Round: 1
| Polska - National Tour - Kobiety | 2020/07/28 09:00 | Katarzyna Piter v Anastasiya Shoshyna | 0-6,6-4,3-6 |
| Polska - National Tour - Kobiety | 2020/07/27 09:30 | Katarzyna Piter v Stefania Rogozinska-Dzik | 6-2,6-3 |
| Polska - National Tour - Kobiety | 2020/07/26 14:05 | Katarzyna Piter v Marcelina Podlinska | 7-5,6-2 |
| Polska - National Tour - Kobiety | 2020/07/25 15:45 | Katarzyna Piter v Witoria Rutkowska | 6-2,6-2 |
| Polska - National Tour - Kobiety | 2020/07/18 08:00 | Katarzyna Kawa v Katarzyna Piter | 7-6,6-0 |
| Polska - National Tour - Kobiety | 2020/07/17 09:30 | Katarzyna Piter v Joanna Zawadzka | 3-6,6-4,7-5 |
| Polska - National Tour - Kobiety | 2020/07/15 14:35 | Katarzyna Piter v Aleksandra Wierzbowska | 6-2,6-0 |
| Mistrzostwa Europy Wschodniej - Kobiety | 2020/07/10 12:50 | Katarzyna Piter v Mihaela Djakovic | 6-2,5-7,6-2 |
| ITF - Antalya W15 | 2020/01/30 09:45 | Valeriya Olyanovskaya v Georgia Andreea Craciun | 6-7,3-6 |
| ITF - Antalya W15 | 2020/01/29 11:35 | Valeriya Olyanovskaya v Oleksandra Oliynykova | 1-6,6-2,6-0 |
| ITF - Antalya W15 | 2020/01/26 10:40 | Silvia Njiric v Valeriya Olyanovskaya | 0-6,2-6 |
| ITF - Antalya W15 | 2020/01/25 07:30 | Valeriya Olyanovskaya v Zhibek Kulambayeva | 6-3,6-3 |
| ITF - Antalya W15 | 2020/01/24 07:00 | Honoka Kobayashi v Valeriya Olyanovskaya | 0-6,0-6 |
| ITF - Antalya W15 | 2020/01/23 08:55 | Valeriya Olyanovskaya v Martina Colmegna | 5-7,6-3,6-4 |
| ITF - Antalya W15 | 2020/01/21 09:00 | Sapfo Sakellaridi v Valeriya Olyanovskaya | 5-7,6-3,4-6 |
| ITF - Antalya W15 | 2019/12/21 07:00 | Polina Kudermetova v Valeriya Olyanovskaya | 6-3,6-3 |