| ITF M15 Tsukuba | 2025/03/27 01:00 | Chan-Yeong Oh v Hikaru Shiraishi | 3-6,0-6 |
| ITF M15 Nishi-Tokyo | 2025/03/19 02:30 | Shunsuke Nakagawa v Chan-Yeong Oh | 6-3,6-4 |
| ITF M15 Hinode | 2025/03/14 01:00 | Chan-Yeong Oh v Takuya Kumasaka | 2-6,6-4,4-6 |
| ITF M15 Hinode | 2025/03/13 01:00 | Junhyun Lee v Chan-Yeong Oh | 3-6,1-6 |
| ITF M15 Hinode | 2025/03/11 02:30 | Seungmin Park v Chan-Yeong Oh | 6-4,4-6,6-7 |
| ITF M25 Bali | 2025/01/02 02:15 | Shunsuke Nakagawa v Chan-Yeong Oh | 7-6,4-6,7-6 |
| ITF M25 Bali | 2024/12/31 01:30 | Abel Forger v Chan-Yeong Oh | 4-6,1-2 |
| ITF M15 Bali | 2024/12/23 02:50 | Chan-Yeong Oh v Jumpei Yamasaki | 4-6,1-6 |
| ITF M25 Anning | 2025/04/30 03:00 | Tomohiro Masabayashi v Akira Santillan | 4-6,3-6 |
| ITF M15 Luan | 2025/04/24 02:00 | Egor Agafonov v Tomohiro Masabayashi | 6-1,6-1 |
| ITF M15 Luan | 2025/04/22 03:30 | Charles Chen v Tomohiro Masabayashi | 2-6,3-6 |
| ITF M15 Luan | 2025/04/15 03:30 | Daniil Sarksian v Tomohiro Masabayashi | 6-3,6-4 |
| ITF M15 Kashiwa | 2025/04/04 01:00 | Yusuke Takahashi v Tomohiro Masabayashi | 6-3,6-1 |
| ITF M15 Kashiwa | 2025/04/01 03:41 | Tomohiro Masabayashi v Taisei Ichikawa | 6-1,1-6,6-4 |
| ITF M15 Nonthaburi | 2025/03/19 03:00 | Yunseok Jang v Tomohiro Masabayashi | 6-0,6-4 |
| ITF M15 Nonthaburi | 2025/03/15 03:00 | Petr Bar Biryukov v Tomohiro Masabayashi | 6-3,7-6 |