| ITF Women Yeongwol | 2017/08/27 02:00 | Sun Bin Kim v Yubean Lee | 6-1,6-3 |
| ITF Women Yeongwol | 2017/08/27 03:00 | Hyejin Lee v Ai Kamiyoshihara | 6-4,7-6 |
| ITF Women Gimcheon | 2017/06/07 01:00 | Aiko Yoshitomi v Hyejin Lee | 7-5,6-1 |
| ITF Women Gimcheon | 2017/06/06 01:00 | Lavinia Tananta v Hyejin Lee | 6-7,6-4,4-6 |
| ITF Women Gimcheon | 2017/06/05 02:00 | Ryeong Gyeong Park v Hyejin Lee | 2-6,3-6 |
| ITF Women Gimcheon | 2017/06/04 03:00 | Hyejin Lee v Ho Ching Wu | 6-2,2-6,6-2 |
| ITF Women Sangju | 2017/05/30 02:25 | Hyejin Lee v Hanna Chang | 3-6,1-6 |
| ITF Women Sangju | 2017/05/28 05:00 | Hyejin Lee v Subin Park | 3-6,6-2,6-2 |
| ITF Women Goyang Qual | 2017/05/22 03:35 | Hyejin Lee v Seo-Kyung Kang | 6-7,3-6 |