Round: 25 Ground: Synthetic outdoor
| ITF Women Iizuka | 2016/10/01 06:35 | Su Jeong Jang v Riko Sawayanagi | 6-2,6-1 |
| ITF Women Iizuka | 2016/10/01 01:00 | Riko Sawayanagi v Ayano Shimizu | 6-4,7-5 |
| ITF Women Iizuka | 2016/09/30 07:45 | Riko Sawayanagi v Haruka Kaji | 6-2,6-3 |
| ITF Women Iizuka | 2016/09/28 06:20 | Riko Sawayanagi v Mana Ayukawa | 6-2,6-4 |
| WTA Seoul Qual | 2016/09/18 04:30 | Katarzyna Piter v Riko Sawayanagi | 6-3,6-7,6-2 |
| WTA Seoul Qual | 2016/09/17 02:30 | Sung-Hee Han v Riko Sawayanagi | 4-6,4-6 |
| WTA Tokyo Qual | 2016/09/10 04:00 | Rebecca Peterson v Riko Sawayanagi | 7-6,6-1 |
| ITF Women Noto | 2016/09/02 01:00 | Momoko Kobori v Riko Sawayanagi | 6-4,6-2 |
| ITF Women Makinohara Qual | 2016/10/10 02:00 | Nozomi Fujioka v Anri Nagata | 2-6,6-1,3-6 |
| ITF Women Makinohara Qual | 2016/10/09 03:00 | Minami Shuto v Anri Nagata | 4-6,4-6 |
| ITF Women Iizuka Qual | 2016/09/25 01:00 | Anri Nagata v Sari Baba | 6-2,3-6,1-6 |