| ITF Korea F4 | 2018/08/11 01:00 | Kim, Hyeong Don v Lee, Dae-Hee | 4-6,6-2,6-4 |
| Korea F3, Singles Qualifying | 2018/06/18 06:30 | Kim, Hyeong Don v Kwon, OH-Hee | 2-6,2-6 |
| Korea F3, Singles Qualifying | 2018/06/17 04:30 | Ku Keon Kang v Kim, Hyeong Don | 4-6,6-1,4-6 |
| Korea F3, Singles Qualifying | 2018/06/16 03:30 | Kim, Hyeong Don v Kim, A-Ram | 6-3,6-0 |
| ITF Korea F2 | 2018/06/11 09:20 | Kim, Hyeong Don v Chiu, Yu Hsiang | 3-6,5-7 |
| ITF Korea F2 | 2018/06/09 03:00 | Kim, Hyeong Don v Kim, A-Ram | 6-2,6-1 |
| ITF Korea F1 | 2018/06/04 01:00 | Jeong, Young-Hoon v Kim, Hyeong Don | 6-2,7-5 |
| ITF Korea F1 | 2018/06/02 03:30 | Kim, Hyeong Don v Shin, Eun Chong | 6-2,6-0 |