Stadium: Court 1 Round: 27 Ground: Hardcourt outdoor
| ITF W15 Yeongwol | 2019/09/05 03:15 | Hwiwon Wi v Ahn, Yu Jin | 3-6,5-7 |
| ITF W15 Yeongwol | 2019/09/04 06:40 | Ahn, Yu Jin v Cho, Sihyeong | 6-4,7-5 |
| ITF W15 Yeongwol | 2019/08/27 04:00 | Ahn, Yu Jin v Rina Saigo | 6-0,1-6,4-6 |
| Gimcheon, Singles Qualifying W-ITF-KOR-05A | 2019/06/19 01:00 | Ahn, Yu Jin v Shiori Fukuda | 6-3,1-6,1-6 |
| Gimcheon, Singles Qualifying W-ITF-KOR-05A | 2019/06/11 05:00 | Sakura Hosogi v Ahn, Yu Jin | 6-0,7-6 |
| ITF W25 Incheon | 2019/05/29 02:20 | Ahn, Yu Jin v Ya-Hsuan Lee | 5-7,1-6 |
| ITF W25 Incheon | 2019/05/28 01:00 | Kanako Morisaki v Ahn, Yu Jin | 6-3,3-6,7-10 |
| ITF W25 Goyang | 2019/05/20 07:05 | Dayeon Back v Ahn, Yu Jin | 6-4,6-0 |
| ITF W15 Yeongwol | 2019/09/05 01:30 | Hong, Seung-Yeon v Momkoonthod, Tamachan | 6-4,6-0 |
| ITF W15 Yeongwol | 2019/09/03 08:00 | Da Ye Kim v Hong, Seung-Yeon | 6-4,3-6,10-12 |
| ITF W15 Yeongwol | 2019/09/02 01:00 | Ji, Sunae v Hong, Seung-Yeon | 2-6,2-6 |
| 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 |