Round: 25 Ground: Clay
| ITF Argentina F3 | 2015/03/24 14:50 | Mariano Kestelboim v Gonzalo Villanueva | 6-4,0-6,3-6 |
| ITF Argentina F9 | 2015/08/22 12:30 | Franco Agamenone v Gonzalo Villanueva | 2-6,2-6 |
| ITF Argentina F9 | 2015/08/21 17:15 | Gonzalo Villanueva v Juan Ignacio Ameal | 2-6,6-1,6-1 |
| ITF Argentina F9 | 2015/08/20 12:00 | Santiago Villarruel v Gonzalo Villanueva | 7-6,2-6,0-6 |
| ITF Argentina F8 | 2015/08/11 17:15 | Daniel Dutra Da Silva v Gonzalo Villanueva | 6-1,6-3 |
| ITF Brazil F3 | 2015/06/24 15:00 | Gonzalo Villanueva v Franco Emanuel Egea | 3-6,2-6 |
| ITF Brazil F3 | 2015/06/23 16:40 | Andre Miele v Gonzalo Villanueva | 2-6,1-6 |
| ITF Brazil F3 | 2015/06/21 16:00 | Gonzalo Villanueva v Federico Nicolas Bertucci | 6-1,6-1 |
| ITF Brazil F3 | 2015/06/21 12:00 | Gonzalo Villanueva v Enrique Bogo | 6-4,6-4 |
| ITF Argentina F9 | 2015/08/20 16:45 | Mariano Kestelboim v Juan Ignacio Galarza | 3-6,2-6 |
| ITF Argentina F8 | 2015/08/12 12:00 | Daniel Dutra Da Silva v Mariano Kestelboim | 4-6,6-2,6-3 |
| ITF Argentina F8 | 2015/08/11 15:20 | Mariano Kestelboim v Christopher Diaz-Figueroa | 6-0,6-2 |
| ITF Romania F10 | 2015/07/23 09:30 | Mariano Kestelboim v Dragos Dima | 4-6,6-3,2-6 |
| ITF Romania F10 | 2015/07/22 06:30 | Mariano Kestelboim v Razvan Bobleaga | 6-1,6-0 |
| ITF Romania F9 | 2015/07/15 07:00 | Petru-Alexandru Luncanu v Mariano Kestelboim | 6-3,6-3 |
| ITF Romania F8 | 2015/07/08 08:35 | Petru-Alexandru Luncanu v Mariano Kestelboim | 6-4,6-3 |
| ITF Romania F7 | 2015/07/04 08:30 | Mariano Kestelboim v Laurynas Grigelis | 4-6,3-6 |