Round: 62 Ground: Hardcourt outdoor
| ITF Women Naples Qual | 2017/05/14 13:00 | Yuki Kristina Chiang v Kumi So | 6-3,6-3 |
| ITF Women Naples Qual | 2017/05/08 13:00 | Kumi So v Shelby Talcott | 2-6,6-7 |
| ITF Women Naples Qual | 2017/05/07 13:00 | Kumi So v Catherine Leduc | 5-7,6-2,7-6 |
| ITF Women Kofu Qual | 2017/03/27 02:30 | Kumi So v Kei Kato | 2-6,6-7 |
| ITF Women Kofu Qual | 2017/03/25 02:00 | Pei-Chi Lee v Kumi So | 4-6,7-5,2-6 |
| ITF Women Nishi-Tama | 2017/03/19 01:00 | Kumi So v Qianqian Zhao | 0-6,1-6 |
| ITF Women Nishi-Tama | 2017/03/18 02:00 | Kumi So v Makoto Yamaguchi | 6-2,6-2 |
| ITF Women Hamamatsu | 2016/10/19 03:15 | Ksenia Lykina v Kumi So | 6-2,4-6,6-1 |
| 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 |
| ITF Women Kurume Qual | 2017/05/15 01:30 | Erina Hayashi v Mei Yamaguchi | 6-4,6-1 |
| ITF Women Kurume Qual | 2017/05/14 08:15 | Mei Yamaguchi v Kotomi Takahata | 6-1,7-6 |
| ITF Women Kurume Qual | 2017/05/14 03:15 | Ayano Sonoda v Mei Yamaguchi | 0-6,3-6 |
| ITF Women Fukuoka Qual | 2017/05/07 06:00 | Mei Yamaguchi v Monique Adamczak | 1-6,3-6 |
| ITF Women Fukuoka Qual | 2017/05/07 01:00 | Mei Yamaguchi v Mina Miyahara | 6-1,6-3 |
| ITF Women Kofu Qual | 2017/03/25 03:30 | Xiyu Wang v Mei Yamaguchi | 6-4,6-2 |