Stadium: Centre Court Round: 26 Ground: Clay
| ITF M25 Rio do Sul | 2021/10/19 14:30 | Igor Marcondes v Joao Pedro G. Dos Santos | 6-4,6-0 |
| ITF M25 Johannesburg | 2021/09/23 07:00 | Igor Marcondes v Kyle Seelig | 6-1,6-7,1-6 |
| ITF M25 Johannesburg | 2021/09/21 10:30 | Igor Marcondes v Mehluli D A Sibanda | 6-1,7-5 |
| ITF M25 Johannesburg | 2021/09/14 08:00 | Igor Marcondes v Kelsey Stevenson | 5-7,6-7 |
| ITF M25 Sintra | 2021/09/08 14:35 | Dan Added v Igor Marcondes | 6-2,6-4 |
| ITF M25 Poznan | 2021/08/27 11:30 | Pawel Juszczak v Igor Marcondes | 6-2,5-7,6-4 |
| ITF M25 Poznan | 2021/08/26 09:00 | Igor Marcondes v Martins Podzus | 6-4,6-1 |
| ITF M15 Lodz | 2021/08/20 08:00 | Igor Marcondes v Wilson Leite | 2-6,1-6 |
| ITF M25 Rio do Sul | 2021/10/19 13:30 | Bruno Fernandez v Gustavo Heide | 1-6,2-6 |
| ITF M15 Recife | 2021/09/26 13:30 | Gustavo Heide v Jose Pereira | 6-4,6-2 |
| ITF M15 Recife | 2021/09/25 14:00 | Eduardo Ribeiro v Gustavo Heide | 5-7,4-6 |
| ITF M15 Recife | 2021/09/24 16:55 | Daniel Dutra Da Silva v Gustavo Heide | 4-6,4-6 |
| 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 |