Oscar Velazquez Alvarenga - Football referee
| WC 1998 qualifiers - S. America | ||||
| Bolivia | Peru | 1996-09-01 | 0 - 0 | |
| Copa Libertadores 1996 | ||||
| final (1st leg) | América de Cali | River Plate | 1996-06-19 | 1 - 0 |
| 1/2 finals | Gremio | América de Cali | 1996-06-04 | 1 - 0 |
| group stage | Defensor Sporting | Sporting Cristal | 1996-04-17 | 0 - 0 |
| group stage | Cerro Porteno | Olimpia Asuncion | 1996-04-03 | 0 - 0 |
| friendly | ||||
| Argentina | Morocco | 1994-04-20 | 3 - 1 | |
| Copa Libertadores 1994 | ||||
| group stage | Nacional (UR) | Colo-Colo | 1994-04-08 | 2 - 0 |
| group stage | Cruzeiro | Vélez Sarsfield | 1994-03-09 | 1 - 1 |
| WC 1994 qualifiers - S. America | ||||
| Brazil | Bolivia | 1993-08-29 | 6 - 0 | |
| Copa Libertadores 1993 | ||||
| group stage | Cerro Porteno | Olimpia Asuncion | 1993-02-05 | 0 - 0 |
| Copa Libertadores 1967 | ||||
| group stage | Ind. Medellin | Santa Fe | 1967-05-14 | 0 - 4 |
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