Stadium: KPI Park - Court 01 Round: 28 Ground: Hardcourt outdoor
Referee:
| UTR Pro Yokohama | 2025/02/01 00:00 | Issei Okamura v Keisuke Ota | 6-2,7-5 |
| UTR Pro Yokohama | 2025/01/31 01:00 | Koki Matsuda v Keisuke Ota | 6-1,6-1 |
| UTR Pro Yokohama | 2025/01/30 03:05 | Kazuki Saito v Keisuke Ota | 5-7,4-6 |
| UTR Pro Yokohama | 2025/01/29 04:50 | Mao Takada v Keisuke Ota | 5-7,5-7 |
| UTR Pro Yokohama | 2025/01/27 01:30 | Arjun Mehrotra v Keisuke Ota | 6-4,7-6 |
| ITF M15 Yanagawa | 2024/10/28 04:00 | Keisuke Ota v Ke Hau Hung | 3-6,3-6 |
| ITF M15 Tanagura | 2024/10/20 00:30 | Keisuke Ota v Shu Muto | 4-6,0-6 |
| ITF M25 Sapporo | 2024/09/02 01:00 | Hiroki Sakagawa v Keisuke Ota | 6-0,6-0 |
| UTR Pro Yokohama | 2025/02/07 02:20 | Natsuki Yamamoto v Ryotaro Matsumura | 2-6,1-6 |
| UTR Pro Yokohama | 2025/02/05 02:30 | Natsuki Yamamoto v Yamato Sueoka | 5-7,7-5,2-6 |
| UTR Pro Yokohama | 2025/02/04 04:40 | Natsuki Yamamoto v Kazuma Kawachi | 1-6,2-6 |
| UTR Pro Yokohama | 2025/02/03 06:05 | Gengo Kikuchi v Natsuki Yamamoto | 3-6,6-2,6-3 |
| UTR Pro Yokohama | 2025/02/01 08:10 | Toshiki Karigyo v Natsuki Yamamoto | 2-6,6-3,3-6 |
| UTR Pro Yokohama | 2025/01/31 23:45 | Mao Takada v Natsuki Yamamoto | 1-6,6-2,3-6 |
| UTR Pro Yokohama | 2025/01/31 02:35 | Natsuki Yamamoto v Daiki Sato | 6-2,6-7,6-2 |
| UTR Pro Yokohama | 2025/01/30 04:20 | Natsuki Yamamoto v Kazuki Sugimoto | 5-7,2-6 |