| Copa Libertadores 1969 - Appearances as Referee |  |
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 |
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| 02/03/1969 | Cerro Porteño | - | Bolívar | 1:1 | - | - | - |
| 15/05/1969 | Nacional | - | Estudiantes | 0:1 | - | - | - |
| Copa Libertadores 1969 - Appearances as Referee | |
|
|
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| 02/03/1969 | Cerro Porteño | - | Bolívar | 1:1 | - | - | - |
| 15/05/1969 | Nacional | - | Estudiantes | 0:1 | - | - | - |
| Complete name: | Domingo Massaro Conley |
| Born: | 28/08/1927 |
| Place of birth: |
Chile |
| Nationality: |
Chile |