| Copa Libertadores 1980 - Appearances as Referee |  |
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| 10/03/1980 | River Plate | - | Sporting Cristal | 3:2 | - | - | 2 |
| 15/04/1980 | O'Higgins | - | Colo-Colo | 1:3 | - | - | - |
| Copa Libertadores 1980 - Appearances as Referee | |
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| 10/03/1980 | River Plate | - | Sporting Cristal | 3:2 | - | - | 2 |
| 15/04/1980 | O'Higgins | - | Colo-Colo | 1:3 | - | - | - |
| Complete name: | Gastón Edmundo Castro Makuc |
| Born: | 23/08/1948 |
| Place of birth: |
Chile |
| Nationality: |
Chile |