Stadium: Court 14 Round: 26 Ground: Hardcourt outdoor
| WTA Istanbul WD | 2021/04/25 17:00 | Kudermetova/Mertens v Hibino/Ninomiya | 6-1,6-1 |
| WTA Istanbul WD | 2021/04/24 16:00 | Kudermetova/Mertens v Pavlyuchenkova/Potapova | 6-3,6-1 |
| WTA Istanbul WD | 2021/04/22 16:00 | Kudermetova/Mertens v Jakupovic/Sizikova | 6-4,4-6,10-8 |
| WTA Istanbul WD | 2021/04/21 11:20 | Kudermetova/Mertens v Buyukakcay/Ozgen | 6-2,6-2 |