Round: 46 Ground: Hardcourt outdoor
| WTA Seoul Qual | 2016/09/17 06:00 | Katarzyna Piter v Soyeon Park | 6-2,6-0 |
| ITF Women Zhuhai | 2016/09/15 04:10 | Katarzyna Piter v Nigina Abduraimova | 3-6,5-7 |
| ITF Women Zhuhai | 2016/09/14 06:35 | Katarzyna Piter v Xinyu Gao | 3-6,7-6,6-1 |
| ITF Women Barcelona | 2016/09/02 12:15 | Oceane Dodin v Katarzyna Piter | 6-4,6-4 |
| ITF Women Barcelona | 2016/08/31 10:00 | Alice Savoretti v Katarzyna Piter | 0-6,0-6 |
| ITF Women Barcelona | 2016/08/30 12:10 | Georgina Garcia-Perez v Katarzyna Piter | 6-3,3-6,2-6 |
| ITF Women Bagnatica | 2016/08/28 16:55 | Martina Trevisan v Katarzyna Piter | 6-1,5-7,6-5 |
| WTA Rabat Qual | 2016/04/24 11:15 | Marina Erakovic v Katarzyna Piter | 6-4,6-0 |
| 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 Noto | 2016/09/01 03:40 | Chihiro Nunome v Riko Sawayanagi | 4-6,3-6 |
| ITF Women Noto | 2016/08/31 02:05 | Aiko Yoshitomi v Riko Sawayanagi | 2-6,2-6 |
| Wimbledon Women Qual | 2015/06/23 10:00 | Riko Sawayanagi v Richel Hogenkamp | 2-6,2-6 |