| ITF Women Kyoto | 2016/09/05 01:00 | Rio Kitagawa v Saki Imamura | 6-3,6-1 |
| ITF Women Kofu Qual | 2017/06/11 04:00 | Mayu Iwai v Aoi Ishino | 6-0,6-7,4-6 |
| ITF Women Nishi-Tama | 2017/03/19 01:00 | Yuki Kristina Chiang v Mayu Iwai | 6-2,6-2 |
| Challenger Kaohsiung Qual | 2016/06/14 03:00 | Ayano Shimizu v Mayu Iwai | 6-3,6-3 |