Stadium: Indoor 3 Round: 54 Ground: Hardcourt outdoor
| ITF W25 Goyang | 2019/05/20 01:00 | Yun, Hyeran v Ayumi Koshiishi | 4-6,3-6 |
| ITF Women Yeongwol | 2018/08/29 02:55 | Hanna Chang v Yun, Hyeran | 6-3,6-2 |
| ITF Women Yeongwol | 2018/08/28 02:00 | Ashmitha Easwaramurthi v Yun, Hyeran | 1-6,2-6 |
| ITF Women Yeongwol | 2018/08/27 04:30 | Yoo, Jin v Yun, Hyeran | 5-7,1-6 |
| Changwon, Singles Qualifying W-WITF-KOR-01A | 2018/05/21 03:30 | Yun, Hyeran v Park, Sang Hee | 3-6,5-7 |
| Changwon, Singles Qualifying W-WITF-KOR-01A | 2018/05/20 06:00 | Yun, Hyeran v Ji Min Park | 6-3,6-1 |
| ITF Women Goyang Qual | 2018/05/06 05:15 | Ahn, Yu Jin v Yun, Hyeran | 6-0,6-4 |
| ITF Women Sangju | 2017/05/28 01:00 | Yun, Hyeran v Oh, Soo Bin | 4-6,6-4,2-6 |
| ITF W25 Goyang | 2019/05/23 02:00 | Lumsden, Maia v Jeong, Yeong Won | 6-1,6-1 |
| ITF W25 Goyang | 2019/05/22 01:00 | Hanna Chang v Jeong, Yeong Won | 3-6,6-3,4-6 |
| ITF W25 Changwon | 2019/05/15 01:00 | Ya-Hsuan Lee v Jeong, Yeong Won | 6-0,6-2 |
| ITF W25 Changwon | 2019/05/14 01:00 | Jeong, Yeong Won v Dayeon Back | 6-4,6-1 |
| ITF W25 Changwon | 2019/05/13 04:15 | Jeong, Yeong Won v Chun, Su Yeon | 6-0,6-2 |
| Antalya, Singles Qualifying W-WITF-TUR-08A | 2018/12/14 10:05 | Jeong, Yeong Won v Monica Robinson | 6-3,6-2 |
| Antalya, Singles Qualifying W-WITF-TUR-08A | 2018/12/13 10:25 | Kishigami, Utaka v Jeong, Yeong Won | 4-6,6-4,2-6 |
| Antalya, Singles Qualifying W-WITF-TUR-08A | 2018/12/12 09:45 | Sukhotina, Anastasia v Jeong, Yeong Won | 7-6,2-6,3-6 |