Stadium: TÊNIS CLUBE 1 Round: 54 Ground: Hardcourt outdoor
| ITF M15 Lambare | 2021/12/16 13:00 | Ignacio Monzon v Henrique Hamamoto Ushizima | 6-0,6-2 |
| ITF M15 Lambare | 2021/12/15 13:00 | Henrique Hamamoto Ushizima v Joao M Nusdeo | 2-6,6-3,7-6 |
| ITF M15 Lambare | 2021/12/14 13:00 | Lucas Obeid v Henrique Hamamoto Ushizima | 4-6,1-6 |
| Challenger Rio De Janeiro | 2021/12/12 16:00 | Nicolas Barrientos v Joao Giannella | 6-1,6-2 |
| ITF M25 Aparecida De Goiania | 2021/11/08 16:00 | Hernando J E Isnardi v Joao Giannella | 6-3,7-6 |
| ITF M25 Aparecida De Goiania | 2021/11/07 18:30 | Iago Almeida v Joao Giannella | 0-6,0-6 |
| 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 |