Stadium: Center Court Round: 26 Ground: Hardcourt outdoor
| ITF M25 Changwon | 2023/06/14 01:00 | Junhyun Lee v Jangjun Kim | 6-7,6-7 |
| Challenger Seoul | 2022/10/11 01:30 | Jangjun Kim v Rinky Hijikata | 1-6,2-6 |
| ITF M15 Daegu | 2022/08/31 08:05 | Kazuma Kawachi v Jangjun Kim | 6-4,1-6,7-5 |
| ITF M15 Changwon | 2022/08/25 04:05 | Yuta Kawahashi v Jangjun Kim | 6-1,6-4 |
| ITF M15 Changwon | 2022/08/23 03:05 | Thomas P Smith v Jangjun Kim | 6-3,3-6,2-6 |
| ITF M15 Anseong | 2022/08/17 02:10 | Jangjun Kim v Takuto Niki | 5-7,2-6 |
| ITF M15 Anseong | 2022/08/15 05:55 | Jangjun Kim v Sion Kwon | 6-1,6-2 |
| ITF M15 Anseong | 2022/08/14 04:00 | Jangjun Kim v Dong Hwan Kim | 6-1,6-1 |
| ITF M25 Changwon | 2023/06/14 03:50 | Yeonsu Jeong v Jeamoon Lee | 6-7,3-6 |
| ITF M25 Daegu | 2023/06/11 02:00 | Uisung Park v Jeamoon Lee | 6-3,7-5 |
| ITF M25 Daegu | 2023/06/10 00:55 | Jeamoon Lee v Dominik Palan | 7-6,6-4 |
| ITF M25 Daegu | 2023/06/09 00:50 | Geun Jun Kim v Jeamoon Lee | 0-6,1-6 |
| ITF M25 Daegu | 2023/06/08 01:00 | Dong Ju Kim v Jeamoon Lee | 3-6,3-6 |
| ITF M25 Daegu | 2023/06/07 01:00 | Ku Keon Kang v Jeamoon Lee | 4-6,7-5,4-6 |
| Challenger Busan | 2023/05/08 02:00 | Jeamoon Lee v Ajeet Rai | 4-6,1-6 |
| Challenger Seoul | 2023/04/26 03:40 | Marc Polmans v Jeamoon Lee | 6-3,6-2 |