Stadium: Centre Court Round: 26 Ground: Hardcourt outdoor
| WTA - Praag | 2018/04/30 11:25 | Natalia Vikhlyantseva v Carina Witthoeft | 6-4,6-4 |
| WTA - Charleston | 2018/04/02 14:00 | Laura Siegemund v Natalia Vikhlyantseva | 7-5,6-2 |
| WTA - Miami | 2018/03/23 21:00 | Venus Williams v Natalia Vikhlyantseva | 7-5,6-4 |
| WTA - Miami | 2018/03/21 21:35 | Natalia Vikhlyantseva v Rebecca Peterson | 7-5,6-1 |
| WTA Miami Qual | 2018/03/20 14:00 | Natalia Vikhlyantseva v Nicole Gibbs | 7-6,6-4 |
| WTA Miami Qual | 2018/03/19 14:00 | Natalia Vikhlyantseva v Emiliana Arango | 6-3,6-2 |
| WTA - Indian Wells | 2018/03/10 20:35 | Natalia Vikhlyantseva v Julia Goerges | 4-6,1-6 |
| WTA - Indian Wells | 2018/03/08 20:45 | Vera Zvonareva v Natalia Vikhlyantseva | 3-6,2-6 |
| WTA - Praag | 2018/05/01 09:00 | Tereza Smitkova v Petra Kvitova | 1-6,3-6 |
| WTA - Stuttgart | 2018/04/25 17:10 | Petra Kvitova v Angelique Kerber | 3-6,2-6 |
| 2018 Fed Cup | 2018/04/22 10:10 | Angelique Kerber v Petra Kvitova | 2-6,2-6 |
| 2018 Fed Cup | 2018/04/21 10:00 | Julia Goerges v Petra Kvitova | 3-6,2-6 |
| WTA - Charleston | 2018/04/04 18:50 | Kristyna Pliskova v Petra Kvitova | 1-6,6-1,6-3 |
| 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 |