| Copa Libertadores 1968 - Appearances as Referee |  |
 |
 |
||||
| 24/01/1968 | Always Ready | - | Universitario de Deportes | 0:3 | - | - | - |
| 21/02/1968 | Guaraní | - | Nacional | 2:1 | - | - | 1 |
| Copa Libertadores 1968 - Appearances as Referee | |
|
|
||||
| 24/01/1968 | Always Ready | - | Universitario de Deportes | 0:3 | - | - | - |
| 21/02/1968 | Guaraní | - | Nacional | 2:1 | - | - | 1 |
| Complete name: | Olten Ayres de Abreu |
| Born: | |
| Place of birth: |
Brazil |
| Nationality: |
Brazil |