Stadium: Court 3 Round: 25 Ground: Hardcourt outdoor
| ITF M15 Daegu | 2022/08/31 08:40 | Dae Han Kim v Dong Ju Kim | 0-6,4-6 |
| 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 Daegu | 2023/06/07 02:40 | Keisuke Saitoh v Dong Ju Kim | 1-6,2-6 |
| ITF M25 Daegu | 2023/06/05 06:40 | Dong Ju Kim v Woodam Song | 6-1,6-2 |
| ITF M25 Daegu | 2023/06/05 02:50 | Dong Ju Kim v Byeonghun Kim | 6-2,6-2 |
| ITF M25 Anseong | 2023/06/19 06:40 | Dae Han Kim v Seonghun Kim | 6-2,6-1 |
| ITF M25 Anseong | 2023/06/19 02:50 | Dae Han Kim v MooBeen Kim | 6-2,6-1 |
| ITF M25 Anseong | 2023/06/18 03:40 | Dae Han Kim v JiWon Kang | 6-0,6-0 |
| ITF M25 Changwon | 2023/06/12 08:20 | Chan-Yeong Oh v Dae Han Kim | 5-7,6-2,10-4 |
| ITF M25 Changwon | 2023/06/12 02:55 | Jin Sung Han v Dae Han Kim | 3-6,1-6 |
| ITF M25 Changwon | 2023/06/11 06:50 | Christian Heaney-Secord v Dae Han Kim | 2-6,4-6 |
| ITF M25 Daegu | 2023/06/05 00:50 | Jeong Heon Lee v Dae Han Kim | 6-2,7-5 |
| ITF M15 Daegu | 2022/08/31 08:40 | Dae Han Kim v Dong Ju Kim | 0-6,4-6 |