Stadium: Centre Court Round: 25
| ITF Women Sangju | 2018/06/06 01:00 | Ayaka Okuno v Hyojung Yea | 6-3,6-3 |
| ITF Women Gimcheon | 2018/08/16 01:00 | Hyojung Yea v Se-Hyun Kim | 0-6,2-6 |
| ITF Women Gimcheon | 2018/08/15 01:00 | Hyojung Yea v Heejin Han | 6-2,7-5 |
| ITF Women Daegu Qual | 2018/06/19 01:00 | Zhibek Kulambayeva v Hyojung Yea | 4-6,7-6,7-5 |
| ITF Women Daegu Qual | 2018/06/18 03:25 | Hyojung Yea v Chihiro Takayama | 6-3,6-0 |
| ITF Women Daegu Qual | 2018/06/17 01:00 | Hyojung Yea v Jeongyun Lee | 6-2,6-1 |
| ITF Women Gyeongsan | 2018/06/15 01:00 | Hanna Chang v Hyojung Yea | 6-2,6-2 |
| ITF Women Gyeongsan | 2018/06/14 05:50 | Se-Hyun Kim v Hyojung Yea | 4-6,0-6 |
| ITF Women Gyeongsan | 2018/06/13 05:15 | Hyojung Yea v Sung-Hee Han | 6-4,6-2 |
| ITF Women Fort Worth | 2018/07/31 17:20 | Dominique Schaefer v Ayaka Okuno | 6-4,6-3 |
| ITF Women Evansville | 2018/07/25 18:25 | Ayaka Okuno v Priyanka Shah | 6-7,1-6 |
| ITF Women Jakarta | 2018/07/20 02:00 | Zeel Desai v Ayaka Okuno | 6-2,7-6 |
| ITF Women Jakarta | 2018/07/19 03:00 | Suzuho Oshino v Ayaka Okuno | 3-6,4-6 |
| ITF Women Jakarta | 2018/07/18 03:00 | Ani Vangelova v Ayaka Okuno | 1-6,1-6 |
| ITF Women Solo | 2018/07/12 03:00 | Mana Ayukawa v Ayaka Okuno | 6-0,4-6,6-3 |
| ITF Women Solo | 2018/07/11 02:30 | Suzuho Oshino v Ayaka Okuno | 6-7,4-6 |
| ITF Women Solo | 2018/07/10 07:20 | Snehal Mane v Ayaka Okuno | 1-6,4-6 |