Stadium: Court 3 Round: 26 Ground: Clay
| ITF M25 Rio do Sul MD | 2021/10/23 21:15 | Dias/Heide v Dutra Da Silva/Marcondes | 4-6,3-6 |
| ITF M25 Rio do Sul MD | 2021/10/22 19:05 | Dias/Heide v Hinsching/Ribeiro | 6-2,7-6 |
| ITF M25 Rio do Sul MD | 2021/10/21 19:45 | S Figlia/Tumasonis v Dias/Heide | 2-6,3-6 |
| ITF M25 Rio do Sul MD | 2021/10/19 16:40 | Dias/Heide v Gutierrez/Zormann | 6-1,6-4 |
| ITF M15 Recife MD | 2021/09/25 18:10 | Dias/Heide v Dutra Da Silva/Zormann | 7-6,3-6,10-8 |
| ITF M15 Recife MD | 2021/09/24 20:45 | Dias/Heide v Hinsching/Ribeiro | 6-2,6-4 |
| ITF M15 Recife MD | 2021/09/22 18:50 | Leite/Pereira v Dias/Heide | 4-6,1-6 |
| ITF M25 Medellin MD | 2021/09/18 18:40 | Klier Junior/Reis da Silva v Dias/Heide | 6-4,4-6,10-8 |