| ITF - M15 Yanagawa | 2023/12/22 02:10 | Kazuma Kawachi v Ryotaro Matsumura | 6-4,4-6,6-4 |
| UTR Pro - Kawaguchi | 2024/03/02 03:00 | Takuya Kumasaka v Kazuma Kawachi | 4-5 |
| ITF - M15 Yanagawa | 2023/12/27 00:30 | Takuya Kumasaka v Kazuma Kawachi | 6-4,6-2 |
| ITF - M15 Yanagawa | 2023/12/26 00:30 | Kazuma Kawachi v Shu Muto | 6-1,6-1 |
| ITF - M15 Yanagawa | 2023/12/25 00:30 | Kazuma Kawachi v Seiya Nakanishi | 6-3,6-0 |
| ITF - M15 Yanagawa | 2023/12/22 07:25 | Sanhui Shin v Kazuma Kawachi | 6-1,6-2 |
| ITF - M15 Yanagawa | 2023/12/22 02:10 | Kazuma Kawachi v Ryotaro Matsumura | 6-4,4-6,6-4 |
| ITF - M15 Yanagawa | 2023/12/21 00:30 | Yamato Sueoka v Kazuma Kawachi | 2-6,6-3,6-7 |
| ITF - M15 Yanagawa | 2023/12/20 03:00 | Kazuma Kawachi v Yuto Oki | 6-2,6-4 |
| UTR Pro - Kawaguchi | 2024/03/02 03:00 | Ryotaro Matsumura v Daisuke Sumizawa | 6-2,7-5 |
| ITF - M15 Yanagawa | 2023/12/27 00:30 | Mikalai Haliak v Ryotaro Matsumura | 6-3,6-3 |
| ITF - M15 Yanagawa | 2023/12/26 00:30 | Ryotaro Matsumura v Shu Matsuoka | 6-2,6-1 |
| ITF - M15 Yanagawa | 2023/12/22 02:10 | Kazuma Kawachi v Ryotaro Matsumura | 6-4,4-6,6-4 |
| ITF - M15 Yanagawa | 2023/12/20 02:30 | Hiroki Sakagawa v Ryotaro Matsumura | 2-6,1-6 |
| ITF - M25 Dharwad | 2023/10/18 09:25 | Kazuki Nishiwaki v Ryotaro Matsumura | 6-2,7-5 |
| ITF - M15 Ahmedabad | 2023/10/10 03:30 | Digvijay Pratap Singh v Ryotaro Matsumura | 6-2,6-4 |
| ITF - M25 Takasaki | 2023/09/21 02:00 | Ryotaro Matsumura v Sora Fukuda | 1-6,1-6 |