Stadium: Court 4 Round: 44 Ground: Hardcourt outdoor
| ITF Korea F3 Qual | 2017/06/12 03:00 | Jae Hwan Kim v Hyeong Jin Cho | 6-1,6-0 |
| ITF Korea F3 Qual | 2017/06/11 03:00 | Jaeheon Yoon v Hyeong Jin Cho | 2-6,1-6 |
| ITF Korea F3 Qual | 2017/06/10 02:00 | Hyeong Jin Cho v Min Hyun Lee | 7-6,7-6 |
| ITF Korea F2 | 2017/06/07 05:55 | Ji Hoon Son v Hyeong Jin Cho | 6-1,6-1 |
| ITF Korea F2 Qual | 2017/06/05 03:00 | Hyeong Jin Cho v Byeonghun Kim | 6-1,1-6,7-5 |
| ITF Korea F2 Qual | 2017/06/04 04:30 | Hyeong Jin Cho v Young Min Joo | 3-6,6-4,7-5 |
| ITF Korea F1 Qual | 2017/05/27 02:00 | Dong-Hak Sin v Hyeong Jin Cho | 6-3,6-4 |
| Challenger Seoul Qual | 2017/05/06 01:00 | Chan-Yeong Oh v Hyeong Jin Cho | 6-1,6-2 |
| Challenger Gwangju Qual | 2017/09/16 02:55 | Seungri Choi v Miliaan Niesten | 2-6,4-6 |
| ITF Korea F5 | 2017/06/28 01:00 | Seungri Choi v Min-Kyu Song | 1-6,2-6 |
| ITF Korea F4 | 2017/06/20 01:00 | Makoto Ochi v Seungri Choi | 6-1,6-1 |
| ITF Korea F3 | 2017/06/14 01:00 | Seungri Choi v Young-Hoon Jeong | 3-6,0-6 |
| ITF Korea F2 | 2017/06/07 04:20 | Oh-Hee Kwon v Seungri Choi | 6-0,6-1 |
| ITF Korea F1 | 2017/05/30 01:00 | Jae-Won Choi v Seungri Choi | 6-3,6-1 |
| ITF Vietnam F8 | 2016/09/18 04:00 | Seungri Choi v Shaheed Alam | 6-2,6-1 |
| ITF Vietnam F8 | 2016/09/18 03:00 | Seungri Choi v Rio Noguchi | 6-1,6-7,2-6 |