| WTA Indian Wells | 03/16 01:00 | 27 | [7] Maria Sakkari v Petra Kvitova [15] | 4-6,7-5,6-1 | |
| WTA Indian Wells | 03/14 23:40 | 26 | [15] Petra Kvitova v Jessica Pegula [3] | 6-2,3-6,7-6 | |
| WTA Indian Wells | 03/13 01:00 | 25 | [15] Petra Kvitova v Jelena Ostapenko [25] | 0-6,6-0,6-4 | |
| WTA Indian Wells | 03/10 22:00 | 24 | [15] Petra Kvitova v Elizabeth Mandlik [155] | 6-1,7-5 | |
| WTA Dubaj | 02/22 17:00 | 26 | [30] Barbora Krejcikova v Petra Kvitova [15] | 6-3,6-2 | |
| WTA Dubaj | 02/21 10:45 | 25 | [46] Yulia Putintseva v Petra Kvitova [15] | 4-6,4-6 | |
| WTA Dubaj | 02/19 09:20 | 24 | [25] Martina Trevisan v Petra Kvitova [13] | 2-6,1-6 | |
| WTA Doha | 02/15 12:30 | 26 | [6] Coco Gauff v Petra Kvitova [13] | 6-3,7-6 | |
| WTA Doha | 02/14 11:00 | 25 | [13] Petra Kvitova v Shuai Zhang [22] | 7-5,6-2 | |
| Australian Open - Kobiety | 01/18 02:00 | 24 | [39] Anhelina Kalinina v Petra Kvitova [15] | 7-5,6-4 | |
| Australian Open - Kobiety | 01/16 02:15 | 23 | [68] Alison Van Uytvanck v Petra Kvitova [15] | 6-7,2-6 | |
| WTA Adelaide 2 | 01/12 02:40 | 27 | [16] Petra Kvitova v Darya Kasatkina [8] | 3-6,6-7 | |
| WTA Adelaide 2 | 01/11 00:30 | 26 | [16] Petra Kvitova v Qinwen Zheng [30] | Retired | |
| WTA Adelaide 2 | 01/09 00:30 | 25 | [16] Petra Kvitova v Elena Rybakina [21] | 6-3,7-5 | |
| WTA Adelaide 2 | 01/08 23:30 | 25 | Petra Kvitova v Liudmila Samsonova | Cancelled | |
| United Cup - Kobiety | 12/31 23:00 | - | [177] Laura Siegemund v Petra Kvitova [16] | 4-6,2-6 | |
| United Cup - Kobiety | 12/29 23:00 | - | [3] Jessica Pegula v Petra Kvitova [16] | 6-7,4-6 | |
| Czechy - Extraliga Women | 12/14 10:30 | - | [16] Petra Kvitova v Miriam Kolodziejova [70] | 6-0,6-2 | |
| Czechy - Extraliga Women | 12/12 10:30 | - | [16] Petra Kvitova v Tereza Martincova [73] | 6-1,6-4 | |
| WTA Guadalajara | 10/18 22:00 | 25 | [59] Bianca Andreescu v Petra Kvitova [21] | 3-6,6-2,6-0 | |
| WTA Guadalajara | 10/17 21:45 | 24 | [42] Bernarda Pera v Petra Kvitova [21] | 3-6,5-7 | |
| WTA Ostrava | 10/07 16:20 | 27 | [26] Elena Rybakina v Petra Kvitova [20] | 7-6,6-4 | |
| WTA Ostrava | 10/05 16:20 | 26 | [20] Petra Kvitova v Paula Badosa [4] | 7-6,6-4 | |
| WTA Ostrava | 10/03 16:40 | 25 | [20] Petra Kvitova v Bernarda Pera [43] | 6-3,2-6,6-4 | |
| US Open - Kobiety | 09/05 16:00 | 26 | [21] Petra Kvitova v Jessica Pegula [8] | 3-6,2-6 | |
| US Open - Kobiety | 09/03 15:00 | 25 | [10] Garbine Muguruza v Petra Kvitova [21] | 7-5,3-6,6-7 | |
| US Open - Kobiety | 09/01 17:00 | 24 | Anhelina Kalinina v Petra Kvitova | Walkover | |
| US Open - Kobiety | 08/30 16:50 | 23 | [130] Erika Andreeva v Petra Kvitova [21] | 6-7,0-6 | |
| WTA Cincinnati | 08/21 18:00 | 29 | [28] Petra Kvitova v Caroline Garcia [35] | 2-6,4-6 | |
| WTA Cincinnati | 08/20 15:00 | 28 | [24] Madison Keys v Petra Kvitova [28] | 7-6,4-6,3-6 |
Petra Kvitová (ur. 8 marca 1990 w Bílovcu) – czeska tenisistka, mistrzyni Wimbledonu 2011 i 2014 w grze pojedynczej, triumfatorka Mistrzostw WTA 2011 i WTA Elite Trophy 2016 w grze pojedynczej, zdobywczyni Pucharu Federacji 2011, 2012, 2014, 2015 i 2016 oraz Pucharu Hopmana 2012, brązowa medalistka igrzysk olimpijskich w Rio de Janeiro, wiceliderka rankingu WTA.