| WTA - Peking | 10/02 09:30 | 25 | [14] Petra Kvitova v Liudmila Samsonova [22] | 4-6,5-7 | |
| WTA - Peking | 10/01 13:05 | 24 | [14] Petra Kvitova v Xiyu Wang [58] | 6-7,7-5,6-3 | |
| WTA - Ningbo | 09/28 12:00 | 27 | [85] Diana Shnaider v Petra Kvitova [14] | 6-1,4-6,6-3 | |
| WTA - Ningbo | 09/27 02:00 | 26 | Yulia Putintseva v Petra Kvitova | Walkover | |
| WTA - Ningbo | 09/25 13:25 | 25 | [112] Anna-Lena Friedsam v Petra Kvitova [14] | 6-7,1-6 | |
| US Open - Dames | 08/31 01:15 | 24 | Petra Kvitova v Caroline Wozniacki | 5-7,6-7 | |
| US Open - Dames | 08/28 23:25 | 23 | [11] Petra Kvitova v Cristina Bucsa [65] | 6-1,7-6 | |
| WTA - Cincinnati | 08/16 20:25 | 25 | [9] Petra Kvitova v Linda Noskova [50] | 6-3,2-6,4-6 | |
| WTA - Cincinnati | 08/15 15:00 | 24 | [9] Petra Kvitova v Anna Blinkova [37] | 7-6,6-0 | |
| WTA - Montreal | 08/11 16:00 | 26 | [9] Petra Kvitova v Belinda Bencic [13] | 7-6,3-6,1-6 | |
| WTA - Montreal | 08/10 02:45 | 25 | [9] Petra Kvitova v Camila Giorgi [51] | 6-2,5-7,6-0 | |
| Wimbledon - Dames | 07/10 15:20 | 26 | [6] Ons Jabeur v Petra Kvitova [9] | 6-0,6-3 | |
| Wimbledon - Dames | 07/08 10:00 | 25 | [225] Natalija Stevanovic v Petra Kvitova [9] | 3-6,5-7 | |
| Wimbledon - Dames | 07/07 10:00 | 24 | [69] Aliaksandra Sasnovich v Petra Kvitova [9] | 2-6,2-6 | |
| Wimbledon - Dames | 07/05 19:00 | 23 | [44] Jasmine Paolini v Petra Kvitova [9] | 4-6,7-6,1-6 | |
| WTA - Eastbourne | 06/27 11:30 | 25 | Petra Kvitova v Jelena Ostapenko | Cancelled | |
| WTA - Berlijn | 06/25 13:30 | 29 | [9] Petra Kvitova v Donna Vekic [23] | 6-2,7-6 | |
| WTA - Berlijn | 06/24 15:35 | 28 | [22] Ekaterina Alexandrova v Petra Kvitova [9] | 3-6,4-6 | |
| WTA - Berlijn | 06/24 10:20 | 27 | [4] Caroline Garcia v Petra Kvitova [9] | 4-6,6-7 | |
| WTA - Berlijn | 06/21 15:30 | 26 | [86] Nadia Podoroska v Petra Kvitova [9] | 1-6,1-6 | |
| WTA - Berlijn | 06/19 13:00 | 25 | [18] Karolina Pliskova v Petra Kvitova [9] | 3-6,4-6 | |
| French Open - Dames | 05/29 17:45 | 23 | [10] Petra Kvitova v Elisabetta Cocciaretto [44] | 3-6,4-6 | |
| WTA - Madrid | 04/27 09:00 | 24 | [67] Jule Niemeier v Petra Kvitova [10] | 7-6,6-1 | |
| WTA - Stuttgart | 04/17 08:00 | 25 | Petra Kvitova v Anastasia Potapova | Cancelled | |
| WTA - Miami | 04/01 19:00 | 29 | [7] Elena Rybakina v Petra Kvitova [12] | 6-7,2-6 | |
| WTA - Miami | 03/31 19:40 | 28 | [12] Petra Kvitova v Sorana Cirstea [74] | 7-5,6-4 | |
| WTA - Miami | 03/30 19:15 | 27 | [18] Ekaterina Alexandrova v Petra Kvitova [12] | 4-6,6-3,3-6 | |
| WTA - Miami | 03/27 20:25 | 26 | [12] Petra Kvitova v Varvara Gracheva [54] | 7-5,7-6 | |
| WTA - Miami | 03/26 19:15 | 25 | [12] Petra Kvitova v Donna Vekic [20] | 6-4,7-6 | |
| WTA - Miami | 03/24 21:10 | 24 | [12] Petra Kvitova v Linda Noskova [51] | 6-3,6-0 |
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.