Stadium: Court C1 Round: 28 Ground: Hardcourt outdoor
| ITF - M15 Tsukuba | 2024/03/29 06:15 | Ryotaro Matsumura v Sanhui Shin | 7-6,6-7,7-6 |
| ITF - M15 Tsukuba | 2024/03/27 05:30 | Vit Kalina v Ryotaro Matsumura | 6-3,0-6,2-6 |
| ITF - M15 Tsukuba | 2024/03/25 07:30 | Ryotaro Matsumura v Jumpei Yamasaki | 7-5,7-6 |
| ITF - M15 Tsukuba | 2024/03/24 01:00 | Yeongseok Jeong v Ryotaro Matsumura | 3-6,4-6 |
| ITF - M15 Nishi-Tokyo | 2024/03/19 01:00 | Leo Vithoontien v Ryotaro Matsumura | 3-6,6-4,10-6 |
| ITF - M15 Hinode | 2024/03/11 05:40 | Ryotaro Matsumura v Gen Nakamura | 3-6,5-7 |
| ITF - M15 Hinode | 2024/03/11 01:00 | Ryotaro Matsumura v Takada, Mao | 6-2,6-0 |
| UTR - Série Pro - Kawaguchi | 2024/03/09 23:30 | Riku Takahata v Ryotaro Matsumura | 6-3,7-5 |
| ITF - M15 Tsukuba | 2024/03/29 06:05 | Kokoro Isomura v Stefanos Sakellaridis | 6-2,0-6,6-2 |
| ITF - M15 Tsukuba | 2024/03/28 01:00 | Tsung-Hao Huang v Kokoro Isomura | 6-2,4-6,0-6 |
| ITF - M15 Tsukuba | 2024/03/27 04:05 | Shunsuke Nakagawa v Kokoro Isomura | 3-6,6-4,0-6 |
| ITF - M15 Hinode | 2024/03/14 02:40 | Kokoro Isomura v Stefanos Sakellaridis | 3-6,4-6 |
| ITF - M15 Hinode | 2024/03/13 05:45 | Yuta Kikuchi v Kokoro Isomura | 6-4,6-7,1-6 |
| ITF - M25 Traralgon | 2024/02/27 02:50 | Kokoro Isomura v Andre Ilagan | 4-6,0-6 |
| ITF - M25 Traralgon | 2024/02/20 23:00 | Kokoro Isomura v James McCabe | 6-7,2-6 |
| Challenger - Burnie - Qualifications | 2024/02/03 23:00 | Calum Puttergill v Kokoro Isomura | 6-3,6-2 |