Stadium: Court 5 Round: 25 Ground: Synthetic outdoor
| ITF Women Hamamatsu Qual | 2017/10/17 06:00 | Eimi Friant v Mitsumi Kawasaki | 1-6,1-6 |
| ITF Women Hamamatsu Qual | 2017/10/17 01:00 | Varvara Kuznetsova v Mitsumi Kawasaki | 2-6,4-6 |
| ITF Women Hamamatsu Qual | 2017/10/14 01:00 | Miki Miyamura v Mitsumi Kawasaki | 5-7,1-6 |
| ITF Women Makinohara Qual | 2017/10/09 02:10 | Reina Takahashi v Mitsumi Kawasaki | 6-3,6-3 |
| ITF Women Kyoto | 2017/09/05 01:00 | Akari Inoue v Mitsumi Kawasaki | 6-2,6-4 |
| ITF Women Nanao Qual | 2017/08/27 01:00 | Mana Kawamura v Mitsumi Kawasaki | 6-2,6-2 |
| ITF Women Hong Kong | 2017/07/25 07:50 | Mitsumi Kawasaki v Meiling Wang | 3-6,0-6 |
| ITF Women Kofu Qual | 2017/06/11 04:00 | Arisa Abe v Mitsumi Kawasaki | 2-6,6-3,7-6 |
| ITF Women Makinohara | 2017/10/11 00:30 | Ayaka Okuno v Megumi Nishimoto | 3-6,0-6 |
| WTA Tokyo Qual | 2017/09/16 01:00 | Ayaka Okuno v Basak Eraydin | 1-6,2-6 |
| ITF Women Kyoto | 2017/09/05 06:55 | Ayaka Okuno v Mei Yamaguchi | 4-6,2-6 |
| ITF Women Nanao | 2017/08/29 01:00 | Katy Dunne v Ayaka Okuno | 6-4,6-1 |
| ITF Women Tsukuba | 2017/08/24 00:40 | Akiko Omae v Ayaka Okuno | 6-4,6-3 |
| ITF Women Tsukuba | 2017/08/23 02:40 | Aiko Yoshitomi v Ayaka Okuno | 2-6,5-7 |
| ITF Women Fort Worth | 2017/08/02 23:05 | Ayaka Okuno v Marcela Zacarias | 3-6,4-6 |
| ITF Women Hua Hin | 2017/07/18 06:25 | Ayaka Okuno v Genevieve Lorbergs | 3-6,7-5,4-6 |