| Women NWSL Challenge Cup 2021 - Appearances as Referee |  |
 |
 |
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| 22/04/2021 | Portland Thorns | - | OL Reign | 2:0 | 2 | - | - |
| 02/05/2021 | NJ/NY Gotham FC | - | Racing Louisville | 0:0 | 1 | - | - |
| Women NWSL Challenge Cup 2021 - Appearances as Referee | |
|
|
||||
| 22/04/2021 | Portland Thorns | - | OL Reign | 2:0 | 2 | - | - |
| 02/05/2021 | NJ/NY Gotham FC | - | Racing Louisville | 0:0 | 1 | - | - |
| Complete name: | Karen Abt |
| Born: | |
| Place of birth: |
USA |
| Nationality: |
USA |