Stadium: Court 4 Round: 54 Ground: Hardcourt outdoor
| ITF M15 Kashiwa | 2024/03/31 01:00 | Yeongseok Jeong v Issei Okamura | 6-2,7-6 |
| ITF M15 Tsukuba | 2024/03/24 01:00 | Yeongseok Jeong v Ryotaro Matsumura | 3-6,4-6 |
| ITF M15 Nishitōkyō | 2024/03/18 03:30 | Yeongseok Jeong v Shunsuke Nakagawa | 6-7,2-6 |
| ITF M15 Nakhon Si Thammarat | 2024/02/28 02:00 | Sander Jong v Yeongseok Jeong | 6-3,7-5 |
| ITF M15 Nakhon Si Thammarat | 2024/02/19 02:00 | Yeongseok Jeong v Nitin Kumar Sinha | 6-7,6-7 |
| ITF M15 Nakhon Si Thammarat - kval | 2024/02/18 03:50 | Yeongseok Jeong v Bharath Nishok Kumaran | 5-7,7-6,10-4 |
| ITF M15 Nakhon Si Thammarat | 2024/02/13 05:00 | Yeongseok Jeong v Stefanos Sakellaridis | 1-6,3-6 |
| ITF M15 Kuala Lumpur | 2023/12/03 01:50 | Yeongseok Jeong v Alexey Zakharov | 1-6,7-6,6-4 |
| ITF M15 Kashiwa | 2024/03/31 01:00 | Ko Suzuki v Koki Matsuda | 3-6,5-7 |
| ITF M15 Tsukuba | 2024/03/25 06:00 | Ryotaro Taguchi v Koki Matsuda | 7-6,6-2 |
| ITF M15 Tsukuba | 2024/03/24 01:00 | Seon Yong Han v Koki Matsuda | 4-6,4-6 |
| ITF M15 Nishitōkyō | 2024/03/20 06:50 | Koki Matsuda v Stefanos Sakellaridis | 7-5,6-7,4-6 |
| ITF M15 Nishitōkyō | 2024/03/18 01:00 | Nico Hornitschek v Koki Matsuda | 2-6,3-6 |
| ITF M15 Hinode | 2024/03/13 02:00 | Linang Xiao v Koki Matsuda | 6-3,6-7,7-6 |
| ITF M15 Hinode | 2024/03/11 04:30 | Koki Matsuda v Issei Okamura | 6-4,6-3 |
| UTR Pro Kawaguchi | 2024/03/03 02:00 | Koki Matsuda v Tomohiro Masabayashi | 6-1,1-6,3-6 |