| Copa Libertadores 1974 - Appearances as Referee |  |
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 |
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| 13/02/1974 | Atlético Nacional | - | Millonarios | 0:3 | - | - | - |
| 20/02/1974 | Portuguesa FC | - | Atlético Nacional | 0:0 | - | - | 1 |
| 25/09/1974 | Huracán | - | Peñarol | 0:3 | - | - | - |
| Copa Libertadores 1974 - Appearances as Referee | |
|
|
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| 13/02/1974 | Atlético Nacional | - | Millonarios | 0:3 | - | - | - |
| 20/02/1974 | Portuguesa FC | - | Atlético Nacional | 0:0 | - | - | 1 |
| 25/09/1974 | Huracán | - | Peñarol | 0:3 | - | - | - |
| Complete name: | Guillermo Velásquez Elizalde |
| Born: | 00/00/1933 |
| Place of birth: |
Pereira, 
Colombia |
| Nationality: |
Colombia |