Wenceslao Zarate - Football referee
| Copa Libertadores 1970 | ||||
| group stage | Olimpia Asuncion | Guaranà | 1970-03-12 | 0 - 0 |
| group stage | Guaranà | Olimpia Asuncion | 1970-02-11 | 1 - 0 |
| Copa Libertadores 1969 | ||||
| group stage | Nacional (UR) | Barcelona SC (ecu) | 1969-03-13 | 2 - 0 |
| group stage | Olimpia Asuncion | Cerro Porteno | 1969-02-23 | 1 - 2 |
| Copa Libertadores 1968 | ||||
| 1/4 finals | Independiente | Universitario | 1968-04-11 | 3 - 0 |
| group stage | Nautico | Deportivo Portugues | 1968-02-14 | 3 - 2 |
| Copa Libertadores 1967 | ||||
| 1/2 final stage | Cruzeiro | Nacional (UR) | 1967-06-14 | 2 - 1 |
| group stage | River Plate | Santa Fe | 1967-04-18 | 4 - 0 |
| group stage | 31 de Octubre | Racing Club | 1967-03-15 | 3 - 0 |
| Copa Libertadores 1966 | ||||
| play-off | Guaranà | Olimpia Asuncion | 1966-03-23 | 2 - 1 |
| group stage | River Plate | Deportivo Italia | 1966-03-10 | 2 - 1 |
| group stage | Boca Juniors | Deportivo Italia | 1966-03-08 | 5 - 2 |
| group stage | Boca Juniors | Deportivo Lara | 1966-03-02 | 2 - 1 |
| group stage | Deportivo Lara | Boca Juniors | 1966-02-25 | 0 - 3 |
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