| UTR Pro Kawaguchi | 2024/03/09 00:00 | Natsuki Yamamoto v Koki Takada | 2-6,6-1,6-2 |
| UTR Pro Kawaguchi | 2024/03/08 03:30 | Natsuki Yamamoto v Oliver Welch | 6-3,6-4 |
| UTR Pro Kawaguchi | 2024/03/07 02:30 | Natsuki Yamamoto v Yuki Karatsu | 6-0,5-0 |
| UTR Pro Kawaguchi | 2024/03/06 23:30 | Yusuke Yoshikawa v Natsuki Yamamoto | 6-1,6-2 |
| UTR Pro Kawaguchi | 2024/03/04 06:31 | Taisei Miyamoto v Natsuki Yamamoto | 6-4,7-6 |
| UTR Pro Kawaguchi | 2024/03/03 00:30 | Natsuki Yamamoto v Naoto Tomizawa | 6-3,6-3 |
| ITF M15 Monastir | 2024/01/07 08:00 | Natsuki Yamamoto v Nazim Makhlouf | 5-7,4-6 |
| ITF M15 Monastir | 2024/01/01 13:00 | Maxence Bertimon v Natsuki Yamamoto | 6-1,6-1 |
| UTR Pro Kawaguchi | 2024/03/09 00:00 | Rei Sato v Christopher Kosei Ono | 3-6,7-6,6-7 |
| UTR Pro Kawaguchi | 2024/03/08 05:00 | Masaya Yufu v Christopher Kosei Ono | 2-6,0-6 |
| UTR Pro Kawaguchi | 2024/03/07 01:00 | Kai Kawano v Christopher Kosei Ono | 6-4,6-2 |
| UTR Pro Kawaguchi | 2024/03/05 01:00 | Kazuma Kimura v Christopher Kosei Ono | 3-6,0-6 |
| UTR Pro Kawaguchi | 2024/03/04 07:00 | Riku Takahata v Christopher Kosei Ono | 6-1,6-1 |
| UTR Pro Kawaguchi | 2024/03/03 02:00 | Chun-Ming Yam v Christopher Kosei Ono | 3-6,7-6,3-6 |
| UTR Pro Noda | 2023/10/22 01:30 | Christopher Kosei Ono v Sota Tani | 6-0,6-4 |
| UTR Pro Noda | 2023/10/21 01:30 | Brody Nejedly-Krall v Christopher Kosei Ono | 6-4,6-7,2-6 |