Round: 25 Ground: Hardcourt outdoor
| ITF Women Tokyo | 2017/06/07 04:40 | Akiko Omae v Erina Hayashi | 6-2,6-2 |
| ITF Women Tokyo Qual | 2017/06/05 01:00 | Erina Hayashi v Yuxuan Zhang | 7-5,6-1 |
| ITF Women Tokyo Qual | 2017/06/04 02:15 | Erina Hayashi v Karin Terami | 5-7,6-4,6-2 |
| ITF Women Kurume | 2017/05/20 01:15 | Laura Robson v Erina Hayashi | 7-5,7-6 |
| ITF Women Kurume | 2017/05/19 02:10 | Erina Hayashi v Riko Sawayanagi | 6-1,1-6,6-3 |
| ITF Women Kurume | 2017/05/18 01:00 | Sari Baba v Erina Hayashi | 6-2,4-6,4-6 |
| ITF Women Kurume | 2017/05/17 01:00 | Ayaka Okuno v Erina Hayashi | 6-7,0-6 |
| ITF Women Kurume Qual | 2017/05/15 01:30 | Erina Hayashi v Mei Yamaguchi | 6-4,6-1 |
| ITF Women Kofu Qual | 2017/06/12 02:00 | Kiko Nishizato v Kimika Sakata | 3-6,2-6 |
| ITF Women Kofu Qual | 2017/06/11 00:00 | Haine Ogata v Kimika Sakata | 3-6,4-6 |
| ITF Women Tokyo Qual | 2017/06/04 02:15 | Kimika Sakata v Nagi Hanatani | 4-6,5-7 |
| ITF Women Karuizawa Qual | 2017/05/22 01:00 | Kimika Sakata v Chihiro Takayama | 4-6,6-7 |
| ITF Women Karuizawa Qual | 2017/05/21 02:30 | Kimika Sakata v Yuki Ando | 4-6,6-1,6-1 |
| ITF Women Kashiwa | 2017/04/04 04:30 | Luksika Kumkhum v Kimika Sakata | 6-3,6-0 |
| ITF Women Kofu Qual | 2017/03/25 01:00 | Kimika Sakata v Kei Kato | 4-6,3-6 |
| ITF Women Nishi-Tama | 2017/03/18 04:00 | Yuka Higuchi v Kimika Sakata | 6-3,6-3 |