Ground: Hardcourt outdoor
| ITF M15 Osaka | 2025/04/24 02:30 | Yuta Kawahashi v Takuya Kumasaka | 7-6,5-7,1-4 |
| ITF M15 Osaka | 2025/04/22 01:00 | Yuta Kikuchi v Takuya Kumasaka | 6-3,3-6,4-6 |
| ITF M15 Osaka | 2025/04/16 02:30 | Renta Tokuda v Takuya Kumasaka | 7-6,1-6,6-3 |
| ITF M15 Tsukuba | 2025/03/30 05:00 | Hyeon Chung v Takuya Kumasaka | 6-4,3-6,5-1 |
| ITF M15 Tsukuba | 2025/03/30 02:00 | Takuya Kumasaka v Filip Peliwo | 6-0,4-6,6-2 |
| ITF M15 Tsukuba | 2025/03/28 01:00 | Takuya Kumasaka v Ryo Tabata | 6-2,7-5 |
| ITF M15 Tsukuba | 2025/03/26 01:00 | Takuya Kumasaka v Issei Okamura | 7-5,6-1 |
| ITF M15 Nishi-Tokyo | 2025/03/23 03:00 | Hyeon Chung v Takuya Kumasaka | 6-4,6-0 |
| ITF M25 Baotou | 2025/05/09 02:00 | Yan Bai v Luca Castelnuovo | 6-4,0-6,6-1 |
| ITF M25 Baotou | 2025/05/08 01:30 | Luca Castelnuovo v Tsung-Hao Huang | 6-2,6-3 |
| ITF M25 Baotou | 2025/05/06 01:30 | Luca Castelnuovo v Yuquan Jin | 6-2,7-5 |
| ITF M25 Anning | 2025/05/01 04:00 | Yan Bai v Luca Castelnuovo | 6-2,7-5 |
| ITF M25 Anning | 2025/04/30 07:10 | Bingyu Yu v Luca Castelnuovo | 3-6,1-6 |
| ITF M25 Sharm El Sheikh | 2025/04/23 11:38 | Michal Krajci v Luca Castelnuovo | 6-4,6-7,6-2 |
| ITF M25 Sharm El Sheikh | 2025/04/16 11:00 | Karim Ibrahim v Luca Castelnuovo | 6-4,5-7,6-3 |
| ITF M15 Sharm El Sheikh | 2025/04/10 08:00 | Hamish Stewart v Luca Castelnuovo | 6-1,6-4 |