Stadium: Cancha Central Round: 44 Ground: Clay
| ITF Chile F2 | 2018/11/18 16:00 | Gabriel Alejandro Hidalgo v Lautaro Agustin Falabella | 6-3,6-3 |
| ITF Argentina F9 | 2018/11/14 13:00 | Mariano Kestelboim v Gabriel Alejandro Hidalgo | 6-4,6-1 |
| ITF Argentina F9 | 2018/11/13 14:45 | Juan Manuel Cerundolo v Gabriel Alejandro Hidalgo | 1-6,2-6 |
| ITF Argentina F8 | 2018/11/07 15:25 | Gabriel Alejandro Hidalgo v Agustin Velotti | 0-6,3-6 |
| ITF Argentina F8 | 2018/11/05 13:00 | Arklon H D Pino v Gabriel Alejandro Hidalgo | 5-7,3-6 |
| ITF Argentina F7 | 2018/10/31 19:00 | Gabriel Alejandro Hidalgo v Manuel Pena Lopez | 6-4,3-6,1-6 |
| ITF Argentina F7 | 2018/10/30 17:00 | Gabriel Alejandro Hidalgo v Joaquin Ledesma | 6-0,6-0 |
| ITF Romania F13 | 2018/09/14 08:35 | Gabriel Alejandro Hidalgo v Juan Bautista Otegui | 2-6,6-3,6-7 |
| ITF Argentina F9 | 2018/11/13 12:30 | Conner Huertas Del Pino v Alan Postay | 6-4,6-2 |
| ITF Argentina F9 | 2018/11/12 17:00 | Alan Postay v Mateo Labuckas | 7-6,2-6,7-6 |
| ITF Argentina F8 | 2018/11/03 13:00 | Nicolas Bruna v Alan Postay | 6-7,6-1,6-1 |
| ITF Argentina F7 | 2018/10/28 15:30 | Boruch Skierkier v Alan Postay | 6-1,7-6 |
| ITF Peru F3 | 2018/10/07 16:00 | Alan Postay v Enrique Bogo | 2-6,6-3,6-7 |
| ITF Peru F2 | 2018/09/30 15:30 | Antonio Cayetano March v Alan Postay | 7-5,6-4 |
| ITF Peru F1 | 2018/09/26 16:20 | Nicolas Alberto Arreche v Alan Postay | 6-1,6-0 |
| ITF Peru F1 | 2018/09/25 15:00 | Andre Ku Meza v Alan Postay | 6-3,1-6,6-7 |