Stadium: Central Court Round: 29 Ground: Hardcourt indoor
| Challenger Oeiras MD | 2021/05/28 16:50 | Cachin/Ugo Carabelli v De Jong/Van Rijthoven | 4-6,4-6 |
| Challenger Oeiras MD | 2021/05/26 14:50 | Brown/Weissborn v De Jong/Van Rijthoven | 6-4,1-6,10-12 |
| Challenger Oeiras MD | 2021/05/25 15:30 | De Jong/Van Rijthoven v Tseng/Wu | 6-2,6-1 |
| Challenger Oeiras MD | 2021/05/28 16:15 | Borges/Cabral v Lenz/Quiroz | 6-7,2-6 |
| Challenger Oeiras MD | 2021/05/27 17:00 | Araujo/Coelho v Lenz/Quiroz | 5-7,7-5,9-11 |
| Challenger Oeiras MD | 2021/05/26 13:35 | Lenz/Quiroz v Doumbia/Reboul | 2-6,7-6,10-3 |
| Challenger Nur-Sultan MD | 2021/02/26 11:30 | Molchanov/Nedovyesov v Lenz/Quiroz | 4-6,6-3,10-4 |
| 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 13:55 | Lenz/Quiroz v Nedelko/Peniston | 6-2,7-6 |