Stadium: Estadio CIF Round: 26 Ground: Clay
| Challenger Andria | 2018/11/22 18:00 | Roberto Marcora v Paolo Lorenzi | 6-3,7-6 |
| Challenger Andria | 2018/11/20 15:15 | Roberto Marcora v Lorenzo Frigerio | 7-5,1-6,7-6 |
| Challenger Bratislava | 2018/11/03 08:30 | Tobias Simon v Roberto Marcora | 6-3,6-4 |
| Challenger Eckental | 2018/10/31 12:15 | Roberto Marcora v Sergiy Stakhovsky | 4-6,4-6 |
| Challenger Eckental | 2018/10/29 10:00 | Roberto Marcora v Joris De Loore | 6-3,6-1 |
| Challenger Eckental | 2018/10/28 11:35 | Roberto Marcora v David Poljak | 6-3,7-6 |
| Challenger Eckental | 2018/10/27 07:30 | Roberto Marcora v Bastien Presuhn | 6-1,6-4 |
| Challenger Barcelona | 2018/10/10 13:00 | Roberto Carballes Baena v Roberto Marcora | 6-2,6-1 |
| Challenger Buenos Aires | 2018/11/13 19:30 | Carlos Berlocq v Mario Vilella Martinez | 5-7,6-7 |
| Challenger Montevideo | 2018/11/11 15:00 | Mario Vilella Martinez v Carlos Berlocq | 1-6,4-6 |
| Challenger Montevideo | 2018/11/09 23:00 | Mario Vilella Martinez v Martin Cuevas | 6-3,6-4 |
| Challenger Montevideo | 2018/11/08 19:50 | Mario Vilella Martinez v Dimitar Kuzmanov | 6-2,7-6 |
| Challenger Montevideo | 2018/11/06 23:40 | Pablo Cuevas v Mario Vilella Martinez | 2-6,2-6 |
| Challenger Santo Domingo | 2018/10/08 17:30 | Mario Vilella Martinez v Rogerio Dutra Silva | 1-6,3-6 |
| Challenger Monterrey | 2018/10/02 19:20 | Sebastian Ofner v Mario Vilella Martinez | 6-1,6-2 |
| Challenger Szczecin | 2018/09/13 11:00 | Mario Vilella Martinez v Guido Andreozzi | 4-6,3-6 |