Round: 44 Ground: Hardcourt outdoor
| ITF Women Daegu Qual | 2018/06/17 02:00 | So-Hee Yoon v Haine Ogata | 3-6,1-6 |
| ITF Women Gyeongsan Qual | 2018/06/11 01:00 | You-Na Sul v So-Hee Yoon | 6-1,6-3 |
| ITF Women Sangju Qual | 2018/06/03 01:00 | Sujin Yoon v So-Hee Yoon | 2-6,6-3,6-2 |
| ITF Women Incheon | 2018/05/15 04:25 | So-Hee Yoon v Berfu Cengiz | 2-6,2-6 |
| ITF Women Goyang Qual | 2018/05/06 06:15 | So-Hee Yoon v Dayeon Back | 0-6,0-6 |
| ITF Women Yeongwol | 2017/08/27 02:00 | Subin Park v So-Hee Yoon | 4-6,6-4,7-6 |
| ITF Women Gimcheon | 2017/06/11 02:00 | So-Hee Yoon v Ho Ching Wu | 4-6,4-6 |
| ITF Women Incheon Qual | 2017/05/15 02:00 | So-Hee Yoon v Desirae Krawczyk | 1-6,1-6 |
| ITF W25 Daegu | 2019/06/03 01:00 | Michika Ozeki v Sandeul Kim | 6-1,6-0 |
| ITF W25 Changwon | 2019/05/13 01:00 | Kotomi Takahata v Sandeul Kim | 6-2,6-1 |
| ITF Women Yeongwol | 2018/09/03 02:00 | Sandeul Kim v Dami Lee | 1-6,0-6 |
| ITF Women Gimcheon | 2018/08/19 01:00 | Chihiro Takayama v Sandeul Kim | 6-3,6-2 |
| ITF Women Gimcheon | 2018/08/12 01:00 | Eunseo Kim v Sandeul Kim | 6-3,6-4 |
| ITF Women Daegu Qual | 2018/06/17 01:00 | Sandeul Kim v Nagisa Morimoto | 1-6,0-6 |