Stadium: Court 1 Round: 28 Ground: Clay
| ITF Argentina F4 | 2018/09/06 18:10 | Juan Ignacio Galarza v Gonzalo Villanueva | 6-3,7-5 |
| Challenger Punta Del Este Qual | 2018/02/26 14:30 | Juan Ignacio Galarza v Gonzalo Villanueva | 6-3,6-2 |
| 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 |
| ITF M15 Pinamar | 2019/03/29 13:00 | Guido Ivan Justo v Juan Ignacio Galarza | 3-6,0-6 |
| ITF M15 Pinamar | 2019/03/28 12:30 | Franco Agamenone v Juan Ignacio Galarza | 2-6,1-6 |
| ITF M15 Pinamar | 2019/03/27 12:30 | Gabriel Alejandro Hidalgo v Juan Ignacio Galarza | 1-6,2-6 |
| ITF M15 Pinamar | 2019/03/20 18:10 | Franco Agamenone v Juan Ignacio Galarza | 4-6,6-4,6-4 |
| Challenger Punta del Este | 2019/01/21 18:55 | Alejandro Gonzalez v Juan Ignacio Galarza | 7-5,6-3 |
| ITF Chile F3 | 2018/11/28 14:00 | Michel Vernier v Juan Ignacio Galarza | 4-6,7-6,6-2 |
| ITF Chile F3 | 2018/11/27 14:00 | Nicolas Alberto Arreche v Juan Ignacio Galarza | 1-6,0-6 |
| ITF Chile F2 | 2018/11/20 22:45 | Juan Ignacio Galarza v Bastian Malla | 6-3,4-6,4-6 |
| ITF M15 Pinamar | 2019/03/29 13:00 | Gonzalo Villanueva v Juan Manuel Cerundolo | 6-2,6-1 |
| ITF M15 Pinamar | 2019/03/28 12:30 | Gonzalo Villanueva v Francisco Comesana | 6-2,6-1 |
| ITF M15 Pinamar | 2019/03/26 15:50 | Gonzalo Villanueva v Thiago Agustin Tirante | 7-5,6-3 |
| ITF M15 Pinamar | 2019/03/22 15:00 | Gonzalo Villanueva v Francisco Cerundolo | 2-6,6-2,1-6 |
| ITF M15 Pinamar | 2019/03/21 12:30 | Gonzalo Villanueva v Mariano Navone | 7-6,6-4 |
| ITF M15 Pinamar | 2019/03/20 12:30 | Gonzalo Villanueva v Gaston Tonello | 6-1,6-4 |
| Challenger Santiago | 2019/03/06 14:00 | Gonzalo Villanueva v Federico Gaio | 6-3,3-6,3-6 |
| Challenger Santiago | 2019/03/05 14:00 | Alexandre Muller v Gonzalo Villanueva | 6-4,6-7,1-6 |