| 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 |
| ITF M25 Takasaki | 2023/09/20 01:00 | Ryotaro Matsumura v Toru Horie | 6-0,5-7,7-6 |
| ITF M15 Yanagawa | 2023/12/20 07:45 | Daisuke Sumizawa v Koki Matsuda | 5-7,3-6 |
| ITF M25 Gold Coast | 2023/11/29 01:55 | Daisuke Sumizawa v Matthew Dellavedova | 6-7,4-6 |
| ITF M25 Brisbane | 2023/11/22 03:50 | Daisuke Sumizawa v Emile Hudd | 2-6,2-6 |
| ITF M25 Cairns | 2023/10/12 00:00 | Omar Jasika v Daisuke Sumizawa | 6-1,6-2 |
| ITF M25 Cairns | 2023/10/10 23:50 | Daisuke Sumizawa v Taiyo Yamanaka | 6-2,6-2 |
| ITF M25 Cairns | 2023/10/06 02:25 | Daisuke Sumizawa v Ajeet Rai | 6-4,5-7,2-6 |
| ITF M25 Cairns | 2023/10/05 02:45 | Daisuke Sumizawa v Kody Pearson | 6-2,1-6,6-4 |
| ITF M25 Cairns | 2023/10/04 03:15 | Daisuke Sumizawa v Corban Crowther | 7-6,4-6,6-1 |