| Copa Libertadores 1974 - Appearances as Referee |  |
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 |
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| 15/02/1974 | Nacional | - | Cerro Porteño | 1:2 | - | - | - |
| 02/03/1974 | Cerro Porteño | - | Nacional | 2:2 | - | - | - |
| 19/03/1974 | Unión Española | - | Rosario Central | 0:1 | - | - | - |
| Copa Libertadores 1974 - Appearances as Referee | |
|
|
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| 15/02/1974 | Nacional | - | Cerro Porteño | 1:2 | - | - | - |
| 02/03/1974 | Cerro Porteño | - | Nacional | 2:2 | - | - | - |
| 19/03/1974 | Unión Española | - | Rosario Central | 0:1 | - | - | - |
| Complete name: | Romualdo Arppi Filho |
| Born: | 07/01/1939 |
| Place of birth: |
Santos, São Paulo, 
Brazil |
| Nationality: |
Brazil |