Stadium: KPI Park - Court 03 Round: 29 Ground: Hardcourt outdoor
Referee:
| ITF M15 Luan | 2025/05/29 03:30 | Wishaya Trongcharoenchaikul v Koki Matsuda | 6-4,7-6 |
| ITF M15 Osaka | 2025/04/26 03:30 | Yusuke Takahashi v Koki Matsuda | 1-6,6-2,7-6 |
| ITF M15 Osaka | 2025/04/25 02:30 | Sora Fukuda v Koki Matsuda | 6-7,6-4,4-6 |
| ITF M15 Osaka | 2025/04/24 02:30 | Koki Matsuda v Daisuke Sumizawa | 3-6,6-4,7-6 |
| ITF M15 Osaka | 2025/04/23 02:00 | Saki Tange v Koki Matsuda | 2-6,4-6 |
| ITF M15 Osaka | 2025/04/21 02:30 | Koki Matsuda v Hien Q H Pham | 5-7,6-0,1-0 |
| ITF M15 Kashiwa | 2025/04/02 06:00 | Yu Hsiou Hsu v Koki Matsuda | 6-4,6-2 |
| ITF M15 Hinode | 2025/03/13 01:00 | Koki Matsuda v Steffan Van Weldam | 6-3,6-3 |
| ITF M15 Karuizawa | 2025/06/05 04:08 | Ryotaro Matsumura v Yuto Oki | 3-6,4-6 |
| ITF M15 Karuizawa | 2025/06/04 05:58 | Ryotaro Matsumura v Ko Nagashima | 6-1,6-2 |
| UTR Pro Urayasu | 2025/05/24 03:50 | Ryotaro Matsumura v Derek Pham | 3-6,4-6 |
| UTR Pro Urayasu | 2025/05/24 00:00 | Ryotaro Matsumura v Kotaro Mochizuki | 6-4,6-3 |
| UTR Pro Urayasu | 2025/05/23 00:00 | Emiliano Jorquera v Ryotaro Matsumura | 4-6,4-6 |
| UTR Pro Urayasu | 2025/05/22 07:00 | Kosuke Nakanishi v Ryotaro Matsumura | 6-7,3-6 |
| UTR Pro Urayasu | 2025/05/21 04:10 | Takeyasu Sekiguchi v Ryotaro Matsumura | 3-6,6-7 |
| UTR Pro Urayasu | 2025/05/19 04:45 | Toa Maeda v Ryotaro Matsumura | 1-6,0-6 |