Stadium: Court 1 Round: 44
| ITF Women Gyeongsan | 2018/06/14 01:00 | Zhibek Kulambayeva v Ayaka Okuno | 7-5,2-6,6-1 |
| ITF Women Gyeongsan | 2018/06/12 02:55 | Rio Kitagawa v Ayaka Okuno | 2-6,4-6 |
| ITF Women Sangju | 2018/06/08 02:00 | Ayaka Okuno v Ya-Hsuan Lee | 2-6,0-6 |
| ITF Women Sangju | 2018/06/07 03:05 | Ayaka Okuno v Subin Park | 7-6,6-4 |
| ITF Women Sangju | 2018/06/06 01:00 | Ayaka Okuno v Hyojung Yea | 6-3,6-3 |
| ITF Women Karuizawa | 2018/05/24 03:55 | Ayaka Okuno v Abbie Myers | 2-6,3-6 |
| ITF Women Karuizawa | 2018/05/23 01:00 | Anastasia E Nefedova v Ayaka Okuno | 7-6,3-6,4-6 |
| ITF Women Kurume Qual | 2018/05/13 00:30 | Sakura Hondo v Ayaka Okuno | 6-7,6-4,7-6 |
| ITF Women Sangju | 2018/06/06 03:10 | Jin Ju Lee v Sung-Hee Han | 0-6,6-3,6-1 |
| ITF Women Sangju Qual | 2018/06/05 04:00 | Jin Ju Lee v Sung Hee Kim | 2-6,6-4,6-3 |
| ITF Women Sangju Qual | 2018/06/04 05:00 | Mami Hasegawa v Jin Ju Lee | 4-6,4-6 |
| ITF Women Yeongwol | 2017/09/05 02:00 | Jin Ju Lee v Kwan Yau Ng | 2-6,6-3,6-7 |
| ITF Women Yeongwol | 2017/08/30 05:25 | Pei-Chi Lee v Jin Ju Lee | 3-6,7-5,6-2 |
| ITF Women Gimcheon | 2017/06/14 03:30 | Jin Ju Lee v Suzy Larkin | 3-6,3-6 |
| ITF Women Gimcheon | 2017/06/13 02:00 | Jin Ju Lee v Ai Kamiyoshihara | 6-0,6-1 |
| ITF Women Gimcheon | 2017/06/12 02:00 | Jin Ju Lee v Jeongyun Lee | 7-6,6-0 |