Stadium: Court 1 Round: 44
| ITF Women Goyang Qual | 2018/05/07 00:30 | Maddison Inglis v Yu Jin Ahn | 4-6,5-7 |
| ITF Women Goyang Qual | 2018/05/06 05:15 | Yu Jin Ahn v Hyeran Yun | 6-0,6-4 |
| WTA Seoul Qual | 2017/09/16 03:15 | Yu Jin Ahn v Katy Dunne | 5-7,1-6 |
| ITF Women Yeongwol | 2017/09/07 03:10 | Ya-Hsuan Lee v Yu Jin Ahn | 6-2,6-2 |
| ITF Women Yeongwol | 2017/09/06 01:00 | Yu Jin Ahn v Dabin Oh | 6-4,6-4 |
| ITF Women Gimcheon | 2017/06/13 05:15 | So Hee Jung v Yu Jin Ahn | 0-6,6-2,7-6 |
| ITF Women Gimcheon | 2017/06/05 02:00 | Yu Jin Ahn v Se Jin Lee | 1-6,4-6 |
| ITF Women Sangju | 2017/06/02 01:30 | Yu Jin Ahn v Ji-Hee Choi | 2-6,2-6 |
| ITF Women Goyang Qual | 2018/05/07 01:30 | Seo-Kyung Kang v Dominique Schaefer | 6-3,3-6,6-4 |
| ITF Women Goyang Qual | 2018/05/06 05:15 | Madison Frahn v Seo-Kyung Kang | 4-6,0-6 |
| ITF Women Yeongwol | 2017/09/05 02:00 | Seo-Kyung Kang v Ching-Wen Hsu | 6-3,2-6,3-6 |
| ITF Women Yeongwol | 2017/08/31 02:50 | Pei-Chi Lee v Seo-Kyung Kang | 7-6,6-4 |
| ITF Women Yeongwol | 2017/08/30 06:10 | Alexandra Walters v Seo-Kyung Kang | 3-6,5-7 |
| ITF Women Goyang | 2017/05/24 01:00 | Min-Hwa Yu v Seo-Kyung Kang | 4-6,6-4,6-1 |
| ITF Women Goyang Qual | 2017/05/22 03:35 | Hyejin Lee v Seo-Kyung Kang | 6-7,3-6 |
| ITF Women Goyang Qual | 2017/05/21 05:30 | Su Yeon Chun v Seo-Kyung Kang | 6-4,6-7,1-6 |