| 1. Round | 25/03/2018 | Swope Park Rangers | - | Seattle Sounders 2 | 4:2 |  |
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| 2. Round | 05/04/2018 | Swope Park Rangers | - | Colorado Springs Switchbacks | 1:0 | ||||
| 2. Round | 08/04/2018 | San Antonio FC | - | Swope Park Rangers | 1:1 | ||||
| 2. Round | 22/04/2018 | Phoenix Rising | - | Swope Park Rangers | 2:2 | ||||
| 3. Round | 20/05/2018 | Rio Grande Valley FC | - | Swope Park Rangers | 0:0 | ||||
| 3. Round | 26/05/2018 | Swope Park Rangers | - | Phoenix Rising | 1:0 | ||||
| 5. Round | 15/07/2018 | Portland Timbers 2 | - | Swope Park Rangers | 2:1 | ||||
| 6. Round | 05/08/2018 | Orange County SC | - | Swope Park Rangers | 2:1 |
Ecuador
USA