Stadium: Credit One Stadium Round: 25 Ground: Clay
| WTA Charleston | 2018/04/03 19:30 | Katerina Siniakova v Kristyna Pliskova | 4-6,1-6 |
| WTA Miami | 2018/03/20 17:55 | Aliaksandra Sasnovich v Kristyna Pliskova | 1-6,7-6,7-5 |
| WTA Indian Wells | 2018/03/09 22:10 | Simona Halep v Kristyna Pliskova | 6-4,6-4 |
| WTA Indian Wells | 2018/03/07 23:15 | Ying-Ying Duan v Kristyna Pliskova | 4-6,6-7 |
| WTA Acapulco | 2018/02/28 00:05 | Kristyna Pliskova v Renata Zarazua | 3-6,4-6 |
| WTA St. Petersburg Qual | 2018/01/28 08:00 | Kristyna Pliskova v Tereza Martincova | 6-3,4-6,4-6 |
| WTA St. Petersburg Qual | 2018/01/27 10:40 | Kristyna Pliskova v Basak Eraydin | 6-0,6-2 |
| Australian Open - Kobiety | 2018/01/16 07:55 | Kristyna Pliskova v Agnieszka Radwanska | 6-2,3-6,2-6 |
| WTA Miami | 2018/03/27 01:45 | Jelena Ostapenko v Petra Kvitova | 7-6,6-3 |
| WTA Miami | 2018/03/25 23:30 | Sofia Kenin v Petra Kvitova | 6-3,2-6,4-6 |
| WTA Miami | 2018/03/23 16:20 | Aryna Sabalenka v Petra Kvitova | 5-7,6-3,3-6 |
| WTA Indian Wells | 2018/03/11 18:00 | Petra Kvitova v Amanda Anisimova | 2-6,4-6 |
| WTA Indian Wells | 2018/03/09 19:00 | Petra Kvitova v Yulia Putintseva | 6-7,7-6,6-4 |
| WTA Doha | 2018/02/18 15:00 | Petra Kvitova v Garbine Muguruza | 3-6,6-3,6-4 |
| WTA Doha | 2018/02/17 16:00 | Caroline Wozniacki v Petra Kvitova | 6-3,6-7,5-7 |
| WTA Doha | 2018/02/15 16:10 | Elina Svitolina v Petra Kvitova | 4-6,5-7 |