Stadium: Court 13 Round: 62 Ground: Hardcourt outdoor
| ITF M25 Changwon | 2023/06/11 07:10 | Jungwoong Na v Yongjun Shim | 6-2,6-2 |
| ITF M25 Changwon | 2023/06/11 08:35 | Young Seok Kim v Hyeondeok Yoon | 6-2,6-4 |
| ITF M25 Daegu | 2023/06/04 01:00 | Jake Delaney v Young Seok Kim | 6-2,4-6,12-10 |
| Challenger Busan | 2023/05/07 08:45 | Yasutaka Uchiyama v Young Seok Kim | 6-3,6-1 |
| Challenger Seoul | 2023/04/23 04:30 | Yasutaka Uchiyama v Young Seok Kim | 6-1,6-0 |
| ITF M15 Antalya | 2023/04/12 11:00 | Young Seok Kim v Maxime Chazal | 4-6,3-6 |
| ITF M15 Nonthaburi | 2019/12/02 04:30 | Pol Wattanakul v Young Seok Kim | 6-3,6-4 |
| ITF M15 Nonthaburi Qual | 2019/12/01 08:25 | Chattarin Wareesri v Young Seok Kim | 1-6,2-6 |
| ITF M15 Nonthaburi | 2019/11/28 07:25 | Benjamin Pietri v Young Seok Kim | 6-4,6-1 |