INFO: click on player name to show detailed player statistics
Katsuki Nagao vs. Yosuke Watanuki - H2H matches
| 08.06.15 | 1st round | Yosuke Watanuki | Katsuki Nagao | 7-67, 6-75, 6-4 | match details |  Japan F6 | Hard |
Katsuki Nagao form & Yosuke Watanuki form
Katsuki Nagao - last matches
 Hong Kong - Hard | ||||
| 25.06.17 1st round | vs. Masato Shiga | 2-6, 2-6 |  | match details |
| 26.06.17 q 1 | vs. David Barclay | 6-4, 6-2 |  | match details |
| 26.06.17 qual. | vs. Leo Julien Sebaoun | 6-2, 6-1 | | match details |
| Hong Kong - Hard | ||||
| 22.06.17 1/4 | vs. Jumpei Yamasaki | 3-6, 1-6 | | match details |
| 21.06.17 2nd round | vs. Francis Casey Alcantara | 4-6, 7-5, 1-0, Francis Casey Alcantara - retired | | match details |
| 21.06.17 1st round | vs. Ye Cong Mo | 6-2, 6-4 | | match details |
| Japan F8 - Carpet | ||||
| 15.06.17 2nd round | vs. Gengo Kikuchi | 2-6, 2-6 | | match details |
| 14.06.17 1st round | vs. Taisei Ichikawa | 6-0, 6-1 | | match details |
| Japan F7 - Hard | ||||
| 05.06.17 q 1 | vs. Rimpei Kawakami | 6-71, 6-72 | | match details |
| Japan F5 - Hard | ||||
| 04.04.17 1st round | vs. Tatsuma Ito | 6-72, 4-6 | | match details |
| 03.04.17 q 1 | vs. Kazuki Shimizu | 6-3, 6-3 | | match details |
| 03.04.17 qual. | vs. Hidetoshi Owada | 6-2, 6-4 | | match details |
| Japan F4 - Hard | ||||
| 27.03.17 q 1 | vs. Ryohei Tagata | 2-6, 6-2, 6-0 | | match details |
| 27.03.17 q 2 | vs. Nasa Hatakeyama | 6-2, 6-3 | | match details |
| 27.03.17 qual. | vs. Shunrou Takeshima | 2-6, 2-6 | | match details |
| Japan F3 - Hard | ||||
| 20.03.17 q 2 | vs. Masamichi Imamura | 6-2, 6-1 | | match details |
| 20.03.17 qual. | vs. Jea Moon Lee | 6-74, 4-6 | | match details |
| 20.03.17 q 1 | vs. Ryohei Tagata | 6-3, 6-3 | | match details |
| Japan F2 - Hard | ||||
| 13.03.17 q 2 | vs. Kenta Miyoshi (1995) | 2-6, 3-6 | | match details |
| Japan F1 - Hard | ||||
| 06.03.17 qual. | vs. Sho Shimabukuro | 3-6, 6-73 | | match details |
| 06.03.17 q 1 | vs. Leo Julien Sebaoun | 2-6, 6-3, 6-3 | | match details |
| 06.03.17 q 2 | vs. Yuichiro Inui | 6-3, 6-2 | | match details |
 Korea F8 - Clay | ||||
| 06.09.16 1st round | vs. Keisuke Numajiri | 6-3, 4-6, 0-6 | | match details |
| Korea F7 - Clay | ||||
| 31.08.16 2nd round | vs. Makoto Ochi | 3-6, 2-6 | | match details |
| 30.08.16 1st round | vs. Jae-Won Choi | 6-3, 7-65 | | match details |
| Korea F6 - Clay | ||||
| 23.08.16 1st round | vs. Jae Hwan Kim | 3-6, 2-6 | | match details |
| Japan F8 - Carpet | ||||
| 15.06.16 2nd round | vs. Yuki Mochizuki | 1-6, 0-6 | | match details |
| 14.06.16 1st round | vs. Yuichi Ito | 6-2, 6-4 | | match details |
| Japan F7 - Hard | ||||
| 07.06.16 1st round | vs. Ryotaro Matsumura | 6-4, 6-4 | | match details |
| 07.06.16 2nd round | vs. Kento Takeuchi | 4-6, 1-6 | | match details |
Yosuke Watanuki - last matches
 Wuxi Challenger - Hard | ||||
| 07.05.25 2nd round | vs. Ryan Peniston | 5-7, 6-4, 3-6 | | match details |
| 05.05.25 1st round | vs. Yi Zhou | 1-6, 7-63, 6-4 | | match details |
| Guangzhou Challenger - Hard | ||||
| 30.04.25 2nd round | vs. Ilia Simakin | 4-6, 6-76 | | match details |
| 29.04.25 1st round | vs. Li Tu | 6-4, 6-78, 6-3 | | match details |
| Gwangju Challenger - Hard | ||||
| 26.04.25 1/2 | vs. Alibek Kachmazov | 4-6, 3-6 | | match details |
| 25.04.25 1/4 | vs. Brandon Holt | 7-5, 7-62 | | match details |
| 24.04.25 2nd round | vs. Johannus Monday | 6-3, 6-77, 6-4 | | match details |
| 23.04.25 1st round | vs. James McCabe | 7-612, 6-3 | | match details |
| Busan Challenger - Hard | ||||
| 15.04.25 1st round | vs. Alex Bolt | 3-6, 6-74 | | match details |
 Miami - Hard | ||||
| 17.03.25 q 1 | vs. Gabriel Diallo | 1-6, 7-63, 3-6 | | match details |
| Indian Wells - Hard | ||||
| 11.03.25 4th round | vs. Tallon Griekspoor | 6-74, 1-6 | | match details |
| 09.03.25 3rd round | vs. Frances Tiafoe | 6-4, 7-66 | | match details |
| 07.03.25 2nd round | vs. Tomas Machac | 4-6, 4-2, Tomas Machac - retired | | match details |
| 05.03.25 1st round | vs. Alexander Bublik | 6-3, 3-6, 6-3 | | match details |
| 04.03.25 qual. | vs. Rudy Quan | 6-3, 6-2 | | match details |
| 03.03.25 q 1 | vs. Mattia Bellucci | 6-1, 6-2 | | match details |
 Dubai - Hard | ||||
| 22.02.25 q 1 | vs. Pavel Kotov | 3-6, 3-6 | | match details |
 Doha - Hard | ||||
| 15.02.25 q 1 | vs. Christopher O'Connell | 7-63, 6-74, 3-6 | | match details |
 Marseille - I. hard | ||||
| 10.02.25 qual. | vs. Arthur Gea | 6-72, 4-6 | | match details |
| 09.02.25 q 1 | vs. Jozef Kovalik | 7-5, 6-2 | | match details |
 Melbourne - Hard | ||||
| 08.01.25 q 2 | vs. Blake Ellis | 1-6, 4-6 | | match details |
| 07.01.25 q 1 | vs. Juan Manuel Cerundolo | 6-3, 7-63 | | match details |
| Canberra Challenger - Hard | ||||
| 02.01.25 1/4 | vs. Martin Landaluce | - Yosuke Watanuki - walk over | | match details |
| 01.01.25 2nd round | vs. Roman Andres Burruchaga | 6-3, 3-6, 7-65 | | match details |
| 31.12.24 1st round | vs. Hugo Gaston | 6-2, 6-2 | | match details |
| Kobe Challenger - I. hard | ||||
| 15.11.24 1/4 | vs. Alexander Blockx | 2-6, 6-3, 6-76 | | match details |
| 14.11.24 2nd round | vs. Terence Atmane | 7-65, 7-5 | | match details |
| 12.11.24 1st round | vs. Marc Polmans | 7-5, Marc Polmans - retired | | match details |
| Matsuyama Challenger - Hard | ||||
| 09.11.24 1/2 | vs. Alex Bolt | 3-6, 6-4, 3-6 | | match details |
| 08.11.24 1/4 | vs. Kokoro Isomura | 6-0, 7-5 | | match details |
