Stadium: Centre Court Round: 25 Ground: Grass
| French Open Women | 2021/05/30 11:25 | Greet Minnen v Petra Kvitova | 7-6,6-7,1-6 |
| WTA Rome | 2021/05/12 09:30 | Vera Zvonareva v Petra Kvitova | 6-4,3-6,6-4 |
| WTA Rome | 2021/05/10 09:35 | Magda Linette v Petra Kvitova | 6-1,0-6,2-6 |
| WTA Madrid | 2021/05/05 11:35 | Ashleigh Barty v Petra Kvitova | 6-1,3-6,6-3 |
| WTA Madrid | 2021/05/03 11:50 | Petra Kvitova v Veronika Kudermetova | 6-3,4-6,6-4 |
| WTA Madrid | 2021/05/01 13:15 | Petra Kvitova v Angelique Kerber | 6-4,7-5 |
| WTA Stuttgart | 2021/04/23 15:00 | Elina Svitolina v Petra Kvitova | 6-7,7-5,6-2 |
| WTA Stuttgart | 2021/04/21 18:30 | Maria Sakkari v Petra Kvitova | 3-6,6-3,3-6 |
| WTA Bad Homburg | 2021/06/20 09:00 | Katarzyna Piter v Nastasja Schunk | 7-6,2-6,7-6 |
| WTA Bogota | 2021/04/03 16:25 | Katarzyna Piter v Marina Melnikova | 5-7,0-6 |
| WTA Guadalajara | 2021/03/06 23:20 | Olga Govortsova v Katarzyna Piter | 6-0,6-2 |
| WTA Abu Dhabi | 2021/01/05 08:05 | Katarzyna Piter v Jessica Pieri | 4-6,0-6 |
| ITF W80 Tyler | 2020/10/26 19:20 | Mayo Hibi v Katarzyna Piter | 6-4,6-7,10-5 |
| ITF W60 Saint Malo | 2020/09/08 09:45 | Katarzyna Piter v Flavie Brugnone | 0-6,3-6 |
| Polish National Tour Women | 2020/08/24 09:30 | Katarzyna Piter v Weronika Falkowska | 4-6,6-3,3-6 |
| Polish National Tour Women | 2020/08/23 17:20 | Katarzyna Piter v Julia Oczachowska | 6-0,6-0 |