Round: 28 Ground: Clay
| Challenger Tallahassee MD | 2018/04/26 21:25 | Bambridge/O'Mara v Harrison/Polansky | 7-5,6-4 |
| Challenger Tallahassee MD | 2018/04/23 22:00 | Bambridge/O'Mara v Arnaboldi/Siljestrom | 6-3,7-6 |
| Challenger Sarasota MD | 2018/04/20 16:20 | King/Reese v Bambridge/O'Mara | 6-4,7-5 |
| Challenger Sarasota MD | 2018/04/19 14:00 | Nedunchezhiyan/Raja v Bambridge/O'Mara | 5-7,2-6 |
| Challenger Sarasota MD | 2018/04/18 16:05 | Arnaboldi/Chirala v Bambridge/O'Mara | 2-6,1-6 |
| Challenger Mexico City MD | 2018/04/15 17:00 | Bambridge/O'Mara v Hanfmann/Krawietz | 2-6,6-7 |
| Challenger Mexico City MD | 2018/04/13 23:00 | Bagnis/Verdugo v Bambridge/O'Mara | 4-6,6-3,9-11 |
| Challenger Mexico City MD | 2018/04/11 23:35 | Bambridge/O'Mara v Korda/Mejia | 7-6,6-1 |
| Challenger Tallahassee MD | 2018/04/26 20:45 | Lopez-Perez/Nedunchezhiyan v Cuevas/Dellien | 6-3,4-6,10-7 |
| Challenger Tallahassee MD | 2018/04/23 19:30 | Lopez-Perez/Nedunchezhiyan v Crepaldi/Torebko | 6-4,7-6 |