | 158 |
| Altmaier D.No. 58 that day | 3-6, 6-1, 6-4 | Jul 28, 2025 | Canadian OpenMasters 1000 | hard | 1st round | W | 158 |
| Griekspoor T.No. 43 that day | 6-7, 1-6 | Mar 11, 2025 | BNP Paribas OpenMasters 1000 | hard | 4th round | L | 349 |
| Tiafoe F.No. 17 that day | 6-4, 7-6 | Mar 10, 2025 | BNP Paribas OpenMasters 1000 | hard | 3rd round | W | 349 |
| Machac T.No. 20 that day | 4-6, 4-2 | Mar 8, 2025 | BNP Paribas OpenMasters 1000 | hard | 2nd round | Wret., opponent retired | 349 |
| Bublik A.No. 82 that day | 6-3, 3-6, 6-3 | Mar 6, 2025 | BNP Paribas OpenMasters 1000 | hard | 1st round | W | 349 |
| Fritz T.No. 7 that day | 3-6, 4-6 | Oct 8, 2024 | Shanghai MastersMasters 1000 | hard | 3rd round | L | 336 |
| Nakashima B.No. 35 that day | 7-6, 6-3 | Oct 5, 2024 | Shanghai MastersMasters 1000 | hard | 2nd round | W | 336 |
| Kotov P.No. 56 that day | 6-7, 6-4, 7-5 | Oct 3, 2024 | Shanghai MastersMasters 1000 | hard | 1st round | W | 336 |
| Kecmanovic M.No. 60 that day | 6-4, 5-7, 3-6, 4-6 | Jan 15, 2024 | Australian OpenGrand Slam, best of 5 | hard | 1st round | L | 102 |
| Mayot H.No. 176 that day | 4-6, 6-1, 4-6 | Nov 6, 2023 | Open de MoselleATP250 | hard | 1st round | L | 79 |
| Ruud C.No. 8 that day | 6-7, 3-6 | Oct 17, 2023 | Japan Open Tennis ChampionshipsATP500 | hard | 1st round | L | 73 |
| Fritz T.No. 8 that day | 6-7, 7-6, 4-6 | Oct 7, 2023 | Shanghai MastersMasters 1000 | hard | 2nd round | L | 79 |
| Shang J.No. 156 that day | 7-6, 4-6, 6-4 | Oct 5, 2023 | Shanghai MastersMasters 1000 | hard | 1st round | W | 79 |
| Mannarino A.No. 35 that day | 5-7, 7-6, 3-6, 5-7 | Aug 28, 2023 | US OpenGrand Slam, best of 5 | hard | 1st round | L | 85 |
| Humbert U.No. 36 that day | 0-6, 2-6 | Aug 3, 2023 | Citi OpenATP500 | hard | 3rd round | L | 99 |
| Auger-Aliassime F.No. 12 that day | 7-6, 7-6 | Aug 2, 2023 | Citi OpenATP500 | hard | 2nd round | W | 99 |
| Wu Y.No. 90 that day | 1-4 | Jul 31, 2023 | Citi OpenATP500 | hard | 1st round | Wret., opponent retired | 99 |
| Zverev A.No. 21 that day | 4-6, 7-5, 2-6, 2-6 | Jul 7, 2023 | WimbledonGrand Slam, best of 5 | grass | 2nd round | L | 116 |
| Huesler M.A.No. 81 that day | 6-7, 5-7, 7-6, 7-6, 6-3 | Jul 6, 2023 | WimbledonGrand Slam, best of 5 | grass | 1st round | W | 116 |
| Hurkacz H.No. 14 that day | 6-4, 6-7, 6-7 | Jun 14, 2023 | Stuttgart OpenATP250 | grass | 2nd round | L | 121 |
| Lopez F.No. 580 that day | 7-6, 6-3 | Jun 12, 2023 | Stuttgart OpenATP250 | grass | 1st round | W | 121 |
| Norrie C.No. 13 that day | 4-6, 6-7 | Apr 29, 2023 | Mutua Madrid OpenMasters 1000 | clay | 2nd round | L | 117 |
| Moutet C.No. 64 that day | 6-3, 6-3 | Apr 27, 2023 | Mutua Madrid OpenMasters 1000 | clay | 1st round | W | 117 |
| Hanfmann Y.No. 134 that day | 4-6, 6-3, 2-6 | Apr 4, 2023 | U.S. Men's Clay Court ChampionshipsATP250 | clay | 1st round | L | 107 |
| Tiafoe F.No. 14 that day | 7-6, 6-7, 4-6 | Mar 26, 2023 | Miami OpenMasters 1000 | hard | 2nd round | L | 123 |
| Paire B.No. 170 that day | 6-4, 7-5 | Mar 23, 2023 | Miami OpenMasters 1000 | hard | 1st round | W | 123 |
| Korda S.No. 31 that day | 2-6, 5-7, 4-6 | Jan 18, 2023 | Australian OpenGrand Slam, best of 5 | hard | 2nd round | L | 138 |
| Rinderknech A.No. 59 that day | 6-3, 6-3, 6-2 | Jan 16, 2023 | Australian OpenGrand Slam, best of 5 | hard | 1st round | W | 138 |
| Munar J.No. 59 that day | 1-2 | Sep 26, 2022 | Korea OpenATP250 | hard | 1st round | Lret. | 227 |
| Edmund K.No. 639 that day | 4-6, 6-7 | Aug 1, 2022 | Citi OpenATP500 | hard | 1st round | L | 239 |
| De Minaur A.No. 21 that day | 4-6 | May 19, 2022 | Lyon OpenATP250 | clay | quarterfinal | Lret. | 263 |
| Kwon S.W.No. 71 that day | 6-3, 6-4 | May 17, 2022 | Lyon OpenATP250 | clay | 2nd round | W | 263 |
| Martinez P.No. 43 that day | 6-7, 6-4, 6-2 | May 16, 2022 | Lyon OpenATP250 | clay | 1st round | W | 263 |
| Fucsovics M.No. 42 that day | 5-7, 1-6 | Aug 24, 2021 | Winston-Salem Open at Wake Forest UniversityATP250 | hard | 2nd round | L | 255 |
| Munar J.No. 64 that day | 3-6, 6-3, 6-0 | Aug 23, 2021 | Winston-Salem Open at Wake Forest UniversityATP250 | hard | 1st round | W | 255 |
| Lacko L.No. 133 that day | 4-6, 4-6 | Feb 18, 2019 | Delray Beach OpenATP250 | hard | 1st round | L | 181 |
| Raonic M.No. 20 that day | 3-6, 6-7 | Oct 3, 2018 | Rakuten Japan Open Tennis ChampionshipsATP500 | hard | 2nd round | L | 273 |
| Haase R.No. 44 that day | 6-7, 6-4, 6-1 | Oct 1, 2018 | Rakuten Japan Open Tennis ChampionshipsATP500 | hard | 1st round | W | 273 |
| Medvedev D.No. 63 that day | 6-3, 5-7, 1-6 | Jul 31, 2018 | Citi OpenATP500 | hard | 1st round | L | 287 |
Main-draw singles on the tour, 2018 to 2025, counted from the match rows. A match ended by retirement keeps the sets that were completed and is marked; a walkover is listed with no score and enters no count. Ranks are the tour’s ranking on the day of the match. No serve statistic appears on this page: the one archive that carries them is licensed for non-commercial use only. The ATP record runs through Aug 29, 2026.