Stadium: Stadium Court Round: 27 Ground: Clay
| ITF M15 Recife | 2021/09/23 18:05 | Daniel Dutra Da Silva v Lucas Obeid | 6-2,6-0 |
| ITF M15 Recife | 2021/09/22 22:00 | Daniel Dutra Da Silva v Lorenzo Esquici | 6-2,6-1 |
| ITF M25 Lesa | 2021/08/26 10:25 | Harold Mayot v Daniel Dutra Da Silva | 6-4,6-3 |
| ITF M25 Lesa | 2021/08/24 10:00 | Daniel Dutra Da Silva v Stefano Reitano | 6-1,6-3 |
| ITF M25 Frankfurt am Main | 2021/08/13 10:00 | Daniel Dutra Da Silva v Oriol Roca Batalla | 4-6,2-6 |
| ITF M25 Frankfurt am Main | 2021/08/12 10:50 | Christian Sigsgaard v Daniel Dutra Da Silva | 6-7,3-6 |
| ITF M25 Frankfurt am Main | 2021/08/10 13:50 | Daniel Dutra Da Silva v Alexis Gautier | 6-0,6-3 |
| ITF M25 Bolzano | 2021/08/03 08:30 | Alexander Weis v Daniel Dutra Da Silva | 7-6,7-6 |
| ITF M15 Recife | 2021/09/23 13:30 | Joao M Nusdeo v Gustavo Heide | 1-6,0-6 |
| ITF M15 Recife | 2021/09/21 17:10 | Natan Rodrigues v Gustavo Heide | 1-6,3-6 |
| ITF M25 Medellin | 2021/09/15 16:35 | Pedro Boscardin Dias v Gustavo Heide | 6-3,3-6,6-3 |
| ITF M15 Ibague | 2021/09/12 15:00 | Gustavo Heide v Alejandro Gomez | 7-6,7-5 |
| ITF M15 Ibague | 2021/09/11 16:30 | Gustavo Heide v Juan Sebastian Gomez | 6-4,6-4 |
| ITF M15 Ibague | 2021/09/10 17:00 | Blu Baker v Gustavo Heide | 6-7,3-6 |
| ITF M15 Ibague | 2021/09/09 16:10 | Pedro Boscardin Dias v Gustavo Heide | 1-6,1-6 |
| ITF M15 Ibague | 2021/09/08 17:00 | Johan A Rodriguez Rodriguez v Gustavo Heide | 6-4,6-7,4-6 |