Stadium: Court 14 Round: 62
| ITF Women Gimcheon | 2018/08/12 01:00 | Jeong, Jooyeon v Аи Камийошихара | 0-6,0-6 |
| ITF Women Gyeongsan Qual | 2018/06/10 03:30 | Jeong, Jooyeon v Yoon, Sujin | 0-6,1-6 |
| 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 Gimcheon | 2018/08/12 01:00 | Бэ, До Хи v Хандеул, Ким | 6-1,6-4 |