Stadium: COURT C Round: 54 Ground: Grass
| ITF Women Makinohara Qual | 2017/10/08 03:30 | Varvara Kuznetsova v Mami Hasegawa | 4-6,2-6 |
| ITF Women Hua Hin Qual | 2017/09/09 03:00 | Tamaryn Hendler v Mami Hasegawa | 6-2,6-1 |
| ITF Women Nanjing Qual | 2017/02/26 02:00 | Shuyue Ma v Mami Hasegawa | 6-3,7-5 |
| ITF Women Nanjing Qual | 2017/02/25 02:00 | Pinyi Zuo v Mami Hasegawa | 4-6,0-6 |
| ITF Women Toyota Qual | 2016/11/13 04:00 | Mami Hasegawa v Akari Inoue | 2-6,6-4,4-6 |
| ITF Women Makinohara Qual | 2016/10/09 00:30 | Chihiro Muramatsu v Mami Hasegawa | 6-1,6-1 |
| 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 |
| ITF Women Kyoto | 2017/09/06 03:00 | Mei Yamaguchi v Ramu Ueda | 6-3,6-3 |
| ITF Women Kyoto | 2017/09/05 06:55 | Ayaka Okuno v Mei Yamaguchi | 4-6,2-6 |
| ITF Women Kyoto | 2017/09/04 01:00 | Suzuka Furukawa v Mei Yamaguchi | 0-6,5-7 |
| ITF Women Kofu Qual | 2017/06/11 05:00 | Kumi So v Mei Yamaguchi | 6-4,7-6 |
| ITF Women Karuizawa Qual | 2017/05/21 04:00 | Mihoki Miyahara v Mei Yamaguchi | 7-6,6-4 |
| ITF Women Karuizawa Qual | 2017/05/20 05:30 | Chinatsu Shimizu v Mei Yamaguchi | 2-6,7-6,3-6 |