Stadium: Court 6 Round: 25 Ground: Hardcourt outdoor
| ITF M25 Anseong | 2023/06/22 05:10 | Taisei Ichikawa v Jangjun Kim | 6-4,6-1 |
| ITF M25 Anseong | 2023/06/21 05:30 | Jangjun Kim v Young Seok Kim | 6-3,4-6,7-6 |
| ITF M25 Changwon | 2023/06/15 01:55 | Jangjun Kim v Jeamoon Lee | 0-6,1-6 |
| ITF M25 Changwon | 2023/06/14 01:00 | Junhyun Lee v Jangjun Kim | 6-7,6-7 |
| Challenger Soul | 2022/10/11 01:30 | Jangjun Kim v Rinky Hijikata | 1-6,2-6 |
| ITF M15 Tegu | 2022/08/31 08:05 | Kazuma Kawachi v Jangjun Kim | 6-4,1-6,7-5 |
| ITF M15 Čchangwon | 2022/08/25 04:05 | Yuta Kawahashi v Jangjun Kim | 6-1,6-4 |
| ITF M15 Čchangwon | 2022/08/23 03:05 | Thomas P Smith v Jangjun Kim | 6-3,3-6,2-6 |
| ITF M15 Tsukuba | 2024/03/25 06:00 | Ryotaro Taguchi v Koki Matsuda | 7-6,6-2 |
| ITF - M15 Nishi-Tokyo | 2024/03/23 01:40 | Ryotaro Taguchi v Hikaru Shiraishi | 2-6,6-4,4-6 |
| ITF - M15 Nishi-Tokyo | 2024/03/22 00:45 | Yan Bai v Ryotaro Taguchi | 3-6,5-7 |
| ITF - M15 Nishi-Tokyo | 2024/03/21 01:00 | Ryotaro Taguchi v Jeamoon Lee | 6-3,5-7,6-3 |
| ITF - M15 Nishi-Tokyo | 2024/03/20 00:50 | Ryotaro Taguchi v Tomohiro Masabayashi | 6-3,6-3 |
| ITF - M15 Nishi-Tokyo | 2024/03/18 01:00 | Ryotaro Taguchi v Julien De Cuyper | 6-2,6-4 |
| ITF M15 Hinode | 2024/03/16 01:25 | Yan Bai v Ryotaro Taguchi | 6-3,6-2 |
| ITF M15 Hinode | 2024/03/15 01:00 | Yi Zhou v Ryotaro Taguchi | 3-6,3-6 |