Stadium: Cancha 1 Round: 24 Ground: Clay
| ITF Argentina F5 | 2018/09/13 15:35 | Gonzalo Villanueva v Matos, Rafael | 6-2,6-2 |
| ITF Brazil F3 | 2018/05/08 13:00 | Gonzalo Villanueva v Matos, Rafael | 2-6,6-3,3-6 |
| ITF Brazil F2 | 2018/05/06 15:00 | Gonzalo Villanueva v Matos, Rafael | 1-6,3-6 |
| Challenger Guayaquil | 2019/10/29 16:00 | Gonzalo Villanueva v Sousa, Pedro | 2-6,2-6 |
| Challenger Guayaquil | 2019/10/28 20:10 | Gonzalo Villanueva v March, Antonio Cayetano | 6-4,6-3 |
| Challenger Lima | 2019/10/21 19:50 | Krstin, Pedja v Gonzalo Villanueva | 6-3,6-0 |
| Santo Domingo, Dominican Republic | 2019/10/08 23:00 | Gonzalo Villanueva v Hugo Dellien | 2-6,3-6 |
| Santo Domingo, Dominican Republic | 2019/10/07 19:00 | Gonzalo Villanueva v Molteni, Andres | 4-6,6-4,6-2 |
| Challenger Campinas | 2019/10/02 15:20 | Gonzalo Villanueva v Alejandro Tabilo | 0-6,3-6 |
| Challenger Campinas | 2019/10/01 13:00 | Gonzalo Villanueva v Romboli, Fernando | 6-2,6-2 |
| Challenger - Buenos Aires | 2019/09/24 14:00 | Federico Zeballos v Gonzalo Villanueva | 6-4,6-1 |
| Challenger Guayaquil | 2019/10/29 16:00 | Krstin, Pedja v Matos, Rafael | 6-7,6-3,6-1 |
| Challenger Guayaquil | 2019/10/28 16:00 | Matos, Rafael v Rojas, Juan Diego | 6-0,6-1 |
| Challenger Lima | 2019/10/24 17:35 | Facundo Bagnis v Matos, Rafael | 6-3,6-2 |
| Challenger Lima | 2019/10/22 20:05 | Matos, Rafael v Conner Huertas Del Pino | 6-4,6-1 |
| Challenger Lima | 2019/10/21 14:30 | Matos, Rafael v Sanchez, Rodrigo | 4-6,6-4,6-0 |
| Sao Paulo, Singles M-ITF-BRA-06A | 2019/10/20 16:55 | Malla, Bastian v Matos, Rafael | 6-3,6-2 |
| Sao Paulo, Singles M-ITF-BRA-06A | 2019/10/19 16:30 | Ribeiro Marcondes, Igor v Matos, Rafael | 6-3,4-6,5-7 |
| Sao Paulo, Singles M-ITF-BRA-06A | 2019/10/17 16:25 | Alejo Lorenzo Lingua Lavallen v Matos, Rafael | 6-7,3-6 |