Stadium: Centre Court Round: 26 Ground: Hardcourt outdoor
| WTA Prague | 2018/04/30 11:25 | Vikhlyantseva, Natalia v Witthoeft, Carina | 6-4,6-4 |
| WTA - Charleston | 2018/04/02 14:00 | Laura Siegemund v Vikhlyantseva, Natalia | 7-5,6-2 |
| WTA - Miami | 2018/03/23 21:00 | Venus Williams v Vikhlyantseva, Natalia | 7-5,6-4 |
| WTA - Miami | 2018/03/21 21:35 | Vikhlyantseva, Natalia v Rebecca Peterson | 7-5,6-1 |
| WTA Miami Qual | 2018/03/20 14:00 | Vikhlyantseva, Natalia v Gibbs, Nicole | 7-6,6-4 |
| WTA Miami Qual | 2018/03/19 14:00 | Vikhlyantseva, Natalia v Emiliana Arango | 6-3,6-2 |
| WTA - Indian Wells | 2018/03/10 20:35 | Vikhlyantseva, Natalia v Goerges, Julia | 4-6,1-6 |
| WTA - Indian Wells | 2018/03/08 20:45 | Vera Zvonareva v Vikhlyantseva, Natalia | 3-6,2-6 |
| WTA Prague | 2018/05/01 09:00 | Smitkova, Tereza v Kvitova, Petra | 1-6,3-6 |
| WTA - Stuttgart | 2018/04/25 17:10 | Kvitova, Petra v Angelique Kerber | 3-6,2-6 |
| Fed Cup, Groupe Mondial | 2018/04/22 10:10 | Angelique Kerber v Kvitova, Petra | 2-6,2-6 |
| Fed Cup, Groupe Mondial | 2018/04/21 10:00 | Goerges, Julia v Kvitova, Petra | 3-6,2-6 |
| WTA - Charleston | 2018/04/04 18:50 | Pliskova, Kristyna v Kvitova, Petra | 1-6,6-1,6-3 |
| WTA - Miami | 2018/03/27 01:45 | Jelena Ostapenko v Kvitova, Petra | 7-6,6-3 |
| WTA - Miami | 2018/03/25 23:30 | Sofia Kenin v Kvitova, Petra | 6-3,2-6,4-6 |
| WTA - Miami | 2018/03/23 16:20 | Aryna Sabalenka v Kvitova, Petra | 5-7,6-3,3-6 |