Stadium: Court 10 Round: 26 Ground: Clay
| ITF Argentina F6 | 2017/09/05 12:00 | Nicolas Alberto Arreche v Gonzalo Villanueva | 2-6,1-6 |
| ITF Argentina F4 | 2017/08/22 17:55 | Gonzalo Villanueva v Nicolas Alberto Arreche | 7-6,0-6,2-6 |
| ITF Chile F8 | 2014/11/26 13:00 | Nicolas Alberto Arreche v Gonzalo Villanueva | 6-4,6-3 |
| ITF M25 Hurlingham | 2020/03/04 13:00 | Gonzalo Villanueva v Jose Pereira | 6-4,6-1 |
| ITF M25 Rio Cuarto | 2020/02/25 18:30 | Facundo Diaz Acosta v Gonzalo Villanueva | 6-2,7-5 |
| ITF M25 Punta del Este | 2020/02/20 13:00 | Santiago Rodriguez Taverna v Gonzalo Villanueva | 3-6,6-1,6-4 |
| ITF M25 Punta del Este | 2020/02/19 16:25 | Mariano Kestelboim v Gonzalo Villanueva | 1-6,7-6,2-6 |
| ITF M25 Punta del Este | 2020/02/18 19:35 | Agustin Riquelme Coppari v Gonzalo Villanueva | 1-6,1-6 |
| ITF M25 Lima | 2020/02/14 17:25 | Pedro Sakamoto v Gonzalo Villanueva | 6-3,6-4 |
| ITF M25 Lima | 2020/02/11 17:00 | Gonzalo Bueno v Gonzalo Villanueva | 2-6,1-6 |
| ITF M25 Lima | 2020/02/05 14:30 | Tomas Barrios Vera v Gonzalo Villanueva | 6-3,6-3 |
| ITF M25 Hurlingham | 2020/03/04 12:55 | Tomas Farjat v Nicolas Alberto Arreche | 0-6,1-6 |
| ITF M25 Rio Cuarto | 2020/02/26 17:20 | Santiago Rodriguez Taverna v Nicolas Alberto Arreche | 7-6,6-2 |
| ITF M25 Punta del Este | 2020/02/18 18:10 | Nicolas Alberto Arreche v Juan Manuel Cerundolo | 0-6,1-6 |
| ITF M25 Lima | 2020/02/14 18:10 | Nicolas Alberto Arreche v Tomas Barrios Vera | 6-7,0-6 |
| ITF M25 Lima | 2020/02/13 14:30 | Nicolas Alberto Arreche v Matias Zukas | 6-7,6-3,7-5 |
| ITF M25 Lima | 2020/02/11 16:30 | Oscar Jose Gutierrez v Nicolas Alberto Arreche | 6-7,6-3,3-6 |
| ITF M25 Lima | 2020/02/03 17:10 | Nicolas Alberto Arreche v Franco Agamenone | 2-6,6-4,6-10 |
| ITF M25 Weston | 2020/01/28 14:00 | Nicolas Alberto Arreche v Alan Kohen | 3-6,6-1,9-11 |