Stadium: Court 12 Round: 29 Ground: Hardcourt outdoor
| ITF - Sintra M25 - MD | 2021/09/17 15:00 | Cabral/Fanselow v Araujo/Coelho | 6-0,6-4 |
| ITF - Sintra M25 - MD | 2021/09/17 12:00 | Cabral/Fanselow v Noguchi/Tokuda | 6-3,5-7,10-6 |
| ITF - Sintra M25 - MD | 2021/09/16 13:30 | Cabral/Fanselow v Faria/Liborio | 6-0,6-4 |
| ITF - Sintra M25 - MD | 2021/09/17 15:10 | Imai/Shimizu v Patino/R Taverna | 6-3,4-6,4-10 |
| ITF - Sintra M25 - MD | 2021/09/17 13:30 | Echeverria/Moro Canas v Patino/R Taverna | 3-6,6-7 |
| ITF - Sintra M25 - MD | 2021/09/16 13:50 | Knippling/Dos Santos v Patino/R Taverna | 6-4,3-6,4-10 |