| Copa Libertadores 2000 - Appearances as Referee |  |
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 |
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| 13/03/2000 | CF América | - | LDU Quito | 1:0 | 3 | - | - |
| 17/04/2000 | Bella Vista | - | Atlético Mineiro | 1:0 | - | - | - |
| 24/05/2000 | Bolívar | - | CF América | 1:2 | 2 | - | - |
| Copa Libertadores 2000 - Appearances as Referee | |
|
|
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| 13/03/2000 | CF América | - | LDU Quito | 1:0 | 3 | - | - |
| 17/04/2000 | Bella Vista | - | Atlético Mineiro | 1:0 | - | - | - |
| 24/05/2000 | Bolívar | - | CF América | 1:2 | 2 | - | - |
| Complete name: | Guido Augustin Aros Alvarado |
| Born: | 23/11/1965 |
| Place of birth: |
Chile |
| Nationality: |
Chile |