Stadium: Court 15 Round: 62 Ground: Hardcourt outdoor
| 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 |
| ITF M15 Nonthaburi | 2019/11/27 09:25 | Young Seok Kim v Congsup Congcar | 7-6,6-3 |
| ITF M25 Daegu | 2023/06/04 01:00 | Sam Baldwin v Hyeondeok Yoon | 7-6,7-5 |
| ITF M15 Daegu | 2022/08/31 08:05 | Hyeondeok Yoon v Cheong-Eui Kim | 2-6,2-6 |
| ITF M15 Daegu | 2022/08/29 00:30 | Jiho Lee v Hyeondeok Yoon | 1-6,3-6 |
| ITF M15 Daegu | 2022/08/28 06:00 | Hyeondeok Yoon v Adam Bronka | 6-3,6-1 |
| ITF M15 Changwon | 2022/08/21 03:30 | Hyeondeok Yoon v Sanhui Shin | 1-6,4-6 |
| ITF M15 Anseong | 2022/08/15 07:30 | Sanhui Shin v Hyeondeok Yoon | 6-4,6-4 |
| ITF M15 Anseong | 2022/08/15 03:35 | Hyeondeok Yoon v Min Seong Kim | 6-1,3-6,10-3 |
| ITF M15 Anseong | 2022/08/14 05:25 | Hyeondeok Yoon v Jin Sung Han | 6-4,6-3 |