Stadium: Estadio Akron de Tenis Round: 29 Ground: Hardcourt indoor
| WTA Finals WD | 2021/11/13 22:25 | Krejcikova/Siniakova v Hsieh/Mertens | 6-3,6-1 |
| WTA Finals WD | 2021/11/17 03:50 | Aoyama/Shibahara v Hsieh/Mertens | 2-6,2-6 |
| WTA Finals WD | 2021/11/16 04:35 | Hsieh/Mertens v Fichman/Olmos | 6-4,7-6 |
| WTA Finals WD | 2021/11/13 22:25 | Krejcikova/Siniakova v Hsieh/Mertens | 6-3,6-1 |
| WTA Finals WD | 2021/11/11 21:45 | Hsieh/Mertens v Guarachi/Krawczyk | 7-6,6-2 |
| WTA Indian Wells WD | 2021/10/16 18:00 | Kudermetova/Rybakina v Hsieh/Mertens | 6-7,3-6 |
| WTA Indian Wells WD | 2021/10/14 20:00 | Aoyama/Shibahara v Hsieh/Mertens | 2-6,0-6 |
| WTA Indian Wells WD | 2021/10/13 01:00 | Fernandez/Gauff v Hsieh/Mertens | 5-7,4-6 |
| WTA Indian Wells WD | 2021/10/11 20:10 | Mattek-Sands/Swiatek v Hsieh/Mertens | 6-1,4-6,8-10 |
| WTA Finals WD | 2021/11/16 21:45 | Krejcikova/Siniakova v Melichar/Schuurs | 3-6,6-3,10-6 |
| WTA Finals WD | 2021/11/15 22:00 | Krejcikova/Siniakova v Guarachi/Krawczyk | 5-7,7-6,10-7 |
| WTA Finals WD | 2021/11/13 22:25 | Krejcikova/Siniakova v Hsieh/Mertens | 6-3,6-1 |
| WTA Finals WD | 2021/11/12 03:10 | Krejcikova/Siniakova v Fichman/Olmos | 6-4,6-1 |
| WTA Indian Wells WD | 2021/10/13 02:15 | Krejcikova/Siniakova v Kichenok/Ostapenko | 6-2,4-6,8-10 |
| WTA Indian Wells WD | 2021/10/11 02:35 | Krejcikova/Siniakova v Eikeri/Sasnovich | 6-3,6-2 |
| WTA Indian Wells WD | 2021/10/09 02:10 | Krejcikova/Siniakova v Golubic/Teichmann | 6-7,6-2,10-2 |
| US Open Women WD | 2021/09/02 21:10 | Linette/Pera v Krejcikova/Siniakova | 6-3,6-4 |