Round: 44 Ground: Hardcourt outdoor
| ITF W15 Yeongwol | 2019/09/01 03:00 | Youn, Eunseo v Ji, Sunae | 2-6,1-6 |
| WTA Seoul Qual | 2017/09/16 02:00 | Ji, Sunae v Wongteanchai, Varatchaya | 0-6,0-6 |
| ITF Women Gimcheon | 2017/06/13 06:05 | Ji, Sunae v Hanna Chang | 0-6,0-6 |
| ITF Women Incheon | 2017/05/17 02:00 | Luksika Kumkhum v Ji, Sunae | 6-4,6-2 |
| ITF Women Incheon Qual | 2017/05/15 05:15 | Ji, Sunae v Walters, Alexandra | 6-1,6-3 |
| ITF Women Incheon Qual | 2017/05/14 03:00 | Ji, Sunae v Lee, So-Ra | 6-1,6-1 |
| Changwon, Singles Qualifying W-WITF-KOR-01A | 2017/05/10 03:00 | Ji, Sunae v Kim, SE-Hyun | 3-6,5-7 |
| Changwon, Singles Qualifying W-WITF-KOR-01A | 2017/05/08 02:00 | Lee, Jin Ju v Ji, Sunae | 6-4,0-6,1-6 |
| ITF W15 Yeongwol | 2019/08/28 01:00 | Hong, Seung-Yeon v Kim, Da Hye | 3-6,2-6 |
| ITF W15 Yeongwol | 2019/08/27 02:00 | Hong, Seung-Yeon v Yun, Hyeran | 7-5,6-1 |
| ITF W15 Yeongwol | 2019/08/26 02:00 | Hong, Seung-Yeon v Park, Eunyeong | 6-0,6-1 |
| ITF W15 Yeongwol | 2019/08/25 04:00 | Hong, Seung-Yeon v Kang, Choyeon | 6-1,6-1 |
| Daegu, Singles W-ITF-KOR-04A | 2019/06/03 01:00 | Hong, Seung-Yeon v Yoshitomi, Aiko | 4-6,4-6 |
| ITF W25 Incheon | 2019/05/27 03:10 | Pei-Chi Lee v Hong, Seung-Yeon | 6-3,4-6,10-7 |
| ITF W25 Goyang | 2019/05/21 02:15 | Hong, Seung-Yeon v Yeon Woo Ku | 0-6,2-6 |
| ITF W25 Goyang | 2019/05/20 05:05 | Jeong, Sunam v Hong, Seung-Yeon | 6-2,3-6,2-10 |