| Challenger Guayaquil DM | 2018/11/03 01:00 | Monteiro/Neis v Cuevas/Cuevas | 6-3,6-4 |
| Challenger Guayaquil DM | 2018/10/31 00:45 | Bagnis/Galdos v Cuevas/Cuevas | 4-6,3-6 |
| Challenger Lima DM | 2018/10/25 00:30 | Sousa/Vervoort v Cuevas/Cuevas | 7-5,1-6,12-10 |
| Challenger Lima DM | 2018/10/22 18:40 | Bagnis/Galdos v Cuevas/Cuevas | 4-6,4-6 |
| Challenger Braunschweig DM | 2018/07/11 14:30 | Gonzalez/Koolhof v Cuevas/Cuevas | 7-6,6-1 |
| Challenger Braunschweig DM | 2018/07/09 16:00 | Cuevas/Cuevas v Moeller/Molleker | 6-4,7-5 |
| Challenger Caltanissetta DM | 2018/06/15 16:05 | Cuevas/Cuevas v Gaio/Pellegrino | 2-6,6-7 |
| Challenger Caltanissetta DM | 2018/06/14 13:20 | Arevalo/Reyes-Varela v Cuevas/Cuevas | 3-6,6-3,5-10 |