Stadium: Cancha 1 Round: 24 Ground: Clay
| ITF Argentina F5 | 2018/09/13 15:35 | Gonzalo Villanueva v Rafael Matos | 6-2,6-2 |
| ITF Brazil F3 | 2018/05/08 13:00 | Gonzalo Villanueva v Rafael Matos | 2-6,6-3,3-6 |
| ITF Brazil F2 | 2018/05/06 15:00 | Gonzalo Villanueva v Rafael Matos | 1-6,3-6 |
| Challenger Santo Domingo | 2019/10/08 23:00 | Gonzalo Villanueva v Hugo Dellien | 2-6,3-6 |
| Challenger Santo Domingo | 2019/10/07 19:00 | Gonzalo Villanueva v Andres Molteni | 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 Fernando Romboli | 6-2,6-2 |
| Challenger Buenos Aires | 2019/09/24 14:00 | Federico Zeballos v Gonzalo Villanueva | 6-4,6-1 |
| ITF M15 Buenos Aires | 2019/09/22 16:50 | Maximiliano Estevez v Gonzalo Villanueva | 6-4,4-6,1-6 |
| ITF M15 Buenos Aires | 2019/09/21 16:40 | Genaro Alberto Olivieri v Gonzalo Villanueva | 4-6,3-6 |
| ITF M15 Buenos Aires | 2019/09/20 15:00 | Facundo Diaz Acosta v Gonzalo Villanueva | 5-7,1-6 |
| ITF M15 Sao Paulo | 2019/10/20 16:55 | Bastian Malla v Rafael Matos | 6-3,6-2 |
| ITF M15 Sao Paulo | 2019/10/19 16:30 | Igor Marcondes v Rafael Matos | 6-3,4-6,5-7 |
| ITF M15 Sao Paulo | 2019/10/17 16:25 | Alejo Lorenzo Lingua Lavallen v Rafael Matos | 6-7,3-6 |
| ITF M15 Sao Paulo | 2019/10/15 16:55 | Matheus Pucinelli De Almeida v Rafael Matos | 7-6,5-7,6-7 |
| ITF M25 Rio de Janeiro | 2019/10/10 21:40 | Rafael Matos v Facundo Diaz Acosta | 6-1,6-3 |
| Challenger Campinas | 2019/10/02 15:05 | Rafael Matos v Francisco Cerundolo | 2-6,3-6 |
| Challenger Buenos Aires | 2019/09/23 19:00 | Thiago Agustin Tirante v Rafael Matos | 6-4,7-5 |
| ITF M25 Seville | 2019/09/12 09:00 | Rafael Matos v Daniel Dutra Da Silva | 2-6,3-6 |