Round: 62 Ground: Hardcourt outdoor
| ITF Korea F2 Qual | 2017/06/03 02:00 | Jung-Woong Na v Sung Jun Park | 6-4,6-3 |
| ITF Korea F1 | 2017/05/31 04:50 | Dong-Hak Sin v Sung Jun Park | 4-6,6-2,6-3 |
| ITF Korea F1 Qual | 2017/05/29 04:45 | A-Ram Kim v Sung Jun Park | 2-6,1-6 |
| ITF Korea F1 Qual | 2017/05/28 03:30 | Sung Jun Park v Yu-Seob Kim | 6-0,6-1 |
| Challenger Gimcheon Qual | 2017/04/29 06:05 | Sung Jun Park v Luke Saville | 1-6,0-6 |
| ITF Thailand F4 | 2016/12/10 07:00 | Keisuke Numajiri v Sung Jun Park | 7-6,2-6,6-0 |
| ITF Thailand F4 | 2016/12/10 02:30 | Tonkla Mulada v Sung Jun Park | 3-6,1-6 |
| ITF Korea F8 | 2016/09/03 02:00 | Woo-Ram Kim v Sung Jun Park | 6-4,4-6,6-1 |
| ITF Korea F2 | 2017/06/08 03:30 | Sang Yeop Kim v Cheong-Eui Kim | 2-6,1-6 |
| ITF Korea F2 | 2017/06/07 05:25 | Nutdanai Sincharoenwattana v Sang Yeop Kim | 3-6,3-6 |
| ITF Korea F2 Qual | 2017/06/05 03:00 | Sang Yeop Kim v In Kyo Jeong | 6-4,6-2 |
| ITF Korea F2 Qual | 2017/06/04 03:00 | Jae Hwan Kim v Sang Yeop Kim | 5-7,2-6 |
| ITF Korea F2 Qual | 2017/06/03 03:00 | Sang Yeop Kim v Dukyoung Kim | 6-3,3-6,6-4 |
| ITF Korea F1 Qual | 2017/05/28 03:30 | Ku Keon Kang v Sang Yeop Kim | 7-5,6-2 |
| ITF Korea F1 Qual | 2017/05/27 02:00 | Hyeong Don Kim v Sang Yeop Kim | 1-6,2-6 |
| ITF Korea F8 | 2016/08/27 02:00 | Sora Fukuda v Sang Yeop Kim | 6-4,6-2 |