Stadium: Cancha 1 Round: 25 Ground: Clay
| Challenger Santiago | 2019/03/04 19:50 | Joao Souza v Gerard Granollers-Pujol | 6-1,6-3 |
| ATP Sao Paulo | 2019/02/23 17:05 | Alessandro Giannessi v Joao Souza | 7-6,6-3 |
| Challenger Morelos | 2019/02/19 17:20 | Joao Souza v Roberto Quiroz | 4-6,0-6 |
| Challenger Morelos | 2019/02/18 18:05 | Joao Souza v Luis Patino | 6-4,6-3 |
| Challenger Dallas | 2019/02/04 17:40 | Joao Souza v Liam Broady | 6-4,6-7,2-6 |
| ITF - Weston M25 | 2019/02/02 15:30 | Dmitry Popko v Joao Souza | 7-6,6-2 |
| ITF - Weston M25 | 2019/01/30 18:00 | Joao Souza v Jose Olivares | 6-4,6-3 |
| Challenger Punta del Este | 2019/01/22 21:35 | Thiago Monteiro v Joao Souza | 7-6,6-2 |
| ATP Sao Paulo | 2019/02/23 23:45 | Federico Coria v Facundo Arguello | 6-1,6-4 |
| ATP Cordoba | 2019/02/02 22:05 | Paolo Lorenzi v Facundo Arguello | 3-6,6-3,6-4 |
| Challenger Punta del Este | 2019/01/27 22:00 | Thiago Monteiro v Facundo Arguello | 3-6,6-2,6-3 |
| Challenger Punta del Este | 2019/01/27 00:40 | Facundo Bagnis v Facundo Arguello | 2-6,2-6 |
| Challenger Punta del Este | 2019/01/26 01:05 | Facundo Arguello v Juan Ignacio Londero | 7-6,3-6,6-1 |
| Challenger Punta del Este | 2019/01/24 17:30 | Rogerio Dutra Silva v Facundo Arguello | 3-6,4-6 |
| Challenger Punta del Este | 2019/01/23 19:10 | Alejandro Tabilo v Facundo Arguello | 2-6,6-7 |
| Challenger Buenos Aires | 2018/11/16 22:20 | Pedro Cachin v Facundo Arguello | 6-1,4-6,6-4 |