1. Round | 17/03/2018 | Rio Grande Valley FC | - | Saint Louis FC | 1:1 | ||||
1. Round | 01/04/2018 | Rio Grande Valley FC | - | Sacramento Republic | 2:2 | ||||
2. Round | 08/04/2018 | Colorado Springs Switchbacks | - | Rio Grande Valley FC | 2:1 | ||||
2. Round | 15/04/2018 | Seattle Sounders 2 | - | Rio Grande Valley FC | 3:2 | ||||
2. Round | 19/04/2018 | Portland Timbers 2 | - | Rio Grande Valley FC | 3:2 |