Round: 54 Ground: Hardcourt outdoor
| ITF Korea F5 | 2018/08/18 01:00 | Jung, Ki-Su v Jeong Heon Lee | 6-3,6-1 |
| ITF Korea F4 | 2018/08/14 04:40 | Jeong Heon Lee v Mark Whitehouse | 0-6,0-6 |
| ITF Korea F4 | 2018/08/13 01:00 | Kim, Cheong Hwi v Jeong Heon Lee | 3-6,6-3,3-6 |
| ITF Korea F4 | 2018/08/12 02:00 | Jeong Heon Lee v Kumthonkittikul, W. | 6-2,6-3 |
| ITF Korea F4 | 2018/08/11 01:00 | Jeong Heon Lee v Jin, Hyun Bin | 6-1,6-2 |
| ITF Korea F2 | 2018/06/10 06:30 | Wang, Chukang v Jeong Heon Lee | 2-6,6-3,6-0 |
| ITF Korea F2 | 2018/06/09 02:00 | Jeong Heon Lee v Joo, Y. | 6-4,6-1 |
| ITF Korea F1 | 2018/06/02 01:00 | Jeong Heon Lee v Yu, Seong Woon | 6-1,3-6,2-6 |
| ITF - M15 Daegu | 2019/06/03 01:00 | Kim, Kangjae v Han, Seong Jae | 6-3,6-2 |
| ITF Korea F6 | 2018/08/30 04:05 | Na, Jung-Woong v Han, Seong Jae | 6-3,6-1 |
| ITF Korea F6 | 2018/08/28 03:50 | Han, Seong Jae v Shin, Eun Chong | 6-4,6-4 |
| ITF Korea F5 | 2018/08/21 01:00 | Nam, Ji Sung v Han, Seong Jae | 6-1,6-0 |
| ITF Korea F5 | 2018/08/20 01:00 | Han, Seong Jae v Im, Seong Taek | 2-6,2-6 |
| ITF Korea F5 | 2018/08/19 02:00 | Han, Jin Sung v Han, Seong Jae | 4-6,5-7 |
| ITF Korea F5 | 2018/08/18 03:00 | Seon Yong Han v Han, Seong Jae | 4-6,3-6 |
| ITF Korea F4 | 2018/08/12 02:00 | Im, Seong Taek v Han, Seong Jae | 7-5,6-2 |