| 2. Round | 16/05/2021 | New Mexico United | - | Austin Bold | 3:1 | ||||
| 2. Round | 22/05/2021 | Real Monarchs SLC | - | Austin Bold | 1:1 | ||||
| 2. Round | 27/05/2021 | Austin Bold | - | Real Monarchs SLC | 2:0 | ||||
| 3. Round | 04/06/2021 | Austin Bold | - | El Paso Locomotive | 0:1 |  |
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| 3. Round | 06/06/2021 | Pittsburgh Riverhounds | - | Austin Bold | 0:1 | ||||
| 3. Round | 17/06/2021 | Rio Grande Valley FC | - | Austin Bold | 1:2 | ||||
| 3. Round | 23/06/2021 | Austin Bold | - | Colorado Springs Switchbacks | 2:3 | ||||
| 3. Round | 27/06/2021 | Oakland Roots | - | Austin Bold | 0:0 | |
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| 4. Round | 04/07/2021 | San Antonio FC | - | Austin Bold | 0:1 | ||||
| 4. Round | 08/07/2021 | Austin Bold | - | Rio Grande Valley FC | 1:1 | ||||
| 4. Round | 25/07/2021 | Rio Grande Valley FC | - | Austin Bold | 1:1 | ||||
| 4. Round | 01/08/2021 | Austin Bold | - | San Antonio FC | 0:3 | |
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| 5. Round | 05/08/2021 | Austin Bold | - | Colorado Springs Switchbacks | 2:1 | ||||
| 5. Round | 08/08/2021 | El Paso Locomotive | - | Austin Bold | 3:0 | ||||
| 5. Round | 15/08/2021 | Austin Bold | - | Miami FC | 0:0 | ||||
| 5. Round | 18/08/2021 | Austin Bold | - | Rio Grande Valley FC | 1:1 | ||||
| 5. Round | 24/08/2021 | Austin Bold | - | New Mexico United | 1:1 |
USA