Stadium: Court 7 Round: 44
| ITF Women Sangju Qual | 2018/06/04 03:30 | Takayama, Chihiro v Yea, Hyojung | 2-6,1-6 |
| ITF Women Sangju Qual | 2018/06/03 02:00 | Yea, Hyojung v Jang, Eun SE | 6-2,6-3 |
| Changwon, Singles Qualifying W-WITF-KOR-01A | 2018/05/22 01:00 | Dabin Kim v Yea, Hyojung | 2-6,6-4,6-3 |
| Changwon, Singles Qualifying W-WITF-KOR-01A | 2018/05/21 01:00 | Yea, Hyojung v Kim, SE-Hyun | 6-1,1-6,6-0 |
| Changwon, Singles Qualifying W-WITF-KOR-01A | 2018/05/20 01:00 | Lee, Eun Ji v Yea, Hyojung | 2-6,0-6 |
| ITF Women Incheon Qual | 2018/05/13 02:00 | Silich, Alina v Yea, Hyojung | 6-4,2-6,7-6 |
| ITF Women Goyang Qual | 2018/05/07 01:00 | Yea, Hyojung v Barnett, Alicia | 1-6,4-6 |
| ITF Women Goyang Qual | 2018/05/06 05:15 | Lee, Dami v Yea, Hyojung | 0-6,1-6 |
| ITF Women Sangju Qual | 2018/06/04 03:30 | Sim, Mi Seong v Cheon, S. | 4-6,6-2,6-4 |
| ITF Women Sangju Qual | 2018/06/03 02:00 | Jeong, Jooyeon v Sim, Mi Seong | 0-6,4-6 |