| Challenger Busan Qual | 2017/05/13 02:00 | Kim, Young Seok v Jeamoon Lee | 3-6,3-6 |
| ITF Korea F4 | 2017/06/21 04:30 | Noh, Sang-Woo v Jeamoon Lee | 2-6,5-7 |
| ITF Korea F4 | 2017/06/20 02:30 | Jeamoon Lee v Choi, Jae-Won | 6-1,6-3 |
| ITF Korea F3 | 2017/06/14 03:05 | Jeamoon Lee v Chung, Hong | 4-6,6-3,5-7 |
| ITF Korea F2 | 2017/06/11 02:00 | Nguyen, Daniel v Jeamoon Lee | 6-3,6-4 |
| ITF Korea F2 | 2017/06/10 02:00 | Kim, Cheong-Eui v Jeamoon Lee | 6-1,5-7,4-6 |
| ITF Korea F2 | 2017/06/09 02:00 | Son, Ji Hoon v Jeamoon Lee | 4-6,3-6 |
| ITF Korea F2 | 2017/06/08 04:40 | Jeamoon Lee v Makoto Ochi | 6-4,6-4 |
| ITF Korea F2 | 2017/06/07 05:45 | Jeamoon Lee v Na, Jung-Woong | 7-6,6-3 |
| ITF Korea F4 | 2017/06/21 02:00 | Kim, Woo-Ram v Kim, Young Seok | 3-6,3-6 |
| ITF Korea F3 | 2017/06/15 01:00 | Lee, Tae-Woo v Kim, Young Seok | 6-3,6-4 |
| ITF Korea F3 | 2017/06/13 02:00 | Kim, Young Seok v Hong, Seong Chan | 6-2,6-4 |
| ITF Korea F2 | 2017/06/07 04:10 | Kim, Young Seok v Kim, Cheong-Eui | 1-6,6-7 |
| ITF Korea F1 | 2017/05/31 01:00 | Kim, Young Seok v Chung, Hong | 1-6,4-6 |
| Challenger Busan Qual | 2017/05/13 02:00 | Kim, Young Seok v Jeamoon Lee | 3-6,3-6 |
| Challenger Seoul | 2017/05/11 03:30 | Soeda, Go v Kim, Young Seok | 6-2,6-4 |
| Challenger Seoul | 2017/05/09 05:50 | Ward, Alexander v Kim, Young Seok | 3-6,4-6 |