Stadium: Court 21 Round: 62 Ground: Clay
| ITF M15 Antalya | 2023/11/26 07:00 | Dong Ju Kim v Emir Sutekin | 6-2,6-1 |
| ITF M25 Anseong | 2023/06/22 02:00 | Yunseong Chung v Dong Ju Kim | 3-6,6-1,7-5 |
| ITF M25 Anseong | 2023/06/21 03:30 | Dong Ju Kim v Dae Han Kim | 7-5,6-2 |
| ITF M25 Anseong | 2023/06/19 07:45 | Dong Ju Kim v Kuan Yu Chen | 6-2,6-1 |
| ITF M25 Changwon | 2023/06/12 08:30 | Junhyun Lee v Dong Ju Kim | 3-6,6-3,13-11 |
| ITF M25 Changwon | 2023/06/12 05:30 | Woohyuk Sim v Dong Ju Kim | 6-3,3-6,11-13 |
| ITF M25 Changwon | 2023/06/11 08:30 | Ki Bum Kim v Dong Ju Kim | 6-4,1-6,10-12 |
| ITF M25 Daegu | 2023/06/08 01:00 | Dong Ju Kim v Jeamoon Lee | 3-6,3-6 |
| ITF M25 Antalya | 2023/11/12 07:00 | Stefan Palosi v Ahmet Atabay | 6-0,6-0 |