| ITF Korea F3 Qual | 2018/06/16 03:30 | Seong Woon Yu v Dae-Hee Lee | 4-6,4-6 |
| ITF Korea F4 | 2018/08/12 02:00 | Hyung-Chan Lim v Seong Woon Yu | 4-6,4-6 |
| ITF Korea F3 Qual | 2018/06/16 03:30 | Seong Woon Yu v Dae-Hee Lee | 4-6,4-6 |
| ITF Korea F2 | 2018/06/10 03:30 | Seong Woon Yu v Alec Adamson | 5-7,3-6 |
| ITF Korea F2 | 2018/06/09 02:00 | Seong Woon Yu v Jun Su Kim | 6-2,6-0 |
| ITF Korea F1 | 2018/06/03 01:00 | Tae-Woo Lee v Seong Woon Yu | 6-1,2-6,6-1 |
| ITF Korea F1 | 2018/06/02 01:00 | Jeong Heon Lee v Seong Woon Yu | 6-1,3-6,2-6 |
| ITF Korea F8 | 2016/08/21 02:00 | Woo-Ram Kim v Seong Woon Yu | 6-0,6-2 |
| ITF Korea F8 | 2016/08/20 03:30 | Sung Jun Park v Seong Woon Yu | 6-4,2-6,3-6 |
| ITF Korea F5 | 2018/08/18 02:00 | Anze Loviscek v Dae-Hee Lee | 4-6,1-6 |
| ITF Korea F4 | 2018/08/11 01:00 | Hyeong Don Kim v Dae-Hee Lee | 4-6,6-2,6-4 |
| ITF Korea F3 Qual | 2018/06/17 03:00 | Geun Jun Kim v Dae-Hee Lee | 7-5,7-5 |
| ITF Korea F3 Qual | 2018/06/16 03:30 | Seong Woon Yu v Dae-Hee Lee | 4-6,4-6 |
| Challenger Gwangju Qual | 2017/09/17 01:30 | Lorenzo Frigerio v Dae-Hee Lee | 6-1,6-3 |
| 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 | Dae-Hee Lee v Jeong Heon Lee | 4-6,6-2,4-6 |
| ITF Korea F4 | 2017/06/18 01:00 | Dae-Hee Lee v Sang Yeop Kim | 3-6,4-6 |