| ITF Women Sangju Qual | 2018/06/03 02:00 | Jooyeon Jeong v Mi Seong Sim | 0-6,4-6 |
| ITF Women Changwon Qual | 2018/05/20 04:30 | SinHee Kim v Jooyeon Jeong | 6-1,6-2 |
| ITF Women Incheon Qual | 2018/05/13 02:00 | Eunyeong Park v Jooyeon Jeong | 6-2,6-2 |
| ITF Women Goyang Qual | 2018/05/06 05:15 | Hae-Sung Kim v Jooyeon Jeong | 6-1,6-0 |
| ITF Women Yeongwol | 2017/09/03 02:00 | Han-Bit Lee v Jooyeon Jeong | 6-3,6-2 |
| ITF Women Gimcheon | 2017/06/11 02:00 | Dami Lee v Jooyeon Jeong | 6-1,6-1 |
| ITF Women Goyang Qual | 2017/05/21 01:00 | Ling Zhang v Jooyeon Jeong | 6-0,6-0 |
| ITF Women Incheon Qual | 2017/05/14 02:00 | Jooyeon Jeong v Hoyeon Nor | 1-6,1-6 |
| ITF Women Sangju Qual | 2018/06/05 01:00 | Ho Ching Wu v Sujin Yoon | 6-1,6-0 |
| ITF Women Sangju Qual | 2018/06/03 01:00 | Sujin Yoon v So-Hee Yoon | 2-6,6-3,6-2 |
| ITF Women Incheon Qual | 2018/05/13 02:00 | Sujin Yoon v Dabin Kim | 3-6,6-0,4-6 |
| ITF Women Goyang Qual | 2018/05/06 05:15 | Sujin Yoon v Hyejin Lee | 2-6,6-3,5-7 |
| 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 |