| Women NWSL Challenge Cup 2021 - Appearances as Referee |  |
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 |
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| 16/04/2021 | Chicago Red Stars | - | Portland Thorns | 0:1 | 2 | - | - |
| 28/04/2021 | Washington Spirit | - | NJ/NY Gotham FC | 0:0 | 1 | - | - |
| 04/05/2021 | Kansas City NWSL | - | OL Reign | 1:2 | 3 | - | - |
| Women NWSL Challenge Cup 2021 - Appearances as Referee | |
|
|
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| 16/04/2021 | Chicago Red Stars | - | Portland Thorns | 0:1 | 2 | - | - |
| 28/04/2021 | Washington Spirit | - | NJ/NY Gotham FC | 0:0 | 1 | - | - |
| 04/05/2021 | Kansas City NWSL | - | OL Reign | 1:2 | 3 | - | - |
| Complete name: | Karen Callado |
| Born: | |
| Place of birth: |
USA |
| Nationality: |
USA |