| Copa Libertadores 1977 - Appearances as Referee |  |
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 |
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| 30/04/1977 | Corinthians SP | - | El Nacional | 3:0 | - | - | - |
| 02/06/1977 | Portuguesa FC | - | Estudiantes de Mérida | 3:0 | - | - | - |
| Copa Libertadores 1977 - Appearances as Referee | |
|
|
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| 30/04/1977 | Corinthians SP | - | El Nacional | 3:0 | - | - | - |
| 02/06/1977 | Portuguesa FC | - | Estudiantes de Mérida | 3:0 | - | - | - |
| Complete name: | Mario Fiorenza |
| Born: | |
| Place of birth: |
Venezuela |
| Nationality: |
Venezuela |