Stadium: Cancha Central Round: 27 Ground: Clay
| ITF Argentina F7 | 2017/09/13 13:10 | Arguello, Facundo v Gonzalo Villanueva | 6-7,7-6,6-4 |
| ITF Argentina F6 | 2017/09/06 15:45 | Gonzalo Villanueva v Arguello, Facundo | 3-6,4-6 |
| ITF Argentina F2 | 2018/05/23 14:40 | Arguello, Facundo v Vilaro, Alejo | 6-1,6-3 |
| ITF Argentina F2 | 2018/05/22 18:30 | Arguello, Facundo v Bramajo, Santiago | 6-1,6-2 |
| ITF Argentina F1 | 2018/05/19 13:00 | Arguello, Facundo v Camilo Ugo Carabelli | 3-6,6-4,6-4 |
| ITF Argentina F1 | 2018/05/18 13:00 | Arguello, Facundo v Santiago Rodriguez Taverna | 6-1,6-4 |
| ITF Argentina F1 | 2018/05/17 13:00 | Arguello, Facundo v Franco Emanuel Egea | 6-2,6-4 |
| ITF Argentina F1 | 2018/05/16 15:15 | Arguello, Facundo v Gagliardo, Lorenzo | 6-3,6-2 |
| ITF Argentina F1 | 2018/05/15 13:40 | Arguello, Facundo v Caula, Bruno | 6-2,6-4 |
| Challenger - Mexique | 2018/04/14 22:30 | Quiroz, Roberto v Arguello, Facundo | 3-6,6-0,6-3 |
| ITF Argentina F2 | 2018/05/23 16:45 | Hidalgo, Gabriel Alejandro v Gonzalo Villanueva | 1-6,0-6 |
| ITF Argentina F2 | 2018/05/22 18:20 | Tomas Martin Etcheverry v Gonzalo Villanueva | 4-6,4-6 |
| ITF Brazil F4 | 2018/05/16 22:10 | Gonzalo Villanueva v Thiago Seyboth Wild | 3-6,5-7 |
| ITF Brazil F4 | 2018/05/14 17:15 | Gonzalo Villanueva v Alejandro Tabilo | 7-6,6-3 |
| ITF Brazil F3 | 2018/05/08 13:00 | Gonzalo Villanueva v Matos, Rafael | 2-6,6-3,3-6 |
| ITF Brazil F2 | 2018/05/06 15:00 | Gonzalo Villanueva v Matos, Rafael | 1-6,3-6 |
| ITF Brazil F2 | 2018/05/05 18:05 | Gonzalo Villanueva v Oscar Jose Gutierrez | 6-7,6-3,6-3 |
| ITF Brazil F2 | 2018/05/04 17:30 | Marcelo Zormann v Gonzalo Villanueva | 6-4,6-7,5-7 |