Stadium: Court 5 Round: 25 Ground: Hardcourt outdoor
| ITF Women Yeongwol | 2017/09/03 04:00 | Ye Jin Kim v Youna Kim | 6-2,6-1 |
| ITF W15 Gimcheon | 2019/06/19 02:45 | Sunam Jeong v Dayeon Back | 7-6,6-4 |
| ITF W15 Gimcheon | 2019/06/18 01:00 | Heejin Han v Dayeon Back | 1-6,2-6 |
| ITF W15 Gimcheon | 2019/06/17 06:05 | Ah Song v Dayeon Back | 1-6,2-6 |
| ITF W15 Gimcheon | 2019/06/12 01:00 | Ayumi Koshiishi v Dayeon Back | 7-5,6-2 |
| ITF W15 Gimcheon | 2019/06/11 01:00 | Honoka Kobayashi v Dayeon Back | 6-4,0-6,4-10 |
| ITF W15 Gimcheon | 2019/06/10 02:20 | Ah Song v Dayeon Back | 5-7,0-6 |
| ITF W25 Daegu | 2019/06/03 01:00 | Pei-Chi Lee v Dayeon Back | 3-6,7-6,13-11 |
| ITF W25 Goyang | 2019/05/23 03:30 | Jennifer Elie v Dayeon Back | 7-6,6-4 |