Stadium: Cancha 4 Round: 54
| ITF Argentina F10 | 2017/11/24 13:00 | Juan Ignacio Galarza v Gonzalo Villanueva | 7-6,2-6,6-4 |
| Challenger Medellin | 2017/07/12 16:00 | Gonzalo Villanueva v Juan Ignacio Galarza | 1-6,6-4,6-7 |
| ITF Argentina F2 | 2017/06/16 16:10 | Juan Ignacio Galarza v Gonzalo Villanueva | 3-6,6-2,7-6 |
| ITF Argentina F4 | 2015/05/05 16:15 | Juan Ignacio Galarza v Gonzalo Villanueva | 1-6,7-5,6-2 |
| ITF Argentina F1 | 2015/03/11 17:05 | Juan Ignacio Galarza v Gonzalo Villanueva | 6-3,6-2 |
| Challenger Punta Del Este Qual | 2018/02/25 15:55 | Juan Ignacio Galarza v Roberto Cid Subervi | 6-3,4-6,6-3 |
| ATP Buenos Aires Qual | 2018/02/10 19:00 | Thomaz Bellucci v Juan Ignacio Galarza | 6-4,6-4 |
| ITF Argentina F12 | 2017/12/09 18:30 | Martin Cuevas v Juan Ignacio Galarza | 6-3,6-7,6-4 |
| ITF Argentina F12 | 2017/12/08 16:30 | Juan Ignacio Galarza v Christian Lindell | 7-6,6-3 |
| ITF Argentina F12 | 2017/12/07 14:30 | Juan Ignacio Galarza v Daniel Dutra Da Silva | 2-6,6-3,6-4 |
| ITF Argentina F12 | 2017/12/06 17:10 | Juan Ignacio Galarza v Santiago Besada | 7-5,6-1 |
| ITF Argentina F12 | 2017/12/05 16:50 | Juan Ignacio Galarza v Lorenzo Joaquin Rodriguez | 7-6,7-6 |
| ITF Argentina F11 | 2017/11/29 17:00 | Juan Ignacio Galarza v Manuel Pena Lopez | 3-6,6-7 |
| Challenger Punta Del Este Qual | 2018/02/25 16:20 | Franco Agamenone v Gonzalo Villanueva | 1-6,3-6 |
| Challenger Punta Del Este Qual | 2018/02/24 19:40 | Gonzalo Villanueva v Gonzalo Lama | 7-5,3-6,6-2 |
| ITF Argentina F12 | 2017/12/06 14:15 | Gonzalo Villanueva v Daniel Dutra Da Silva | 1-6,6-7 |
| ITF Argentina F12 | 2017/12/04 13:30 | Gonzalo Villanueva v Facundo Juarez | 6-3,1-6,6-3 |
| ITF Argentina F11 | 2017/11/30 13:55 | Andrea Collarini v Gonzalo Villanueva | 3-6,6-3,6-2 |
| ITF Argentina F11 | 2017/11/29 15:30 | Gonzalo Villanueva v Tomas Lipovsek Puches | 6-1,6-4 |
| ITF Argentina F11 | 2017/11/28 14:45 | Alan Kohen v Gonzalo Villanueva | 3-6,2-6 |
| ITF Argentina F10 | 2017/11/24 13:00 | Juan Ignacio Galarza v Gonzalo Villanueva | 7-6,2-6,6-4 |