Stadium: Court 15 Round: 62 Ground: Hardcourt outdoor
| ITF M25 Changwon | 2023/06/12 07:15 | Young Seok Lee v Jung-Woong Na | 4-6,3-6 |
| 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 M25 Changwon | 2024/06/16 03:00 | Yongjun Shim v Junhyun Lee | 1-6,1-6 |
| ITF M15 Anseong | 2024/06/13 02:10 | Sanhui Shin v Junhyun Lee | 3-6,6-3,6-4 |
| ITF M15 Anseong | 2024/06/12 01:00 | Woodam Song v Junhyun Lee | 2-6,3-6 |
| ITF M15 Anseong | 2024/06/11 03:10 | Sungbeen Sim v Junhyun Lee | 4-6,4-6 |
| ITF M15 Anseong | 2024/06/10 03:30 | Hangyeom Kim v Junhyun Lee | 1-6,4-6 |
| ITF M15 Anseong | 2024/06/09 06:30 | Woohyuk Sim v Junhyun Lee | 3-6,3-6 |
| ITF M15 Daegu | 2024/06/04 02:25 | Ji Hoon Son v Junhyun Lee | 6-2,6-0 |
| ITF M15 Karuizawa | 2024/05/27 01:00 | Sam Ryan Ziegann v Junhyun Lee | 6-3,3-6,11-9 |