Round: 54 Ground: Hardcourt outdoor
| ITF Women Kofu Qual | 2017/06/12 02:30 | Reina Takahashi v Kumi So | 6-1,6-0 |
| ITF Women Kofu Qual | 2017/06/11 05:00 | Kumi So v Mei Yamaguchi | 6-4,7-6 |
| 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 |