| Copa Libertadores 1990 - Appearances as Referee |  |
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 |
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| 13/03/1990 | Mineros de Guayana | - | Defensor Sporting | 0:0 | - | - | - |
| 03/04/1990 | Emelec | - | Barcelona | 3:1 | - | - | 2 |
| Copa Libertadores 1990 - Appearances as Referee | |
|
|
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| 13/03/1990 | Mineros de Guayana | - | Defensor Sporting | 0:0 | - | - | - |
| 03/04/1990 | Emelec | - | Barcelona | 3:1 | - | - | 2 |
| Complete name: | Nelson Ruales |
| Born: | |
| Place of birth: |
Ecuador |
| Nationality: |
Ecuador |