stadio: Arantxa Sanchez Stadium Round: 27 Ground: Clay
| ATP Acapulco DM | 2021/03/20 00:00 | Granollers/Zeballos v Herbert/Mahut | 6-3,7-6 |
| ATP Madrid DM | 2021/05/05 10:55 | Granollers/Zeballos v Khachanov/Rublev | 6-3,6-2 |
| ATP Barcellona DM | 2021/04/20 13:40 | Krawietz/Tecau v Granollers/Zeballos | 7-6,7-6 |
| ATP Monte Carlo DM | 2021/04/17 09:30 | Granollers/Zeballos v Mektic/Pavic | 6-3,5-7,4-10 |
| ATP Monte Carlo DM | 2021/04/16 09:00 | Garin/Pella v Granollers/Zeballos | 3-6,1-6 |
| ATP Monte Carlo DM | 2021/04/14 15:30 | Khachanov/Rublev v Granollers/Zeballos | 3-6,1-6 |
| ATP Miami DM | 2021/03/25 16:30 | Puetz/Zverev v Granollers/Zeballos | 6-2,6-4 |
| ATP Acapulco DM | 2021/03/21 01:00 | Granollers/Zeballos v Skupski/Skupski | 6-7,4-6 |
| ATP Acapulco DM | 2021/03/20 00:00 | Granollers/Zeballos v Herbert/Mahut | 6-3,7-6 |
| ATP Madrid DM | 2021/05/06 14:35 | Klaasen/Mclachlan v Herbert/Mahut | 6-7,6-7 |
| ATP Madrid DM | 2021/05/05 09:00 | Chardy/Martin v Herbert/Mahut | 3-6,3-6 |
| ATP Barcellona DM | 2021/04/21 17:45 | Cabal/Farah v Herbert/Mahut | 6-2,6-4 |
| ATP Monte Carlo DM | 2021/04/16 10:15 | Herbert/Mahut v Mektic/Pavic | 3-6,1-6 |
| ATP Monte Carlo DM | 2021/04/14 14:55 | Herbert/Mahut v Kontinen/Roger-Vasselin | 7-6,7-5 |
| ATP Monte Carlo DM | 2021/04/13 12:20 | Herbert/Mahut v Bolelli/Sinner | 6-4,6-4 |
| ATP Miami DM | 2021/03/28 17:30 | Herbert/Mahut v Kecmanovic/Qureshi | 6-4,4-6,3-10 |
| ATP Miami DM | 2021/03/27 21:15 | Herbert/Mahut v Bopanna/Paire | 6-3,6-2 |