| Women NWSL Challenge Cup 2023 - Appearances as Referee |  |
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 |
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| 18/05/2023 | Racing Louisville | - | Kansas City Current | 3:2 | 6 | - | - |
| 09/09/2023 | NC Courage | - | Racing Louisville | 2:0 | 2 | - | - |
| Women NWSL Challenge Cup 2023 - Appearances as Referee | |
|
|
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| 18/05/2023 | Racing Louisville | - | Kansas City Current | 3:2 | 6 | - | - |
| 09/09/2023 | NC Courage | - | Racing Louisville | 2:0 | 2 | - | - |
| Complete name: | Alex Billeter |
| Born: | |
| Place of birth: |
USA |
| Nationality: |
USA |