Stadium: Cancha Central Round: 26 Ground: Clay
| ITF Argentina F2 | 2018/05/22 16:10 | Gabriel Alejandro Hidalgo v Agustin Visokolskis | 6-0,6-0 |
| ITF Argentina F1 | 2018/05/16 13:40 | Genaro Alberto Olivieri v Gabriel Alejandro Hidalgo | 6-0,6-3 |
| ITF Argentina F1 | 2018/05/15 13:15 | Alejo Vilaro v Gabriel Alejandro Hidalgo | 3-6,6-3,4-6 |
| ITF Chile F3 | 2017/12/06 16:10 | Gabriel Alejandro Hidalgo v Tomas Barrios Vera | 6-4,3-6,4-6 |
| ITF Chile F3 | 2017/12/05 14:55 | Gabriel Alejandro Hidalgo v David Fleming | 6-2,6-2 |
| ITF Chile F3 | 2017/12/04 13:00 | Gabriel Alejandro Hidalgo v Nicolas Bruna | 6-4,6-2 |
| ITF Chile F3 | 2017/12/03 14:00 | Gabriel Alejandro Hidalgo v Naim A J Saavedra | 6-3,6-2 |
| ITF Chile F2 | 2017/11/29 17:30 | Gabriel Alejandro Hidalgo v Juan Carlos Saez | 2-6,2-6 |
| 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 Rafael Matos | 2-6,6-3,3-6 |
| ITF Brazil F2 | 2018/05/06 15:00 | Gonzalo Villanueva v Rafael Matos | 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 |
| ITF Brazil F2 | 2018/05/01 18:40 | Gonzalo Villanueva v Tomas Martin Etcheverry | 5-7,6-3,7-6 |