| ITF Women Fukuoka Qual | 2017/05/07 01:00 | Naoko Eto v Kotomi Takahata | 3-6,2-6 |
| ITF Women Gifu Qual | 2017/04/30 05:45 | Kotomi Takahata v Jia-Qi Kang | 2-6,3-6 |
| ITF Women Kashiwa Qual | 2017/04/03 00:30 | Sunam Jeong v Kotomi Takahata | 6-0,7-6 |
| ITF Women Kashiwa Qual | 2017/04/02 04:00 | Kotomi Takahata v Seung-Yeon Hong | 6-4,6-3 |
| ITF Women Kofu Qual | 2017/03/25 01:00 | Kotomi Takahata v Wushuang Zheng | 3-6,0-6 |
| ITF Women Nishi-Tama | 2017/03/22 04:50 | Kotomi Takahata v Sarah Rebecca Sekulic | 1-6,1-6 |
| ITF Women Nishi-Tama | 2017/03/20 01:00 | Yui Chikaraishi v Kotomi Takahata | 2-6,0-6 |
| ITF Women Nishi-Tama | 2017/03/19 01:00 | Minami Shuto v Kotomi Takahata | 6-3,4-6,3-6 |
| ITF Women Fukuoka Qual | 2017/05/07 01:00 | Hina Matsumoto v Erina Hayashi | 0-6,5-7 |
| ITF Women Gifu Qual | 2017/04/30 01:00 | Erina Hayashi v Mai Minokoshi | 1-6,6-3,4-6 |
| ITF Women Kofu Qual | 2017/03/25 06:00 | Erina Hayashi v Rika Fujiwara | 6-7,7-5,1-6 |
| ITF Women Nishi-Tama | 2017/03/23 02:55 | Tori Kinard v Erina Hayashi | 6-4,2-6,6-3 |
| ITF Women Nishi-Tama | 2017/03/22 02:30 | Aya Tanaka v Erina Hayashi | 1-6,1-6 |
| ITF Women Nishi-Tama | 2017/03/20 01:00 | Wushuang Zheng v Erina Hayashi | 3-6,3-6 |
| ITF Women Nishi-Tama | 2017/03/19 02:00 | Hayaka Murase v Erina Hayashi | 3-6,2-6 |
| ITF Women Nishi-Tama | 2017/03/18 04:00 | Yidi Yang v Erina Hayashi | 1-6,4-6 |