| 4. Round | 24/06/2018 | Orange County SC | - | Tulsa Roughnecks | 6:1 |  |
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| 5. Round | 08/07/2018 | Orange County SC | - | Los Angeles Galaxy II | 0:3 | ||||
| 5. Round | 15/07/2018 | Orange County SC | - | San Antonio FC | 3:0 |  |
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| 5. Round | 19/07/2018 | Swope Park Rangers | - | Orange County SC | 0:4 | ||||
| 5. Round | 22/07/2018 | Saint Louis FC | - | Orange County SC | 2:2 |
USA