Round: 44 Ground: Hardcourt outdoor
| WTA Seoul Qual | 2017/09/16 02:00 | Sunae Ji v Varatchaya Wongteanchai | 0-6,0-6 |
| ITF Women Gimcheon | 2017/06/13 06:05 | Sunae Ji v Hanna Chang | 0-6,0-6 |
| ITF Women Incheon | 2017/05/17 02:00 | Luksika Kumkhum v Sunae Ji | 6-4,6-2 |
| ITF Women Incheon Qual | 2017/05/15 05:15 | Sunae Ji v Alexandra Walters | 6-1,6-3 |
| ITF Women Incheon Qual | 2017/05/14 03:00 | Sunae Ji v So-Ra Lee | 6-1,6-1 |
| ITF Women Changwon Qual | 2017/05/10 03:00 | Sunae Ji v Se-Hyun Kim | 3-6,5-7 |
| ITF Women Changwon Qual | 2017/05/08 02:00 | Jin Ju Lee v Sunae Ji | 6-4,0-6,1-6 |
| ITF Women Changwon Qual | 2017/05/07 01:00 | Sunae Ji v Sumin Kim | 6-3,6-2 |
| ITF Women Yeongwol | 2018/09/06 03:00 | Seung-Yeon Hong v Sunam Jeong | 4-6,3-6 |
| ITF Women Yeongwol | 2018/09/05 03:10 | Se Jin Lee v Seung-Yeon Hong | 3-6,3-6 |
| ITF Women Gimcheon | 2018/08/17 01:00 | Seung-Yeon Hong v Joanna Garland | 5-7,1-6 |
| ITF Women Gimcheon | 2018/08/16 01:00 | Seung-Yeon Hong v Yeong Won Jeong | 7-5,6-4 |
| ITF Women Gimcheon | 2018/08/15 03:00 | Seung-Yeon Hong v Ai Kamiyoshihara | 6-3,6-0 |
| ITF Women Tianjin Qual | 2018/07/08 03:10 | Beatrice Gumulya v Seung-Yeon Hong | 6-0,7-6 |
| ITF Women Naiman | 2018/07/04 04:10 | Meiling Wang v Seung-Yeon Hong | 6-4,6-0 |
| ITF Women Naiman | 2018/07/02 03:55 | Seung-Yeon Hong v Kwan Yau Ng | 6-3,7-5 |