Stadium: Court 7 Round: 44
| ITF Women Gyeongsan Qual | 2018/06/12 01:00 | Fatima Bizhukova v You-Na Sul | 6-1,6-0 |
| ITF Women Gyeongsan Qual | 2018/06/11 01:00 | You-Na Sul v So-Hee Yoon | 6-1,6-3 |
| ITF Women Changwon | 2018/05/22 04:15 | Victoria Rodriguez v You-Na Sul | 5-7,7-5,6-1 |
| ITF Women Incheon Qual | 2018/05/13 01:00 | You-Na Sul v Yu Jin Ahn | 4-6,3-6 |
| ITF Women Goyang Qual | 2018/05/07 01:30 | Akiko Omae v You-Na Sul | 6-4,6-3 |
| ITF Women Yeongwol | 2017/09/07 03:40 | Seung-Yeon Hong v You-Na Sul | 6-1,6-4 |
| ITF Women Yeongwol | 2017/09/06 01:00 | Dami Lee v You-Na Sul | 3-6,2-6 |
| ITF Women Yeongwol | 2017/09/05 01:00 | You-Na Sul v Subin Park | 7-6,7-6 |
| ITF Women Gyeongsan Qual | 2018/06/11 01:00 | Eunhye Lee v Seunghyun Lee | 2-6,6-1,6-1 |
| ITF Women Sangju | 2018/06/06 06:50 | Seunghyun Lee v Louise Lampla | 4-6,5-7 |
| ITF Women Sangju Qual | 2018/06/04 02:00 | Hyejin Lee v Seunghyun Lee | 4-6,7-5,2-6 |
| ITF Women Incheon Qual | 2018/05/13 03:30 | Se-Hyun Kim v Seunghyun Lee | 6-2,6-0 |
| ITF Women Goyang Qual | 2018/05/07 00:30 | Jin Yoo v Seunghyun Lee | 6-2,6-2 |
| ITF Women Gimcheon | 2017/06/05 02:00 | Sari Baba v Seunghyun Lee | 6-0,6-2 |
| ITF Women Gimcheon | 2017/06/04 02:00 | Seunghyun Lee v Dabin Oh | 6-7,6-1,6-3 |
| ITF Women Sangju | 2017/05/30 02:45 | Sari Baba v Seunghyun Lee | 7-5,6-1 |