Stadium: Center Court Round: 26 Ground: Hardcourt outdoor
| Challenger Biella MD | 2021/06/03 15:10 | Silva/Zuk v Grenier/Muller | 6-2,6-3 |
| Challenger Biella MD | 2021/06/02 13:05 | Collarini/Galdos v Grenier/Muller | 6-7,4-6 |
| Challenger Nur-Sultan MD | 2021/02/25 08:25 | Lenz/Quiroz v Grenier/Muller | 6-4,6-3 |
| Challenger Nur-Sultan MD | 2021/02/24 04:00 | Marterer/Rola v Grenier/Muller | 4-6,4-6 |