Stadium: Court 2 Round: 26 Ground: Clay
| Challenger Belgrade - MD | 2021/04/16 15:20 | Erlich/Vasilevski v Duran/Molteni | 6-3,5-7,9-11 |
| Challenger Belgrade - MD | 2021/04/15 14:40 | Erlich/Vasilevski v Sitak/Vega Hernandez | 6-1,6-1 |
| Challenger Belgrade - MD | 2021/04/14 12:35 | Gonzalez/Sharan v Erlich/Vasilevski | 3-6,3-6 |
| ATP Marbella - MD | 2021/04/07 13:30 | Erlich/Vasilevski v Arevalo/Middelkoop | 4-6,6-7 |
| ATP Doha - MD | 2021/03/09 15:30 | Chardy/Martin v Erlich/Vasilevski | 6-2,6-2 |
| ATP Montpellier - MD | 2021/02/28 10:30 | Kontinen/Roger-Vasselin v Erlich/Vasilevski | 6-2,7-5 |
| ATP Montpellier - MD | 2021/02/26 11:00 | Erlich/Vasilevski v Lammons/Withrow | 7-6,6-4 |
| ATP Montpellier - MD | 2021/02/24 18:30 | Goransson/Pel v Erlich/Vasilevski | 4-6,6-4,7-10 |
| ATP Lyon - MD | 2021/05/17 10:40 | Molteni/Nielsen v Kontinen/Roger-Vasselin | 2-6,6-7 |
| ATP Estoril - MD | 2021/04/28 12:50 | Molteni/Nielsen v Behar/Escobar | 1-6,4-6 |
| ATP Belgrad - MD | 2021/04/20 11:30 | Berrettini/Vavassori v Molteni/Nielsen | 7-6,6-4 |