Stadium: Court 9 Round: 62 Ground: Hardcourt outdoor
| ITF Korea F5 | 2018/08/20 01:00 | Jang, Woo Hyeok v Kim, Byeonghun | 6-1,6-2 |
| ITF Korea F4 | 2018/08/11 01:00 | Han, Seong Jae v Kim, Byeonghun | 6-2,4-6,6-3 |
| Korea F3, Singles Qualifying | 2018/06/16 03:30 | Sanhui Shin v Kim, Byeonghun | 6-2,6-0 |
| ITF Korea F2 | 2018/06/09 02:00 | Kim, Byeonghun v Kim, Yu-Seob | 2-6,6-3,1-6 |
| ITF Korea F1 | 2018/06/04 01:00 | Cho, Hyeong Jin v Kim, Byeonghun | 1-6,6-3,7-5 |
| ITF Korea F1 | 2018/06/03 02:00 | Kim, Byeonghun v Yoon, Jaeheon | 6-1,6-2 |
| ITF Korea F1 | 2018/06/02 02:00 | Lee, Min Hyun v Kim, Byeonghun | 6-2,3-6,0-6 |
| ITF Korea F5 | 2017/06/26 03:30 | Kim, Byeonghun v Park, Sung Jun | 0-6,6-3,0-6 |