| ITF - M15 Yanagawa | 2023/12/27 00:30 | Takuya Kumasaka v Kazuma Kawachi | 6-4,6-2 |
| Challenger - Burnie | 2024/02/06 02:40 | Yasutaka Uchiyama v Takuya Kumasaka | 6-0,6-2 |
| Challenger - Burnie | 2024/02/05 00:35 | Takuya Kumasaka v Alexander Klintcharov | 6-2,6-2 |
| Challenger - Burnie - Calificari | 2024/02/04 04:15 | Takuya Kumasaka v Pavle Marinkov | 7-5,6-3 |
| Challenger - Burnie | 2024/01/30 00:25 | Rinky Hijikata v Takuya Kumasaka | 6-4,6-2 |
| Challenger - Burnie | 2024/01/29 00:20 | Takuya Kumasaka v Corey Gaal | 7-6,4-6,7-6 |
| Challenger - Burnie | 2024/01/28 03:40 | Takuya Kumasaka v Naoki Tajima | 6-4,7-6 |
| ITF - M15 Yanagawa | 2023/12/29 00:50 | Jumpei Yamasaki v Takuya Kumasaka | 6-1,6-4 |
| ITF - M15 Yanagawa | 2023/12/27 00:30 | Takuya Kumasaka v Kazuma Kawachi | 6-4,6-2 |
| 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 |
| Challenger - Yokkaichi | 2023/11/26 01:00 | Nathan Ponwith v Kazuma Kawachi | 6-7,6-4,7-5 |