Ground: Clay
| ITF Brazil F2 | 2015/06/18 19:55 | Hernan Casanova v Gonzalo Villanueva | 5-7,6-1,6-4 |
| ITF Brazil F2 | 2015/06/16 15:35 | Gonzalo Villanueva v Alexandre Tsuchiya | 3-6,7-5,6-3 |
| ITF Brazil F1 | 2015/06/08 13:30 | Gonzalo Villanueva v Daniel Dutra Da Silva | 3-6,2-6 |
| ITF Argentina F7 | 2015/05/29 14:40 | Tomas Lipovsek Puches v Gonzalo Villanueva | 6-4,6-2 |
| ITF Argentina F7 | 2015/05/28 13:30 | R. Urzua-Rivera v Gonzalo Villanueva | 6-3,3-6,2-6 |
| ITF Argentina F7 | 2015/05/27 14:55 | Franco Emanuel Egea v Gonzalo Villanueva | 6-3,2-6,0-6 |
| ITF Argentina F5 | 2015/05/14 18:40 | Francisco Bahamonde v Gonzalo Villanueva | 3-6,7-6,6-1 |
| ITF Argentina F5 | 2015/05/11 14:30 | Gonzalo Villanueva v Tomas Lipovsek Puches | 6-3,6-1 |
| ITF Brazil F2 | 2015/06/14 17:00 | Kevin Borges Pereira v Federico Moreno | 1-6,2-6 |
| ITF Brazil F4 | 2014/04/28 14:50 | Kevin Borges Pereira v Filipe Brandao | 1-6,2-6 |