Stadium: Stadium Round: 25 Ground: Hardcourt outdoor
| WTA Doha | 2018/02/14 10:25 | Agnieszka Radwanska v Petra Kvitova | 7-6,3-6,4-6 |
| WTA Cincinnati | 2018/08/14 17:15 | Karolina Pliskova v Agnieszka Radwanska | 6-3,6-3 |
| Wimbledon Women | 2018/07/04 13:30 | Agnieszka Radwanska v Lucie Safarova | 5-7,4-6 |
| Wimbledon Women | 2018/07/02 17:05 | Agnieszka Radwanska v Elena-Gabriela Ruse | 6-3,4-6,7-5 |
| WTA Eastbourne | 2018/06/29 10:00 | Agnieszka Radwanska v Aryna Sabalenka | 3-6,6-1,3-6 |
| WTA Eastbourne | 2018/06/28 10:00 | Jelena Ostapenko v Agnieszka Radwanska | 2-6,5-7 |
| WTA Eastbourne | 2018/06/26 12:55 | Daria Saville v Agnieszka Radwanska | 7-5,6-7,0-6 |
| WTA Eastbourne | 2018/06/25 14:05 | Agnieszka Radwanska v Timea Babos | 6-3,6-1 |
| WTA Miami | 2018/03/26 21:05 | Agnieszka Radwanska v Victoria Azarenka | 2-6,2-6 |
| WTA Cincinnati | 2018/08/18 16:00 | Petra Kvitova v Kiki Bertens | 6-3,4-6,2-6 |
| WTA Cincinnati | 2018/08/17 19:05 | Petra Kvitova v Elise Mertens | 7-5,5-7,6-3 |
| WTA Cincinnati | 2018/08/16 19:00 | Petra Kvitova v Kristina Mladenovic | 6-4,6-2 |
| WTA Cincinnati | 2018/08/15 00:30 | Petra Kvitova v Serena Williams | 6-3,2-6,6-3 |
| WTA Montreal | 2018/08/09 20:30 | Kiki Bertens v Petra Kvitova | 6-3,6-2 |
| WTA Montreal | 2018/08/07 17:35 | Anett Kontaveit v Petra Kvitova | 3-6,4-6 |
| Wimbledon Women | 2018/07/03 14:00 | Aliaksandra Sasnovich v Petra Kvitova | 6-4,4-6,6-0 |
| WTA Eastbourne | 2018/06/26 12:10 | Kateryna Volodko v Petra Kvitova | 5-7,3-6 |