Stadium: KPI Park - Court 03 Round: 28 Ground: Hardcourt outdoor
Referee:
| UTR Pro Yokohama | 2025/01/31 01:00 | Kotaro Mochizuki v Christopher Kosei Ono | 4-6,7-5,6-2 |
| UTR Pro Yokohama | 2025/01/30 04:45 | Kazuki Nishiwaki v Christopher Kosei Ono | 0-6,7-5,7-5 |
| UTR Pro Yokohama | 2025/01/27 02:00 | Christopher Kosei Ono v Toshiki Karigyo | 7-5,3-6,5-7 |
| UTR Pro Noda | 2025/01/18 03:30 | Koki Matsuda v Christopher Kosei Ono | 6-1,7-5 |
| UTR Pro Noda | 2025/01/17 01:10 | Maxime Mareschal-Hay v Christopher Kosei Ono | 6-7,7-5,6-2 |
| UTR Pro Noda | 2025/01/16 01:55 | Ammar Elamin v Christopher Kosei Ono | 6-4,6-3 |
| UTR Pro Noda | 2025/01/14 00:00 | Ryotaro Matsumura v Christopher Kosei Ono | 6-0,6-2 |
| UTR Pro Noda | 2025/01/13 03:45 | Christopher Kosei Ono v Yusuke Yoshikawa | 6-4,6-3 |
| 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 01:00 | Jumpei Yamasaki v Daiki Sato | 6-0,6-4 |
| UTR Pro Yokohama | 2025/01/29 03:40 | Issei Okamura v Daiki Sato | 7-5,6-4 |
| UTR Pro Yokohama | 2025/01/27 01:00 | Kazuki Sugimoto v Daiki Sato | 6-0,6-0 |