| WTA - Cincinnati | 08/19 17:30 | 27 | [63] Ajla Tomljanovic v Petra Kvitova [28] | 2-6,3-6 | |
| WTA - Cincinnati | 08/18 15:00 | 26 | [28] Petra Kvitova v Ons Jabeur [5] | 6-1,4-6,6-0 | |
| WTA - Cincinnati | 08/17 15:00 | 25 | [40] Sorana Cirstea v Petra Kvitova [28] | 2-6,3-6 | |
| WTA - Cincinnati | 08/15 20:40 | 24 | [21] Jil Teichmann v Petra Kvitova [28] | 7-6,6-7,3-6 | |
| WTA - Toronto | 08/09 01:25 | 24 | [23] Petra Kvitova v Alison Riske-Amritraj [35] | 2-6,6-4,3-6 | |
| Wimbledon - Dames | 07/02 14:55 | 25 | [4] Paula Badosa v Petra Kvitova [26] | 7-5,7-6 | |
| Wimbledon - Dames | 06/30 10:00 | 24 | [111] Ana Bogdan v Petra Kvitova [26] | 1-6,6-7 | |
| Wimbledon - Dames | 06/28 14:50 | 23 | [72] Jasmine Paolini v Petra Kvitova [26] | 6-2,4-6,2-6 | |
| WTA - Eastbourne | 06/25 11:30 | 29 | [31] Petra Kvitova v Jelena Ostapenko [14] | 6-3,6-2 | |
| WTA - Eastbourne | 06/24 10:00 | 28 | [29] Beatriz Haddad Maia v Petra Kvitova [31] | 6-7,4-6 | |
| WTA - Eastbourne | 06/23 11:55 | 27 | [31] Petra Kvitova v Harriet Dart [103] | 6-3,6-4 | |
| WTA - Eastbourne | 06/22 11:40 | 26 | [127] Katie Boulter v Petra Kvitova [31] | 7-5,0-6,5-7 | |
| WTA - Eastbourne | 06/21 15:20 | 25 | [93] Donna Vekic v Petra Kvitova [31] | 1-6,6-7 | |
| WTA - Birmingham | 06/14 16:10 | 25 | [31] Petra Kvitova v Beatriz Haddad Maia [32] | 6-7,2-6 | |
| French Open - Dames | 05/25 17:15 | 24 | [127] Daria Saville v Petra Kvitova [34] | 6-4,6-2 | |
| French Open - Dames | 05/23 09:00 | 23 | [61] Anna Bondar v Petra Kvitova [34] | 6-7,1-6 | |
| WTA - Madrid | 04/29 09:00 | 24 | [35] Jil Teichmann v Petra Kvitova [30] | 6-3,7-5 | |
| WTA - Stuttgart | 04/20 10:30 | 25 | [28] Petra Kvitova v Karolina Pliskova [7] | 4-6,6-4,6-7 | |
| WTA - Charleston | 04/04 19:10 | 24 | [87] Magdalena Frech v Petra Kvitova [29] | Retired | |
| WTA - Miami | 03/30 23:00 | 27 | [32] Petra Kvitova v Iga Swiatek [2] | 3-6,3-6 | |
| WTA - Miami | 03/28 23:00 | 26 | [32] Petra Kvitova v Veronika Kudermetova [23] | 7-6,6-4 | |
| WTA - Miami | 03/27 20:50 | 25 | [94] Lauren Davis v Petra Kvitova [32] | 5-7,1-6 | |
| WTA - Miami | 03/25 19:10 | 24 | [82] Clara Burel v Petra Kvitova [32] | 1-6,6-3,3-6 | |
| WTA - Indian Wells | 03/14 18:00 | 25 | [6] Maria Sakkari v Petra Kvitova [31] | 6-3,6-0 | |
| WTA - Indian Wells | 03/12 19:00 | 24 | [59] Aliaksandra Sasnovich v Petra Kvitova [31] | 7-6,4-6,4-6 | |
| WTA - Doha | 02/22 11:00 | 25 | [26] Elise Mertens v Petra Kvitova [21] | Retired | |
| WTA - Doha | 02/21 15:05 | 24 | [21] Petra Kvitova v Irina-Camelia Begu [55] | 6-3,6-1 | |
| WTA - Dubai | 02/17 10:00 | 27 | [25] Petra Kvitova v Jelena Ostapenko [21] | 7-5,5-7,6-7 | |
| WTA - Dubai | 02/16 14:35 | 26 | [2] Aryna Sabalenka v Petra Kvitova [25] | 4-6,4-6 | |
| WTA - Dubai | 02/14 16:30 | 25 | [25] Petra Kvitova v Camila Giorgi [29] | 6-2,6-0 |
Petra Kvitová (Bílovec, 8 maart 1990) is een professioneel tennisspeelster uit Tsjechië. Zij is linkshandig en heeft een tweehandige backhand. Zij is actief in het proftennis sinds 2006.
In de periode 2007–2018 maakte Kvitová deel uit van het Tsjechische Fed Cup-team – zij behaalde daar een winst/verlies-balans van 30–11. Vijfmaal zat zij in het team dat de beker won: in 2011, 2012, 2014, 2015 en 2016.