Gustavo Mendez - Football referee
| Copa Libertadores 2005 | ||||
| 1/2 finals | Sao Paulo | River Plate | 2005-06-22 | 2 - 0 |
| 1st knockout | Tigres | Once Caldas | 2005-05-26 | 2 - 1 |
| group stage | The Strongest | Sao Paulo | 2005-03-03 | 3 - 3 |
| group stage | Universidad de Chile | Quilmes | 2005-02-22 | 3 - 2 |
| Copa America 2004 | ||||
| 1/4 finals | Colombia | Costa Rica | 2004-06-17 | 2 - 0 |
| group stage | Paraguay | Chile | 2004-06-11 | 1 - 1 |
| Copa Libertadores 2004 | ||||
| final | Boca Juniors | Once Caldas | 2004-06-23 | 0 - 0 |
| 1st knockout | Santos Laguna | River Plate | 2004-05-04 | 0 - 1 |
| group stage | Olimpia Asuncion | Coritiba FC | 2004-04-06 | 1 - 1 |
| group stage | Deportes Tolima | River Plate | 2004-03-11 | 2 - 3 |
| group stage | Rosario Central | Coritiba FC | 2004-03-04 | 2 - 0 |
| Copa Sudamericana u23 2004 | ||||
| final stage | Brazil OT | Paraguay OT | 2004-01-25 | 0 - 1 |
| final stage | Chile OT | Paraguay OT | 2004-01-21 | 1 - 2 |
| play-offs | Brazil OT | Colombia OT | 2004-01-18 | 3 - 0 |
| group stage | Ecuador OT | Bolivia OT | 2004-01-14 | 3 - 2 |
| group stage | Colombia OT | Peru OT | 2004-01-10 | 3 - 1 |
| Copa Sudamericana 2003 | ||||
| final | Cienciano | River Plate | 2003-12-19 | 1 - 0 |
| WC 2006 qualifiers - S. America | ||||
| Argentina | Brazil | 2005-06-08 | 3 - 1 | |
| Ecuador | Paraguay | 2005-03-27 | 5 - 2 | |
| Paraguay | Venezuela | 2004-09-05 | 1 - 0 | |
| Chile | Paraguay | 2003-11-18 | 0 - 1 | |
| Copa Libertadores 2003 | ||||
| 1/4 finals | América de Cali | River Plate | 2003-05-27 | 4 - 1 |
| 1st knockout | Cobreloa | Pumas UNAM | 2003-05-08 | 0 - 0 |
| group stage | Gimnasia La Plata | Olimpia Asuncion | 2003-03-04 | 1 - 1 |
| group stage | Cerro Porteno | Universidad Católica | 2003-02-06 | 3 - 2 |
| WC 2002 qualifiers - Am/Caribbean | ||||
| final round | Trinidad and Tobago | Jamaica | 2001-06-30 | 1 - 2 |
| Copa Libertadores 2001 | ||||
| 1/4 finals | Vasco da Gama | Boca Juniors | 2001-05-23 | 0 - 1 |
| 1st knockout | Cruzeiro | El Nacional | 2001-05-15 | 4 - 1 |
| group stage | The Strongest | El Nacional | 2001-05-03 | 2 - 1 |
| group stage | Rosario Central | Junior Barranquilla | 2001-04-04 | 1 - 0 |
| group stage | Vélez Sarsfield | Junior Barranquilla | 2001-02-22 | 2 - 0 |
| Copa Mercosur 2000 | ||||
| group stage | Sao Paulo | Cerro Porteno | 2000-10-19 | 4 - 4 |
| group stage | Corinthians | Boca Juniors | 2000-09-19 | 2 - 2 |
| group stage | Flamengo | River Plate | 2000-08-22 | 1 - 2 |
| group stage | Cruzeiro | Independiente | 2000-08-08 | 3 - 0 |
| Copa Libertadores 2000 | ||||
| final | Boca Juniors | Palmeiras | 2000-06-14 | 2 - 2 |
| 1/4 finals | Palmeiras | Atlas | 2000-05-25 | 3 - 2 |
| 1st knockout | Boca Juniors | El Nacional | 2000-05-09 | 5 - 3 |
| group stage | América | Olimpia Asuncion | 2000-04-12 | 8 - 2 |
| group stage | Olimpia Asuncion | Corinthians | 2000-03-14 | 2 - 2 |
| WC 2002 qualifiers - S. America | ||||
| Brazil | Argentina | 2000-07-26 | 3 - 1 | |
| Colombia | Brazil | 2000-02-28 | 0 - 0 | |
| Gold Cup 2000 | ||||
| 1/2 finals | Trinidad and Tobago | Canada | 2000-02-24 | 0 - 1 |
| group stage | Mexico | Guatemala | 2000-02-17 | 1 - 1 |
| Copa Mercosur 1999 | ||||
| 1/2 finals | Palmeiras | San Lorenzo | 1999-12-07 | 3 - 1 |
| 1/4 finals | San Lorenzo | Corinthians | 1999-10-21 | 2 - 1 |
| group stage | Flamengo | Colo-Colo | 1999-09-21 | 2 - 2 |
| group stage | Vélez Sarsfield | Gremio | 1999-07-28 | 1 - 1 |
| Copa America 1999 | ||||
| 1/4 finals | Brazil | Argentina | 1999-07-11 | 2 - 1 |
| 1st stage | Brazil | Mexico | 1999-07-03 | 2 - 1 |
| WC 1999 u20 | ||||
| group stage | Australia u20 | Ireland u20 | 1999-04-10 | 0 - 4 |
| group stage | Saudi Arabia u20 | Ireland u20 | 1999-04-07 | 0 - 2 |
| group stage | Australia u20 | Saudi Arabia u20 | 1999-04-04 | 3 - 1 |
| Copa Libertadores 1999 | ||||
| 1/2 finals | Palmeiras | River Plate | 1999-05-26 | 3 - 0 |
| group stage | Colo-Colo | Universitario | 1999-03-24 | 1 - 0 |
| Copa Mercosur 1998 | ||||
| 1/4 finals | Boca Juniors | Palmeiras | 1998-11-04 | 1 - 1 |
| 1/4 finals | River Plate | Cruzeiro | 1998-10-28 | 1 - 2 |
| group stage | Colo-Colo | San Lorenzo | 1998-10-01 | 1 - 1 |
| group stage | Flamengo | Boca Juniors | 1998-09-02 | 0 - 2 |
| friendly | ||||
| Argentina | South Africa | 1998-05-25 | 2 - 0 | |
| Copa Libertadores 1998 | ||||
| final (1st leg) | Vasco da Gama | Barcelona SC (ecu) | 1998-08-12 | 2 - 0 |
| 1/2 finals | Vasco da Gama | River Plate | 1998-07-16 | 1 - 0 |
| 1/8 finals | América | River Plate | 1998-04-22 | 1 - 1 |
| group stage | Cerro Porteno | Universidad Católica | 1998-03-03 | 0 - 0 |
| Super Cup "João Havelange" 1997 | ||||
| group stage | Vélez Sarsfield | Flamengo | 1997-10-28 | 0 - 3 |
| Copa CONMEBOL 1997 | ||||
| 1/4 finals | Atlético Mineiro | América de Cali | 1997-10-15 | 1 - 1 |
| 1st knockout | Vitoria | Sportivo Luqueño | 1997-08-27 | 2 - 0 |
| Copa Libertadores 1997 | ||||
| 1/8 finals | Gremio | Guaranà | 1997-05-06 | 2 - 1 |
| Copa Sudamericana u17 1997 | ||||
| final stage | Argentina u17 | Chile u17 | 1997-03-11 | 3 - 0 |
| group stage | Argentina u17 | Peru u17 | 1997-03-06 | 2 - 0 |
| group stage | Paraguay u17 | Ecuador u17 | 1997-03-02 | 1 - 2 |
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