[6] Petra Kvitova 7-5,5-7,6-3 Elise Mertens [14] 2018-08-17 19:05
Stadium: Grandstand Round: 27 Ground: Hardcourt outdoor
Home History
| 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 |
| WTA Birmingham | 2018/06/24 12:30 | Magdalena Rybarikova v Petra Kvitova | 6-4,1-6,2-6 |
| WTA Birmingham | 2018/06/23 12:35 | Petra Kvitova v Mihaela Buzarnescu | 6-3,6-2 |
Away History
| WTA Cincinnati | 2018/08/16 21:45 | Elise Mertens v Sloane Stephens | 7-6,6-2 |
| WTA Cincinnati | 2018/08/15 15:00 | Elise Mertens v Rebecca Peterson | 3-6,6-2,7-6 |
| WTA Cincinnati | 2018/08/14 15:00 | Elise Mertens v Magdalena Rybarikova | 6-4,6-2 |
| WTA Montreal | 2018/08/11 00:20 | Elina Svitolina v Elise Mertens | 7-5,6-3 |
| WTA Montreal | 2018/08/10 00:15 | Elise Mertens v Aryna Sabalenka | 2-6,7-6,6-0 |
| WTA Montreal | 2018/08/08 18:20 | Elise Mertens v Shuai Zhang | 6-2,6-7,6-0 |
| WTA Montreal | 2018/08/07 20:25 | Elise Mertens v Eugenie Bouchard | 6-2,6-4 |
| WTA San Jose | 2018/08/04 20:00 | Elise Mertens v Mihaela Buzarnescu | 6-4,3-6,1-6 |