Stadium: Court 15 Round: 54 Ground: Hardcourt outdoor
| ITF Women Goyang Qual | 2017/05/21 01:00 | Jeongyun Lee v You-Na Sul | 2-6,3-6 |
| ITF W15 - Gimcheon | 2019/06/11 01:00 | Seon Young Um v Jeongyun Lee | 6-1,6-7,10-4 |
| ITF W15 - Gimcheon | 2019/06/10 01:00 | Jeongyun Lee v Suzuho Oshino | 6-3,3-6,10-7 |
| ITF Women Yeongwol | 2018/09/05 01:00 | Jeongyun Lee v Hwiwon Wi | 5-7,5-7 |
| ITF Women Yeongwol | 2018/08/29 03:35 | Yuka Hosoki v Jeongyun Lee | 2-6,6-7 |
| ITF Women Gimcheon | 2018/08/21 01:00 | Dabin Oh v Jeongyun Lee | 6-4,6-3 |
| ITF Women Gimcheon | 2018/08/20 01:00 | Jeongyun Lee v Seo Yeon Park | 6-2,6-2 |
| ITF Women Daegu Qual | 2018/06/17 01:00 | Hyojung Yea v Jeongyun Lee | 6-2,6-1 |
| ITF Women Gyeongsan Qual | 2018/06/10 03:30 | Satsuki Koike v Jeongyun Lee | 7-6,6-1 |
| ITF W15 - Gimcheon | 2019/06/11 01:00 | Eunhye Lee v You-Na Sul | 6-1,6-4 |
| ITF W25 - Changwon | 2019/05/15 02:55 | Se-Hyun Kim v You-Na Sul | 6-0,6-1 |
| ITF W25 - Changwon | 2019/05/14 01:00 | Eunji Lim v You-Na Sul | 3-6,6-4,4-10 |
| ITF W25 - Changwon | 2019/05/13 02:50 | Handeul Kim v You-Na Sul | 0-6,0-6 |
| ITF Women Yeongwol | 2018/08/29 01:00 | Reina Takahashi v You-Na Sul | 6-1,2-6,7-5 |
| ITF Women Gimcheon | 2018/08/23 02:20 | You-Na Sul v Ramya Natarajan | 6-7,6-7 |
| ITF Women Gimcheon | 2018/08/22 01:00 | Angelina Gabueva v You-Na Sul | 5-7,6-7 |
| ITF Women Gimcheon | 2018/08/21 02:00 | Nicole Khirin v You-Na Sul | 1-6,0-6 |