Stadium: Court 13 Round: 62 Ground: Hardcourt outdoor
| ITF M15 Changwon | 2019/10/16 00:55 | Young Seok Lee v Jung-Woong Na | 2-6,1-6 |
| ITF M25 Changwon | 2023/06/11 08:00 | Young Seok Lee v Junsu Kang | 2-6,6-1,10-5 |
| 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 M25 Nonthaburi | 2020/02/05 06:35 | Matija Pecotic v Jung-Woong Na | 6-0,6-2 |
| ITF M25 Nonthaburi | 2020/02/04 02:30 | Cheong-Eui Kim v Jung-Woong Na | 7-5,1-6,7-10 |
| ITF M25 Nonthaburi | 2020/02/03 03:55 | Kittirat Kerdlaphee v Jung-Woong Na | 2-6,1-6 |
| ITF M25 Nonthaburi | 2020/02/02 02:30 | Yuttana Charoenphon v Jung-Woong Na | 0-6,1-6 |
| ITF M25 Nonthaburi | 2020/01/30 07:05 | Jung-Woong Na v Shuichi Sekiguchi | 1-6,4-6 |
| ITF M25 Nonthaburi | 2020/01/29 02:30 | Jung-Woong Na v Wishaya Trongcharoenchaikul | 7-6,7-6 |
| ITF M25 Nonthaburi | 2020/01/28 03:55 | Jirat Navasirisomboon v Jung-Woong Na | 6-2,2-6,3-10 |
| ITF M25 Nonthaburi | 2020/01/27 05:30 | Soichiro Moritani v Jung-Woong Na | 3-6,3-6 |