Round: 44 Ground: Hardcourt outdoor
| ITF Korea F2 Qual | 2017/06/05 03:00 | Cho, Hyeong Jin v Kim, Byeonghun | 6-1,1-6,7-5 |
| ITF Korea F1 | 2018/06/03 02:00 | Seol, Jae-Min v Cho, Hyeong Jin | 3-6,2-6 |
| ITF Korea F1 | 2018/06/02 01:00 | Cho, Hyeong Jin v Choi, Seungri | 6-2,6-4 |
| Korea F3, Singles Qualifying | 2017/06/12 03:00 | Jae Hwan Kim v Cho, Hyeong Jin | 6-1,6-0 |
| Korea F3, Singles Qualifying | 2017/06/11 03:00 | Yoon, Jaeheon v Cho, Hyeong Jin | 2-6,1-6 |
| Korea F3, Singles Qualifying | 2017/06/10 02:00 | Cho, Hyeong Jin v Lee, Min Hyun | 7-6,7-6 |
| ITF Korea F2 | 2017/06/07 05:55 | Son, Ji Hoon v Cho, Hyeong Jin | 6-1,6-1 |
| ITF Korea F2 Qual | 2017/06/05 03:00 | Cho, Hyeong Jin v Kim, Byeonghun | 6-1,1-6,7-5 |
| ITF Korea F2 Qual | 2017/06/04 04:30 | Cho, Hyeong Jin v Joo, Y. | 3-6,6-4,7-5 |
| 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 |
| ITF Korea F4 | 2017/06/19 01:00 | Sin, Dong-Hak v Kim, Byeonghun | 6-3,6-1 |
| ITF Korea F2 Qual | 2017/06/05 03:00 | Cho, Hyeong Jin v Kim, Byeonghun | 6-1,1-6,7-5 |
| ITF Korea F2 Qual | 2017/06/04 04:30 | Kim, Byeonghun v Kim, A-Ram | 4-6,6-2,6-4 |
| ITF Korea F2 Qual | 2017/06/03 02:00 | Kim, Byeonghun v Shin, Geon Ju | 4-6,6-1,6-0 |
| ITF Korea F1 | 2017/05/30 02:40 | Kim, Byeonghun v Makoto Ochi | 2-6,0-6 |