Stadium: Court 3 Round: 25 Ground: Hardcourt outdoor
| ITF Women Tokyo Qual | 2017/11/06 01:00 | Mei Yamaguchi v Moyuka Uchijima | 6-2,7-6 |
| ITF Women Tokyo Qual | 2017/11/05 01:00 | Akari Inoue v Mei Yamaguchi | 6-4,1-6,4-6 |
| ITF Women Tokyo Qual | 2017/11/04 02:45 | Yukina Saigo v Mei Yamaguchi | 2-6,7-6,3-6 |
| ITF Women Hamamatsu Qual | 2017/10/17 06:00 | Sae Haraguchi v Mei Yamaguchi | 1-6,0-6 |
| ITF Women Hamamatsu Qual | 2017/10/17 01:00 | Ingrid Neel v Mei Yamaguchi | 3-6,6-4,6-3 |
| ITF Women Makinohara Qual | 2017/10/09 00:30 | Mami Hasegawa v Mei Yamaguchi | 7-5,6-1 |
| ITF Women Makinohara Qual | 2017/10/08 03:30 | Utaka Kishigami v Mei Yamaguchi | 2-6,0-6 |
| ITF Women Kyoto | 2017/09/07 04:10 | Mei Yamaguchi v Katy Dunne | 5-7,4-6 |
| WTA Tokyo Qual | 2017/09/09 02:00 | Himari Sato v Su Jeong Jang | 1-6,2-6 |
| ITF Women Kyoto | 2017/09/07 02:00 | Himari Sato v Michika Ozeki | 2-6,6-3,1-6 |
| ITF Women Kyoto | 2017/09/06 06:35 | Ayano Shimizu v Himari Sato | 5-7,2-6 |
| ITF Women Kyoto | 2017/09/05 07:35 | Himari Sato v Momoko Nishio | 4-6,6-3,6-4 |
| ITF Women Kyoto | 2017/09/04 01:00 | Himari Sato v Chie Kezuka | 6-1,6-3 |
| ITF Women Kyoto | 2017/09/02 03:00 | Mana Kawamura v Himari Sato | 3-6,1-6 |
| ITF Women Nanao | 2017/08/29 01:00 | Ayano Shimizu v Himari Sato | 6-4,1-6,6-1 |
| ITF Women Nanao Qual | 2017/08/28 01:00 | Ayumi Miyamoto v Himari Sato | 6-3,1-6,2-6 |