Stadium: Cancha 2 Round: 26 Ground: Clay
| Challenger Monterrey MD | 2018/10/02 00:50 | Behar/Quiroz v Melzer/Melzer | 6-4,4-6,11-9 |
| Challenger Monterrey MD | 2018/10/05 22:00 | Arevalo/Nedun'yan v Begemann/Polasek | 6-3,7-6 |
| Challenger Monterrey MD | 2018/10/05 00:45 | Begemann/Polasek v Granollers/Granollers | 6-4,3-6,10-3 |
| Challenger Monterrey MD | 2018/10/02 22:10 | Begemann/Polasek v Escobar/Galdos | 6-3,7-5 |