Stadium: Court 14 Round: 62 Ground: Hardcourt outdoor
| 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 Sookton-Eng, Chanchai | 6-4,7-6 |
| ITF M15 Changwon | 2022/08/23 01:00 | Geun Jun Kim v Ryuki Matsuda | 1-6,3-6 |
| ITF M15 Anseong | 2022/08/17 03:10 | Colin Sinclair v Geun Jun Kim | 7-5,6-2 |
| Harmon, Singles Main, M-ITF-GUM-02A | 2022/06/09 00:00 | Geun Jun Kim v Ko Suzuki | 3-6,1-6 |
| ITF M25 Daegu | 2023/06/04 01:00 | Kim, Ki Bum v Kim, Hyeong Don | 4-6,6-1,10-8 |
| ITF - M15 Daegu | 2022/08/28 03:30 | Geni Inoue v Kim, Hyeong Don | 6-3,6-3 |
| ITF M15 Anseong | 2022/08/17 02:35 | Kim, Hyeong Don v Adil Kalyanpur | 7-6,4-6,3-6 |
| ITF Korea F5 | 2018/08/21 04:20 | Kim, Hyeong Don v Im, Seong Taek | 6-4,3-6,1-6 |
| ITF Korea F4 | 2018/08/14 03:20 | Kim, Hyeong Don v Hovhannisyan, Mousheg | 6-4,1-6,2-6 |
| ITF Korea F4 | 2018/08/13 01:00 | Kang, Hogi v Kim, Hyeong Don | 3-6,0-6 |
| ITF Korea F4 | 2018/08/12 02:00 | Jungwon Park v Kim, Hyeong Don | 4-6,4-6 |
| ITF Korea F4 | 2018/08/11 01:00 | Kim, Hyeong Don v Lee, Dae-Hee | 4-6,6-2,6-4 |