Stadium: Court C Round: 62 Ground: Hardcourt outdoor
| ITF M15 Gimcheon | 2019/06/11 02:35 | Geun Jun Kim v Jeong Heon Lee | 6-2,1-6,4-10 |
| ITF M25 Changwon | 2024/06/16 01:00 | Geun Jun Kim v Jungmin Hwang | 6-3,6-2 |
| ITF M25 Changwon | 2023/06/15 04:35 | Sanhui Shin v Geun Jun Kim | 6-0,6-4 |
| ITF M25 Changwon | 2023/06/11 05:25 | Geun Jun Kim v Hyeong Don Kim | 6-2,6-4 |
| ITF M25 Daegu | 2023/06/09 00:50 | Geun Jun Kim v Jeamoon Lee | 0-6,1-6 |
| ITF M25 Daegu | 2023/06/08 02:25 | Geun Jun Kim v Yeongseok Jeong | 6-1,2-6,6-4 |
| ITF M25 Daegu | 2023/06/07 00:55 | Jesse Delaney v Geun Jun Kim | 3-6,3-6 |
| ITF M15 Daegu | 2022/09/02 02:00 | Duckhee Lee v Geun Jun Kim | 6-3,6-2 |
| ITF M15 Daegu | 2022/08/30 01:00 | Geun Jun Kim v Chanchai Sookton-Eng | 6-4,7-6 |
| ITF M25 Changwon | 2024/06/16 01:00 | Jeong Heon Lee v Woojun Kang | 6-3,6-1 |
| ITF M15 Daegu | 2024/06/07 01:00 | Ezekiel Clark v Jeong Heon Lee | 6-4,6-1 |
| ITF M15 Daegu | 2024/06/05 02:25 | Jeong Heon Lee v Tsung-Hao Huang | 7-5,6-4 |
| ITF M15 Daegu | 2024/06/04 02:30 | Jeong Heon Lee v Jungwon Park | 6-7,6-1,10-2 |
| ITF M15 Daegu | 2024/06/03 03:10 | Dong Ju Kim v Jeong Heon Lee | 6-3,3-6,6-10 |
| ITF M25 Anseong | 2023/06/18 01:00 | Seon Yong Han v Jeong Heon Lee | 6-4,6-1 |
| ITF M25 Changwon | 2023/06/12 03:10 | Jeong Heon Lee v Jun Ha Hyun | 4-6,2-6 |
| ITF M25 Changwon | 2023/06/11 05:55 | Jeong Heon Lee v Shayan Najam | 6-2,6-1 |