Round: 25 Ground: Hardcourt outdoor
| WTA Guangzhou Qual | 2017/09/17 06:00 | Lesley Pattinama Kerkhove v Riko Sawayanagi | 6-1,7-5 |
| WTA Guangzhou Qual | 2017/09/16 04:45 | Xu Liu Sun v Riko Sawayanagi | 3-6,4-6 |
| WTA Tokyo Qual | 2017/09/09 06:30 | Basak Eraydin v Riko Sawayanagi | 4-6,7-6,6-3 |
| WTA Dalian | 2017/09/06 05:10 | Riko Sawayanagi v Vitalia Diatchenko | 4-6,4-6 |
| US Open Women Qual | 2017/08/24 17:45 | Allie Kiick v Riko Sawayanagi | 6-4,6-3 |
| US Open Women Qual | 2017/08/22 17:55 | Riko Sawayanagi v Asia Muhammad | 2-6,7-6,6-3 |
| WTA Nanchang Qual | 2017/07/22 08:00 | Riko Sawayanagi v Xiaodi You | 6-3,2-6,1-6 |
| ITF Women Tianjin | 2017/07/20 02:00 | Jing-Jing Lu v Riko Sawayanagi | 3-6,6-2,7-5 |
| ITF Women Hua Hin Qual | 2017/05/06 06:30 | Punnin Kovapitukted v Wushuang Zheng | 3-6,6-3,3-6 |
| ITF Women Hua Hin | 2017/05/01 03:00 | Punnin Kovapitukted v Mananchaya Sawangkaew | 6-7,4-6 |
| ITF Women Hua Hin | 2017/04/25 04:30 | Punnin Kovapitukted v Nudnida Luangnam | 1-6,4-6 |