Stadium: Court C Round: 62 Ground: Hardcourt outdoor
| ITF M25 Daegu | 2023/06/04 01:00 | Dong Ju Kim v Young Seok Lee | 6-2,3-6,10-7 |
| ITF M15 Daegu | 2022/08/29 00:30 | Tae-Woo Lee v Young Seok Lee | 1-6,7-6,10-6 |
| ITF M15 Daegu | 2022/08/28 01:00 | Young Seok Lee v TaeWoo Koo | 6-2,6-3 |
| ITF M15 Monastir | 2021/12/13 09:00 | Charlelie Cosnet v Young Seok Lee | 6-4,6-3 |
| ITF M15 Monastir | 2021/12/12 12:00 | Thomas George Brun v Young Seok Lee | 3-6,2-6 |
| ITF M15 Changwon | 2019/10/16 00:55 | Young Seok Lee v Jung-Woong Na | 2-6,1-6 |
| ITF M15 Changwon | 2019/10/15 00:50 | Geun Wook Lee v Young Seok Lee | 1-6,1-6 |
| ITF M15 Changwon | 2019/10/14 01:30 | Chan-Yeong Oh v Young Seok Lee | 4-6,6-7 |
| ITF M25 Daegu | 2023/06/05 07:10 | Suk Hyun Choo v Junsu Kang | 6-3,7-5 |
| ITF M25 Jakarta | 2023/05/29 04:35 | Tegar A S Wibowo v Junsu Kang | 6-3,5-7,10-4 |