Stadium: I Round: 27 Ground: Hardcourt outdoor
| Challenger Chicago MD | 2018/09/04 17:25 | Arevalo/Maytin v Verdugo/Siljestrom | 6-7,7-6,11-9 |
| Challenger San Francisco MD | 2018/02/11 22:00 | Arevalo/Maytin v Bambridge/Salisbury | 6-3,6-7,10-7 |
| Challenger San Francisco MD | 2018/02/10 23:00 | Behar/Gonzalez v Arevalo/Maytin | 1-6,6-7 |
| Challenger Chicago MD | 2018/09/04 21:15 | Fratangelo/Paul v Gonzales/Lammons | 3-6,6-7 |
| Challenger Portoroz MD | 2018/08/08 20:55 | Gonzales/Lammons v Cacic/Miedler | 3-6,5-7 |
| Challenger Portoroz MD | 2018/08/07 21:00 | Gonzales/Lammons v Celikbilek/Ilkel | 7-5,6-3 |
| Challenger Sopot MD | 2018/08/05 11:00 | Kowalczyk/Walkow v Gonzales/Lammons | 7-6,6-3 |
| Challenger Sopot MD | 2018/08/02 09:00 | Drzewiecki/Zuk v Gonzales/Lammons | 3-6,1-6 |
| Challenger Sopot MD | 2018/07/31 16:30 | Cachin/Olivo v Gonzales/Lammons | 4-6,2-6 |
| Challenger Tampere MD | 2018/07/27 16:35 | Gonzales/Lammons v Eriksson/Goransson | 3-6,4-6 |
| Challenger Tampere MD | 2018/07/26 12:10 | Gonzales/Lammons v Benchetrit/Blancaneaux | 6-4,4-6,10-5 |