Stadium: Court Simonne Mathieu Round: 26 Ground: Clay
| French Open Women WD | 2021/06/04 15:30 | Hsieh/Mertens v Anisimova/Potapova | 6-2,6-2 |
| French Open Women WD | 2021/06/02 11:00 | Hsieh/Mertens v Jacquemot/Lechemia | 6-2,6-3 |
| WTA Rome WD | 2021/05/13 08:00 | Hsieh/Mertens v Fichman/Olmos | 6-1,4-6,4-10 |
| WTA Madrid WD | 2021/05/03 12:00 | Hsieh/Mertens v Ostapenko/Pavlyuchenkova | 6-7,6-4,9-11 |
| French Open Women WD | 2021/06/04 11:40 | Friedsam/Wang v Mattek-Sands/Swiatek | 5-7,3-6 |
| French Open Women WD | 2021/06/02 09:00 | Droguet/Janicijevic v Mattek-Sands/Swiatek | 0-6,1-6 |
| WTA Madrid WD | 2021/05/04 12:10 | Vesnina/Zvonareva v Mattek-Sands/Swiatek | 4-6,6-3,10-5 |
| WTA Madrid WD | 2021/04/30 14:10 | Mattek-Sands/Swiatek v Carter/Stefani | 2-6,6-3,10-6 |
| WTA Miami WD | 2021/04/02 19:45 | Mattek-Sands/Swiatek v Aoyama/Shibahara | 6-3,6-7,2-10 |
| WTA Miami WD | 2021/03/31 18:15 | Kichenok/Ostapenko v Mattek-Sands/Swiatek | 1-6,4-6 |
| WTA Miami WD | 2021/03/28 17:25 | Mattek-Sands/Swiatek v Xu/Zhang | 6-3,6-1 |
| WTA Miami WD | 2021/03/26 16:35 | Blinkova/Niculescu v Mattek-Sands/Swiatek | 0-6,1-6 |