Stadium: KPI Park - Court 01 Ground: Hardcourt outdoor
Referee:
| UTR Pro Yokohama | 2025/01/29 01:00 | Kazuki Saito v Koki Matsuda | 0-6,1-6 |
| UTR Pro Yokohama | 2025/01/28 08:25 | Kazuki Saito v Arjun Mehrotra | 0-6,0-6 |
| UTR Pro Urayasu | 2024/05/11 01:30 | Nicholas Jovanovski v Kazuki Saito | 6-7,6-3,6-2 |
| UTR Pro Urayasu | 2024/05/09 03:00 | Kazuki Saito v Seiya Nakanishi | 4-6,2-6 |
| UTR Pro Urayasu | 2024/05/09 01:30 | Kazuki Saito v Toa Maeda | 2-6,6-7 |
| 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 |
| ITF M25 Sapporo | 2024/09/01 01:00 | Keisuke Ota v Jared Thompkins | 6-2,6-7,10-6 |
| UTR Pro Kawaguchi | 2024/06/24 02:44 | Brody Nejedly-Krall v Keisuke Ota | 6-2,2-6,7-5 |