Stadium: Court 18 Round: 54 Ground: Clay
| ITF M15 Brasilia | 2021/11/02 15:00 | Iago Almeida v Christian Oliveira | 2-6,4-6 |
| ITF M15 Recife | 2021/09/21 13:00 | Lorenzo Esquici v Iago Almeida | 6-2,6-3 |
| ITF M15 Brasilia | 2021/11/02 13:20 | Gabriel Roveri Sidney v Joao Giannella | 6-3,6-2 |
| ITF M25 Rio do Sul | 2021/10/17 12:00 | Joao Giannella v Pedro Cressoni | 2-6,6-3,9-11 |
| ITF M15 Recife | 2021/09/21 14:30 | Jose Pereira v Joao Giannella | 6-0,6-3 |
| ITF M15 Sao Paulo | 2019/10/14 14:00 | Marcio Eduardo Silva v Joao Giannella | 6-1,6-2 |
| ITF M25 Rio de Janeiro | 2019/10/08 15:35 | Andre Miele v Joao Giannella | 6-1,6-1 |
| ITF M25 Rio de Janeiro | 2019/10/07 14:00 | Joao Giannella v Luis Britto | 6-1,6-2 |
| ITF M15 Curitiba | 2019/06/25 14:35 | Oscar Gabriel Ortiz v Joao Giannella | 6-3,6-0 |
| ITF M15 Curitiba | 2019/06/24 18:45 | Felipe Muzzi v Joao Giannella | 3-6,6-7 |