Stadium: Central Court Round: 1
| Polish National Tour Women | 2020/06/21 17:00 | Katarzyna Piter v Wiktoria Saska | 6-0,6-1 |
| Polish National Tour Women | 2020/06/19 08:00 | Katarzyna Kawa v Katarzyna Piter | 6-3,7-5 |
| Polish National Tour Women | 2020/06/18 15:00 | Katarzyna Piter v Aleksandra Wierzbowska | 7-6,7-6 |
| Polish National Tour Women | 2020/06/17 14:30 | Katarzyna Piter v Magdalena Hedrzak | 7-5,6-1 |
| ITF W25 Altenkirchen | 2020/02/25 09:55 | Andreea Mitu v Katarzyna Piter | 3-6,7-5,6-2 |
| ITF W60 Cairo | 2020/02/19 09:00 | Katarzyna Piter v Melanie Klaffner | 4-6,6-1,2-6 |
| ITF W60 Cairo | 2020/02/17 14:00 | Amanda Carreras v Katarzyna Piter | 3-6,1-6 |
| ITF W60 Cairo | 2020/02/16 14:30 | Paula Kania-Chodun v Katarzyna Piter | 7-6,4-6,5-10 |