Stadium: Grandstand Round: 28 Ground: Hardcourt outdoor
| WTA Hertogenbosch WD | 2018/06/11 13:25 | Mertens/Schuurs v Christian/Santamaria | 6-3,6-3 |
| WTA Cincinnati WD | 2018/08/17 23:00 | Krejcikova/Siniakova v Mertens/Schuurs | 4-6,1-6 |
| WTA Cincinnati WD | 2018/08/15 19:30 | Brady/Dolehide v Mertens/Schuurs | 6-7,7-5,7-10 |
| WTA Cincinnati WD | 2018/08/14 19:40 | Tomljanovic/Zheng v Mertens/Schuurs | 3-6,2-6 |
| Wimbledon Women WD | 2018/07/09 12:30 | Mertens/Schuurs v Melichar/Peschke | 6-7,3-6 |
| Wimbledon Women WD | 2018/07/06 16:00 | Mertens/Schuurs v Makarova/Zvonareva | 6-4,6-4 |
| Wimbledon Women WD | 2018/07/05 16:50 | Mertens/Schuurs v Cirstea/Sorribes Tormo | 7-5,6-4 |
| WTA Eastbourne WD | 2018/06/26 16:10 | Hlavackova/Strycova v Mertens/Schuurs | 2-6,6-7 |
| WTA Birmingham WD | 2018/06/24 14:55 | Babos/Mladenovic v Mertens/Schuurs | 4-6,6-3,10-8 |
| WTA Cincinnati WD | 2018/08/17 17:50 | Klepac/Martinez Sanchez v Christian/Santamaria | 6-7,2-6 |
| WTA Cincinnati WD | 2018/08/16 02:30 | Han/Jurak v Christian/Santamaria | 6-1,1-6,7-10 |
| WTA Cincinnati WD | 2018/08/14 21:20 | Christian/Santamaria v Begu/Niculescu | 7-5,7-5 |
| WTA San Jose WD | 2018/08/02 03:20 | Christian/Santamaria v Kichenok/Kichenok | 6-4,3-6,7-10 |
| WTA Mallorca WD | 2018/06/22 16:00 | Christian/Santamaria v Safarova/Stefkova | 4-6,3-6 |
| WTA Mallorca WD | 2018/06/18 16:00 | Christian/Santamaria v Azarenka/Kuznetsova | 6-2,6-3 |
| WTA Hertogenbosch WD | 2018/06/11 13:25 | Mertens/Schuurs v Christian/Santamaria | 6-3,6-3 |
| WTA Bol WD | 2018/06/08 12:00 | Soler-Espinosa/Stefkova v Christian/Santamaria | 6-2,6-7,10-5 |