Stadium: Court A1 Round: 25 Ground: Synthetic outdoor
| ITF Women Nanao | 2018/08/27 05:15 | Ayumi Koshiishi v Yu-Ting Hsieh | 6-0,6-0 |
| ITF Women Nanao | 2018/08/26 05:00 | Ayumi Koshiishi v Ayaka Ozeki | 4-6,6-3,6-3 |
| ITF Women Tsukuba | 2018/08/20 01:00 | Nagi Hanatani v Ayumi Koshiishi | 6-2,7-6 |
| ITF Women Tsukuba | 2018/08/19 00:30 | Ange Oby Kajuru v Ayumi Koshiishi | 1-6,4-6 |
| ITF Women Nonthaburi | 2018/08/11 03:00 | Ayumi Koshiishi v Punnin Kovapitukted | 2-6,2-6 |
| ITF Women Nonthaburi | 2018/08/06 05:15 | Lou Brouleau v Ayumi Koshiishi | 6-1,6-3 |
| ITF Women Nonthaburi | 2018/08/05 04:15 | Michika Ozeki v Ayumi Koshiishi | 7-6,5-7,3-6 |
| ITF Women Nonthaburi | 2018/08/04 06:10 | Jia Qi Ren v Ayumi Koshiishi | 1-6,6-1,2-6 |
| ITF Women Tsukuba | 2018/08/19 00:30 | Tori Kinard v Anri Nagata | 6-2,4-6,2-6 |
| ITF Women Fort Worth | 2018/08/01 17:30 | Tori Kinard v Abbie Myers | 4-6,4-6 |
| ITF Women Berkeley Qual | 2018/07/16 19:00 | Michaela Gordon v Tori Kinard | 6-4,6-1 |
| ITF Women Berkeley Qual | 2018/07/15 20:50 | Monica Robinson v Tori Kinard | 4-6,6-4,5-7 |
| ITF Women Sumter | 2018/06/13 16:30 | Tori Kinard v Ashley Lahey | 1-6,3-6 |
| ITF Women Kurume Qual | 2018/05/13 09:35 | Chihiro Takayama v Tori Kinard | 2-6,7-5,6-3 |
| WTA Newport Beach Qual | 2018/01/20 21:35 | Marie Bouzkova v Tori Kinard | 6-0,6-0 |
| ITF Women Toyota Qual | 2017/11/12 07:15 | Tori Kinard v Michika Ozeki | 4-6,3-6 |