| ITF M15 Tsukuba | 2024/03/25 06:00 | Ryotaro Taguchi v Koki Matsuda | 7-6,6-2 |
| ITF M25 Tsukuba | 2023/03/29 00:30 | Koki Matsuda v Ryotaro Taguchi | 6-3,2-6,2-6 |
| 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 M25 Ahmedabad | 2025/03/28 04:30 | Karan Singh v Ryotaro Taguchi | 6-4,6-4 |
| ITF M25 Ahmedabad | 2025/03/27 04:30 | Ishaque Eqbal v Ryotaro Taguchi | 5-7,1-6 |
| ITF M25 Ahmedabad | 2025/03/26 03:30 | Sidharth Rawat v Ryotaro Taguchi | 6-7,6-7 |
| ITF M25 Toulouse | 2025/03/20 09:00 | Ryotaro Taguchi v Marat Sharipov | 4-6,2-6 |
| ITF M25 Toulouse | 2025/03/19 09:00 | Yanis Ghazouani Durand v Ryotaro Taguchi | 3-6,6-7 |
| ITF M25 Les Franqueses | 2025/03/13 08:30 | Ryotaro Taguchi v Alberto Barroso Campos | 3-6,6-3,7-6 |
| ITF M15 Poitiers | 2025/03/05 11:30 | Ryotaro Taguchi v Hamish Stewart | 5-7,5-7 |
| ITF M25 Faro | 2025/02/25 10:00 | Maks Kasnikowski v Ryotaro Taguchi | 6-1,6-3 |