| Copa Libertadores 1998 - Appearances as Referee |  |
 |
 |
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| 03/03/1998 | Deportivo Guadalajara | - | CF América | 0:1 | 5 | 2 | - |
| 18/03/1998 | Sporting Cristal | - | River Plate | 2:3 | - | - | - |
| 29/04/1998 | Colo-Colo | - | Barcelona | 2:2 | 4 | - | - |
| Copa Libertadores 1998 - Appearances as Referee | |
|
|
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| 03/03/1998 | Deportivo Guadalajara | - | CF América | 0:1 | 5 | 2 | - |
| 18/03/1998 | Sporting Cristal | - | River Plate | 2:3 | - | - | - |
| 29/04/1998 | Colo-Colo | - | Barcelona | 2:2 | 4 | - | - |
| Complete name: | Óscar Julián Ruiz Acosta |
| Born: | 01/11/1969 |
| Place of birth: |
Villavicencio, 
Colombia |
| Nationality: |
Colombia |
| Height: | 185 cm |
| Weight: | 83 kg |