4. Round | 17/06/2018 | OKC Energy FC | - | Rio Grande Valley FC | 3:1 | ||||
5. Round | 15/07/2018 | Rio Grande Valley FC | - | Las Vegas Lights FC | 2:0 | ||||
6. Round | 26/08/2018 | Orange County SC | - | Rio Grande Valley FC | 0:2 | ||||
7. Round | 27/09/2018 | Reno 1868 FC | - | Rio Grande Valley FC | 4:0 |