Stadium: Court 1 Round: 27 Ground: Clay
| ATP Lyon MD | 2021/05/18 10:55 | Herbert/Mahut v Norrie/O'Mara | 6-1,6-1 |
| ATP Madrid MD | 2021/05/07 14:00 | Granollers/Zeballos v Herbert/Mahut | 7-6,6-2 |
| ATP Madrid MD | 2021/05/06 14:35 | Klaasen/Mclachlan v Herbert/Mahut | 6-7,6-7 |
| ATP Madrid MD | 2021/05/05 09:00 | Chardy/Martin v Herbert/Mahut | 3-6,3-6 |
| ATP Barcelona MD | 2021/04/21 17:45 | Cabal/Farah v Herbert/Mahut | 6-2,6-4 |
| ATP Monte Carlo MD | 2021/04/16 10:15 | Herbert/Mahut v Mektic/Pavic | 3-6,1-6 |
| ATP Monte Carlo MD | 2021/04/14 14:55 | Herbert/Mahut v Kontinen/Roger-Vasselin | 7-6,7-5 |
| ATP Monte Carlo MD | 2021/04/13 12:20 | Herbert/Mahut v Bolelli/Sinner | 6-4,6-4 |
| ATP Lyon MD | 2021/05/19 10:45 | Sitak/Sousa v Lopez/Martin | 6-4,6-7,11-9 |