| 2. Round | 30/05/2021 | San Diego Loyal | - | Las Vegas Lights FC | 2:1 | ||||
| 3. Round | 06/06/2021 | Phoenix Rising | - | San Diego Loyal | 2:2 |  |
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| 3. Round | 10/06/2021 | Orange County SC | - | San Diego Loyal | 1:1 | ||||
| 3. Round | 13/06/2021 | San Diego Loyal | - | Los Angeles Galaxy II | 2:1 | |
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| 3. Round | 20/06/2021 | San Diego Loyal | - | Phoenix Rising | 2:1 | ||||
| 3. Round | 26/06/2021 | Las Vegas Lights FC | - | San Diego Loyal | 1:2 | |
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| 3. Round | 30/06/2021 | San Diego Loyal | - | Oakland Roots | 1:0 |
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USA