| ITF Women Yeongwol | 2017/09/03 03:00 | Sujin Yoon v Ai Kamiyoshihara | 5-7,2-6 |
| ITF Women Yeongwol | 2017/08/28 01:00 | Sujin Yoon v Da Hye Kim | 1-6,3-6 |
| ITF Women Gimcheon | 2017/06/11 02:00 | Sujin Yoon v Eun Se Jang | 3-6,7-5,0-6 |
| ITF Women Gimcheon | 2017/06/06 01:00 | Jin Ju Lee v Sujin Yoon | 6-2,6-2 |
| ITF Women Gimcheon | 2017/06/05 02:00 | Theiviya Selvarajoo v Sujin Yoon | 2-6,6-3,3-6 |
| ITF Women Gimcheon | 2017/06/04 02:00 | Sujin Yoon v Mi Jeong Kwon | 2-6,6-2,6-4 |
| ITF Women Incheon | 2017/05/16 04:50 | Sunam Jeong v Sujin Yoon | 6-3,6-1 |
| ITF Women Yeongwol | 2016/09/04 01:00 | Hae-Sung Kim v Sujin Yoon | 6-3,6-1 |
| ITF Women Yeongwol | 2017/08/29 01:00 | Eunhye Lee v Hyejin Lee | 6-2,7-6 |
| ITF Women Yeongwol | 2017/08/28 02:00 | Sun Bin Kim v Hyejin Lee | 2-6,2-6 |
| 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 |