| Copa Libertadores 1988 - Appearances as Referee |  |
 |
 |
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| 10/08/1988 | Colo-Colo | - | Universidad Católica | 2:2 | - | - | - |
| 18/08/1988 | Cerro Porteño | - | Bolívar | 3:2 | - | - | 1 |
| Copa Libertadores 1988 - Appearances as Referee | |
|
|
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| 10/08/1988 | Colo-Colo | - | Universidad Católica | 2:2 | - | - | - |
| 18/08/1988 | Cerro Porteño | - | Bolívar | 3:2 | - | - | 1 |
| Complete name: | Gastón Edmundo Castro Makuc |
| Born: | 23/08/1948 |
| Place of birth: |
Chile |
| Nationality: |
Chile |