| 3. Round | 24/06/2021 | Los Angeles Galaxy II | - | Orange County SC | 1:1 | ||||
| 4. Round | 02/07/2021 | Colorado Springs Switchbacks | - | Orange County SC | 0:2 | ||||
| 4. Round | 07/07/2021 | Orange County SC | - | Tacoma Defiance | 0:0 | ||||
| 4. Round | 11/07/2021 | Sacramento Republic | - | Orange County SC | 0:2 |  |
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| 4. Round | 15/07/2021 | San Diego Loyal | - | Orange County SC | 2:1 | ||||
| 4. Round | 18/07/2021 | Orange County SC | - | Rio Grande Valley FC | 0:2 | |
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| 4. Round | 01/08/2021 | Oakland Roots | - | Orange County SC | 0:3 | ||||
| 5. Round | 08/08/2021 | Orange County SC | - | Los Angeles Galaxy II | 2:3 |
USA