Round: 26 Ground: Hardcourt outdoor
| ITF M15 Nishi-Tokyo | 2024/03/20 07:55 | Linang Xiao v Takuya Kumasaka | 7-6,7-6 |
| ITF M15 Hinode | 2024/03/14 01:00 | Takuya Kumasaka v Yuki Mochizuki | 2-6,2-6 |
| ITF M15 Hinode | 2024/03/12 01:00 | Leo Vithoontien v Takuya Kumasaka | 2-6,6-4,4-6 |
| UTR Pro Kawaguchi | 2024/03/02 03:00 | Takuya Kumasaka v Kazuma Kawachi | 4-5 |
| 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 Qual | 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 |
| ITF M15 Nishi-Tokyo | 2024/03/22 04:05 | Duckhee Lee v Yunseong Chung | 6-4,6-0 |
| ITF M15 Nishi-Tokyo | 2024/03/21 00:55 | Linang Xiao v Yunseong Chung | 2-6,4-6 |
| ITF M15 Nishi-Tokyo | 2024/03/20 02:30 | Masamichi Imamura v Yunseong Chung | 6-7,2-6 |
| Challenger Pune | 2024/02/19 05:30 | Alexey Zakharov v Yunseong Chung | 6-3,5-7,6-4 |
| Challenger Pune | 2024/02/18 08:15 | Yunseong Chung v Rio Noguchi | 7-5,7-6 |
| Challenger Bengaluru | 2024/02/12 06:20 | Chun Hsin Tseng v Yunseong Chung | 7-5,4-6,6-2 |
| Challenger Bengaluru | 2024/02/11 09:30 | Adil Kalyanpur v Yunseong Chung | 4-6,3-6 |
| Challenger Nonthaburi | 2024/01/08 05:40 | Yunseong Chung v Christian Langmo | 2-6,0-6 |