Stadium: Centre Court Round: 27 Ground: Clay
| ITF M15 Brasilia | 2021/11/04 14:55 | Marcelo Zormann v Fernando Yamacita | 6-2,6-1 |
| ITF M15 Brasilia | 2021/11/03 22:35 | Joao Lucas Reis da Silva v Marcelo Zormann | 6-7,6-7 |
| ITF M15 Brasilia | 2021/11/02 11:55 | Marcelo Zormann v Bruno Stefani Figlio | 6-0,6-2 |
| ITF M15 Brasilia | 2021/11/01 12:00 | Marcelo Zormann v Ronaldo Alexandre | 6-0,6-2 |
| ITF M25 Rio do Sul | 2021/10/22 14:20 | Pedro Boscardin Dias v Marcelo Zormann | 6-3,5-7,6-3 |
| ITF M25 Rio do Sul | 2021/10/21 13:10 | Marcelo Zormann v Daniel Dutra Da Silva | 6-4,4-6,6-1 |
| ITF M25 Rio do Sul | 2021/10/20 17:20 | Marcelo Zormann v Enrique Bogo | 6-3,6-1 |
| ITF M25 Rio do Sul | 2021/10/18 18:30 | Marcelo Zormann v Augusto Giacomolli de Andrade | 6-4,6-0 |
| ITF M15 Brasilia | 2021/11/04 16:55 | Joao M Nusdeo v Luis Britto | 0-6,4-6 |
| ITF M15 Brasilia | 2021/11/03 12:00 | Luis Britto v Leonardo Aboian | 3-6,7-6,6-4 |
| ITF M15 Cancun | 2021/10/20 15:00 | Joshua Peck v Luis Britto | 7-5,3-6,7-5 |
| ITF M15 Cancun | 2021/10/18 15:00 | Luis Britto v Adrian Contreras | 6-2,6-3 |
| ITF M15 Cancun | 2021/10/17 15:00 | Luis Britto v Lance A L Castelan | 6-4,6-3 |
| ITF M15 Cancun | 2021/10/12 14:00 | Luis Britto v Emil Reinberg | 3-6,4-6 |
| ITF M15 Cancun | 2021/10/11 17:00 | Luis Britto v Oscar Matias Leiva Biason | 6-1,6-3 |
| ITF M15 Cancun | 2021/10/05 14:00 | Emil Reinberg v Luis Britto | 7-5,6-1 |