| ITF Women Sangju Qual | 2018/06/03 02:00 | Jeong, Jooyeon v Sim, Mi Seong | 0-6,4-6 |
| Changwon, Singles Qualifying W-WITF-KOR-01A | 2018/05/20 04:30 | Kim, S. v Jeong, Jooyeon | 6-1,6-2 |
| ITF Women Incheon Qual | 2018/05/13 02:00 | Еунйонг Парк v Jeong, Jooyeon | 6-2,6-2 |
| ITF Women Goyang Qual | 2018/05/06 05:15 | Ким, Хэ-Сунь v Jeong, Jooyeon | 6-1,6-0 |
| ITF Women Yeongwol | 2017/09/03 02:00 | Ли, Хан-Бит v Jeong, Jooyeon | 6-3,6-2 |
| ITF Women Gimcheon | 2017/06/11 02:00 | Dami Lee v Jeong, Jooyeon | 6-1,6-1 |
| ITF Women Goyang Qual | 2017/05/21 01:00 | Линг Чжан v Jeong, Jooyeon | 6-0,6-0 |
| ITF Women Incheon Qual | 2017/05/14 02:00 | Jeong, Jooyeon v Nor, Hoyeon | 1-6,1-6 |
| ITF Women Sangju Qual | 2018/06/05 01:00 | Хо Чинг Ву v Yoon, Sujin | 6-1,6-0 |
| ITF Women Sangju Qual | 2018/06/03 01:00 | Yoon, Sujin v Yoon, So-Hee | 2-6,6-3,6-2 |
| ITF Women Incheon Qual | 2018/05/13 02:00 | Yoon, Sujin v Дабин Ким | 3-6,6-0,4-6 |
| ITF Women Goyang Qual | 2018/05/06 05:15 | Yoon, Sujin v Хьеджин Ли | 2-6,6-3,5-7 |
| ITF Women Yeongwol | 2017/09/03 03:00 | Yoon, Sujin v Аи Камийошихара | 5-7,2-6 |
| ITF Women Yeongwol | 2017/08/28 01:00 | Yoon, Sujin v Да-Хье Ким | 1-6,3-6 |
| ITF Women Gimcheon | 2017/06/11 02:00 | Yoon, Sujin v Еун Се Чан | 3-6,7-5,0-6 |
| ITF Women Gimcheon | 2017/06/06 01:00 | Ли, Джин Ю v Yoon, Sujin | 6-2,6-2 |