| ITF Women Yeongwol | 2018/09/04 01:00 | Seunghyun Lee v Eun Se Jang | 6-2,6-1 |
| ITF Women Yeongwol | 2018/09/03 01:00 | Mi Jeong Kwon v Seunghyun Lee | 4-6,2-6 |
| ITF Women Yeongwol | 2018/09/02 01:00 | Sun Bin Kim v Seunghyun Lee | 1-6,2-6 |
| ITF Women Yeongwol | 2018/08/28 02:00 | Seon Young Um v Seunghyun Lee | 6-4,7-6 |
| ITF Women Gimcheon | 2018/08/20 02:00 | Subin Park v Seunghyun Lee | 6-3,6-0 |
| ITF Women Gimcheon | 2018/08/12 01:00 | Ramya Natarajan v Seunghyun Lee | 6-2,6-2 |
| ITF Women Daegu Qual | 2018/06/17 02:00 | You-Na Sul v Seunghyun Lee | 6-3,6-1 |
| ITF Women Gyeongsan Qual | 2018/06/11 01:00 | Eunhye Lee v Seunghyun Lee | 2-6,6-1,6-1 |
| ITF Women Daegu | 2018/06/20 01:00 | So-Ra Lee v Misaki Doi | 1-6,2-6 |
| ITF Women Singapore | 2018/06/12 06:20 | Hiroko Kuwata v So-Ra Lee | 6-2,7-6 |
| ITF Women Singapore Qual | 2018/06/10 04:25 | So-Ra Lee v Pamela Montez | 6-2,6-3 |
| ITF Women Singapore Qual | 2018/06/09 05:00 | So-Ra Lee v Zara Brankovic | 6-2,6-2 |
| ITF Women Changwon | 2018/05/25 01:00 | So-Ra Lee v Ya-Hsuan Lee | 4-6,4-6 |
| ITF Women Changwon | 2018/05/24 01:00 | Alina Silich v So-Ra Lee | 0-6,2-6 |
| ITF Women Changwon | 2018/05/23 01:00 | Maia Lumsden v So-Ra Lee | 2-6,3-6 |
| ITF Women Changwon Qual | 2018/05/22 01:00 | So-Ra Lee v Yuqi Sheng | 6-1,7-5 |