Stadium: Cancha Central Round: 26 Ground: Clay
| Challenger Lima | 2018/10/23 17:20 | Juan Pablo Varillas v Facundo Arguello | 4-6,1-6 |
| Challenger Santo Domingo | 2018/10/07 14:00 | Facundo Arguello v Alejandro Gomez | 3-6,6-1,3-6 |
| Challenger Campinas | 2018/10/02 13:00 | Alejandro Gonzalez v Facundo Arguello | 6-3,7-6 |
| Challenger Biella | 2018/09/21 09:00 | Facundo Arguello v Federico Delbonis | 2-6,4-6 |
| Challenger Biella | 2018/09/20 09:30 | Facundo Arguello v Filippo Baldi | 6-4,6-2 |
| Challenger Biella | 2018/09/18 08:00 | Gastao Elias v Facundo Arguello | 5-7,0-6 |
| Challenger Szczecin | 2018/09/15 11:00 | Guido Andreozzi v Facundo Arguello | 3-6,7-6,6-4 |
| Challenger Szczecin | 2018/09/14 12:55 | Rogerio Dutra Silva v Facundo Arguello | 6-4,3-6,2-6 |
| Challenger Lima | 2018/10/23 17:30 | Gerald Melzer v Paolo Lorenzi | 6-7,6-7 |
| Challenger Santo Domingo | 2018/10/11 22:00 | Paolo Lorenzi v Federico Delbonis | 5-7,5-7 |
| Challenger Santo Domingo | 2018/10/11 15:55 | Paolo Lorenzi v Gerald Melzer | 7-6,7-6 |
| Challenger Santo Domingo | 2018/10/10 01:40 | Paolo Lorenzi v Juan Pablo Varillas | 3-6,6-1,6-0 |
| Challenger Monterrey | 2018/10/03 01:25 | Paolo Lorenzi v Jürgen Melzer | 5-7,3-6 |
| Challenger Biella | 2018/09/21 10:50 | Paolo Lorenzi v Stefano Travaglia | 2-6,5-7 |
| Challenger Biella | 2018/09/20 09:30 | Paolo Lorenzi v Ricardo Ojeda Lara | 6-2,6-1 |
| Challenger Biella | 2018/09/18 10:00 | Paolo Lorenzi v Mathias Bourgue | 6-2,6-4 |