Stadium: KPI Park - Court 03 Ground: Hardcourt outdoor
Referee:
| UTR Pro Yokohama | 2025/03/07 05:05 | Christopher Kosei Ono v Maxwell Benson | 2-6,3-6 |
| UTR Pro Yokohama | 2025/03/06 07:35 | Ko Nagashima v Christopher Kosei Ono | 7-6,2-6,2-6 |
| UTR Pro Yokohama | 2025/03/06 03:30 | Daisuke Inagawa v Christopher Kosei Ono | 3-6,2-6 |
| UTR Pro Yokohama | 2025/03/06 00:00 | Taketo Takamisawa v Christopher Kosei Ono | 6-2,6-3 |
| UTR Pro Kawaguchi | 2025/02/22 03:30 | Yuga Tashiro v Christopher Kosei Ono | 6-4,3-6,6-1 |
| UTR Pro Kawaguchi | 2025/02/21 05:35 | Christopher Kosei Ono v Ryoto Tachi | 6-2,6-2 |
| UTR Pro Kawaguchi | 2025/02/19 02:35 | Christopher Kosei Ono v Jannik Maute | 3-6,6-7 |
| UTR Pro Kawaguchi | 2025/02/18 02:10 | Christopher Kosei Ono v Keisuke Ota | 6-3,6-2 |