Stadium: Court B Round: 25
| ITF Women Nonthaburi | 2018/08/15 05:40 | Rutuja Bhosale v Jia Qi Ren | 7-6,6-2 |
| ITF Women Nonthaburi | 2018/08/13 03:20 | Prarisa Rachdanone v Jia Qi Ren | 0-6,0-6 |
| ITF Women Nonthaburi | 2018/08/12 03:25 | Ange Oby Kajuru v Jia Qi Ren | 4-6,4-6 |
| ITF Women Nonthaburi | 2018/08/11 07:00 | Dolavee Tumthong v Jia Qi Ren | 7-6,4-6,2-6 |
| ITF Women Nonthaburi | 2018/08/04 06:10 | Jia Qi Ren v Ayumi Koshiishi | 1-6,6-1,2-6 |
| ITF Women Nonthaburi Qual | 2018/07/14 05:35 | Patcharin Cheapchandej v Jia Qi Ren | 6-2,6-1 |
| ITF Women Tianjin Qual | 2018/07/08 02:00 | Xinyu Cai v Jia Qi Ren | 6-3,7-5 |
| ITF Women Madrid Qual | 2018/06/18 10:15 | Anastasia Pribylova v Jia Qi Ren | 6-0,6-1 |
| ITF Women Nanao | 2018/08/26 05:00 | Misa Okawa v Ayumi Miyamoto | 7-6,5-7,6-2 |
| ITF Women Tsukuba | 2018/08/19 03:00 | Haruna Arakawa v Ayumi Miyamoto | 4-6,6-4,6-1 |
| ITF Women Kofu | 2018/06/14 01:00 | Ayumi Miyamoto v Kai-Chen Chang | 3-6,7-5,4-6 |
| ITF Women Kofu | 2018/06/12 02:50 | Ayumi Miyamoto v Mana Kawamura | 3-6,6-1,7-5 |
| ITF Women Kofu Qual | 2018/06/10 00:00 | Ayumi Miyamoto v Hikaru Sato | 6-1,6-0 |
| ITF Women Kofu Qual | 2018/06/09 04:00 | Ayumi Miyamoto v Funa Kozaki | 6-2,6-2 |
| ITF Women Karuizawa | 2018/05/24 04:15 | Ayumi Miyamoto v Sakura Hondo | 5-7,1-6 |
| ITF Women Karuizawa | 2018/05/22 01:00 | Ayumi Miyamoto v Michika Ozeki | 6-1,6-1 |