| ITF Korea F4 | 2018/08/16 03:05 | Young Seok Lee v Uisung Park | 2-6,0-6 |
| ITF Korea F4 | 2018/08/14 01:00 | Aaron Addison v Young Seok Lee | 6-0,3-6,2-6 |
| ITF Korea F4 | 2018/08/12 02:00 | Jung Ho Shin v Young Seok Lee | 3-6,3-6 |
| Challenger Gimcheon | 2018/05/08 05:40 | Young Seok Lee v Makoto Ochi | 1-6,1-6 |
| ITF Korea F1 Qual | 2016/06/11 01:00 | Ji-Ha Kim v Young Seok Lee | 3-6,7-6,6-2 |
| ITF Korea F4 | 2018/08/13 01:00 | Ku Keon Kang v Seoung Hun Lee | 6-2,6-2 |
| ITF Korea F4 | 2018/08/12 02:00 | Jae Won Yun v Seoung Hun Lee | 6-3,2-6,6-7 |
| ITF Korea F3 Qual | 2018/06/16 01:00 | Geon Ju Shin v Seoung Hun Lee | 3-6,4-6 |
| ITF Korea F2 | 2018/06/10 05:00 | Sang-Woo Noh v Seoung Hun Lee | 6-3,6-3 |
| ITF Korea F2 | 2018/06/09 02:00 | Seoung Hun Lee v Geon Ju Shin | 6-3,6-4 |
| ITF Korea F1 | 2018/06/02 02:00 | Sung Jun Park v Seoung Hun Lee | 6-1,6-1 |
| Challenger Gwangju Qual | 2017/09/16 01:30 | Seoung Hun Lee v Dae-Hee Lee | 4-6,3-6 |
| ITF Korea F5 | 2017/06/26 01:30 | Seong Chan Hong v Seoung Hun Lee | 6-3,6-0 |