Stadium: Court 15 Round: 62 Ground: Hardcourt outdoor
| 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 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 |
| ITF M25 Changwon | 2023/06/12 01:00 | Kuan Yu Chen v HyunBin Jin | 4-6,6-3,11-9 |
| ITF M15 Monastir | 2023/05/03 09:35 | Kuan Yu Chen v Omar Brigida | 2-6,2-6 |
| ITF M15 Monastir | 2023/04/25 13:00 | Michal Mikula v Kuan Yu Chen | 6-2,3-6,6-2 |
| ITF M15 Monastir | 2023/04/18 08:30 | Koray Kirci v Kuan Yu Chen | 6-2,6-2 |
| ITF M15 Monastir | 2023/04/10 08:00 | Axel Garcian v Kuan Yu Chen | 7-6,6-2 |
| ITF M15 Monastir | 2023/04/09 10:00 | Artsiom Dabryian v Kuan Yu Chen | 4-6,0-6 |
| ITF M15 Monastir | 2023/03/13 08:30 | Tom Biston v Kuan Yu Chen | 6-0,6-2 |
| ITF M15 Monastir | 2023/03/12 08:30 | Kuan Yu Chen v Yujiro Onuma | 3-6,6-4,10-6 |