| ITF Women Goyang Qual | 2018/05/07 02:30 | Ching-Wen Hsu v Dayeon Back | 6-4,6-1 |
| ITF Women Goyang Qual | 2018/05/06 06:15 | So-Hee Yoon v Dayeon Back | 0-6,0-6 |
| ITF Women Yeongwol | 2017/08/28 02:00 | Do Hee Bae v Dayeon Back | 6-2,6-3 |
| ITF Women Gimcheon | 2017/06/11 03:00 | Yeon Woo Ku v Dayeon Back | 6-1,6-2 |
| ITF Women Gimcheon | 2017/06/07 01:00 | Joanna Carswell v Dayeon Back | 4-6,7-6,7-5 |
| ITF Women Gimcheon | 2017/06/06 01:00 | Dayeon Back v Sung Hee Kim | 6-2,6-3 |
| ITF Women Gimcheon | 2017/06/05 02:00 | Hyojung Yea v Dayeon Back | 1-6,2-6 |
| ITF Women Changwon Qual | 2018/05/20 04:30 | Chang Liu v Hwiwon Wi | 6-3,6-3 |