Stadium: Cancha 4 Round: 26 Ground: Clay
| Challenger Santo Domingo MD | 2018/10/13 20:30 | Behar/Quiroz v Paes/R-Valera | 6-4,3-6,5-10 |
| Challenger Santo Domingo MD | 2018/10/12 19:00 | Dellien/E Burgos v Behar/Quiroz | 3-6,6-3,3-10 |
| Challenger Santo Domingo MD | 2018/10/11 20:00 | Arevalo/Nedun'yan v Behar/Quiroz | 7-5,4-6,7-10 |
| Challenger Santo Domingo MD | 2018/10/08 21:00 | Dutra Silva/Lorenzi v Behar/Quiroz | 2-6,6-4,5-10 |
| Challenger Monterrey MD | 2018/10/05 02:25 | Paes/R-Valera v Behar/Quiroz | 6-7,6-4,10-5 |
| Challenger Monterrey MD | 2018/10/02 00:50 | Behar/Quiroz v Melzer/Melzer | 6-4,4-6,11-9 |