Stadium: Green Tennis Plaza - Court 06 Ground: Hardcourt outdoor
Referee:
| UTR Pro Kawaguchi | 2025/05/01 00:00 | Christopher Kosei Ono v Ryota Tanuma | 1-6,1-6 |
| UTR Pro Noda | 2023/10/17 03:35 | Christopher Kosei Ono v Ryota Tanuma | 2-6,2-6 |
| UTR Pro Urayasu | 2025/05/22 01:00 | Christopher Kosei Ono v Kotaro Mochizuki | 3-6,7-6,1-6 |
| UTR Pro Urayasu | 2025/05/21 04:40 | Mattias Southcombe v Christopher Kosei Ono | 3-6,4-6 |
| UTR Pro Urayasu | 2025/05/20 04:25 | Gaku Nayuki v Christopher Kosei Ono | 6-3,6-2 |
| UTR Pro Kawaguchi | 2025/05/03 00:00 | Koyu Yanagi v Christopher Kosei Ono | 3-6,6-4,6-1 |
| UTR Pro Kawaguchi | 2025/05/01 02:55 | Christopher Kosei Ono v Yuta Dokai | 2-6,6-1,6-3 |
| UTR Pro Kawaguchi | 2025/05/01 00:00 | Christopher Kosei Ono v Ryota Tanuma | 1-6,1-6 |
| UTR Pro Kawaguchi | 2025/04/29 04:00 | Maximus Z Wong v Christopher Kosei Ono | 6-3,4-6,2-6 |
| UTR Pro Kawaguchi | 2025/04/27 02:40 | Kotaro Mochizuki v Christopher Kosei Ono | 2-6,6-3,6-4 |
| UTR Pro Urayasu | 2025/05/22 01:00 | Ryota Tanuma v Taketo Takamisawa | 7-6,4-6,6-7 |
| UTR Pro Urayasu | 2025/05/21 01:00 | Jaden Dewandaka Tan v Ryota Tanuma | 5-7,1-6 |
| UTR Pro Urayasu | 2025/05/20 01:00 | Satoru Nakajima v Ryota Tanuma | 2-6,2-6 |
| UTR Pro Kawaguchi | 2025/05/04 03:15 | Ryota Tanuma v Yoshinori Kobayashi | 6-0,6-0 |
| UTR Pro Kawaguchi | 2025/05/03 02:35 | Ryota Tanuma v Felix Mischker | 6-2,6-1 |
| UTR Pro Kawaguchi | 2025/05/01 03:20 | Maximus Z Wong v Ryota Tanuma | 0-6,2-6 |
| UTR Pro Kawaguchi | 2025/05/01 00:00 | Christopher Kosei Ono v Ryota Tanuma | 1-6,1-6 |
| UTR Pro Kawaguchi | 2025/04/28 01:00 | Ryota Tanuma v Yuta Dokai | 6-4,6-2 |