Estadio: Court 2 Round: 14 Ground: Clay
| Challenger Florianópolis | 2021/12/10 15:30 | Nicolas Barrientos v Genaro Alberto Olivieri | 2-6,4-6 |
| Challenger Florianópolis | 2021/12/09 13:00 | Nicolas Barrientos v Gonzalo Villanueva | 7-6,6-1 |
| Challenger Florianópolis | 2021/12/07 16:50 | Juan Pablo Ficovich v Nicolas Barrientos | 3-6,0-6 |
| Challenger Florianópolis | 2021/12/06 14:20 | Alejandro Gomez v Nicolas Barrientos | 4-6,2-6 |
| Challenger Florianópolis | 2021/12/05 15:25 | Victor Tosetto v Nicolas Barrientos | 1-6,1-6 |
| Challenger de Guayaquil | 2021/11/01 16:00 | Nicolas Alvarez v Nicolas Barrientos | 2-6,6-4,6-4 |
| Challenger de Guayaquil | 2021/10/31 18:30 | Nicolas Barrientos v Alejandro Gomez | 7-6,6-4 |
| Challenger de Bogotá | 2021/10/23 15:00 | Gerald Melzer v Nicolas Barrientos | 6-2,6-7,6-1 |
| 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 | José Pereira v Joao Giannella | 6-0,6-3 |
| ITF M15 São 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 |