| Major League Soccer 2023 - Appearances as Referee |  |
 |
 |
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| 31/08/2023 | Chicago Fire | - | Vancouver Whitecaps | 0:1 | 1 | - | - |
| 08/10/2023 | New York RB | - | Toronto FC | 3:0 | - | - | - |
| Major League Soccer 2023 - Appearances as Referee | |
|
|
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| 31/08/2023 | Chicago Fire | - | Vancouver Whitecaps | 0:1 | 1 | - | - |
| 08/10/2023 | New York RB | - | Toronto FC | 3:0 | - | - | - |
| Complete name: | Ricardo Fierro |
| Born: | |
| Place of birth: |
USA |
| Nationality: |
USA |