36.Latin American Championships - Sao Paulo, Brazil - May 2-9 1981
Quarter-Finals (incomplete)
| 1981-05-02 | 48kg | Arturo Tovar | MEX | Alexis Goyo | VEN | ??? |
| 1981-05-02 | 51kg | Agustin Macias | MEX | Ramon Cufre | ARG | ??? |
| 1981-05-02 | 51kg | William Cova | VEN | Oppe Pinto | PAR | ??? |
| 1981-05-02 | 54kg | Gilberto Roman | MEX | Edgar Acevedo | COL | ??? |
| 1981-05-?? | 54kg | Joao Cardoso | BRA | Sixto Gutierrez | PAR | PTS |
| 1981-05-?? | 57kg | Sydney Dal Rovere | BRA | Humberto Chavez | ARG | PTS |
| 1981-05-03 | 60kg | Francisco Tomas | BRA | Roberto De Fix | ARG | PTS |
| 1981-05-03 | 60kg | Carlos Gonzalez | MEX | Sandalio Calderon | COL | RSC 1 |
| 1981-05-03 | 63,5kg | Genaro Leon | MEX | Cruz Diaz | VEN | RSC 2 |
| 1981-05-03 | 63,5kg | Jaime Sodre da Franca | BRA | Domingo Guzman | PAR | AB 2 |
| 1981-05-03 | 67kg | Antonio Guerra | VEN | Elmer Garcia | COL | RSC 2 |
| 1981-05-03 | 71kg | Guillermo Echenique | VEN | Perfecto Galeano | PAR | PTS |
| 1981-05-03 | 71kg | Manuel Murillo | COL | Jorge Valentinuzzi | ARG | PTS |
| 1981-05-03 | 75kg | Basante Blanco | VEN | Jorge Pastor | ARG | RSC 3 |
| 1981-05-03 | 75kg | Carlos Antunes | BRA | Juan Carlos Gimenez | PAR | 3:2 |
Semi-Finals
| 1981-05-05 | 48kg | Juan Villalba | COL | Daniel Ayala | PAR | ??? |
| 1981-05-?? | 48kg | Jose Lagos | ARG | Arturo Tovar | MEX | ??? |
| 1981-05-05 | 51kg | Claudemir Carvalho Dias | BRA | Juan Polo Perez | COL | ??? |
| 1981-05-?? | 51kg | William Cova | VEN | Agustin Macias | MEX | ??? |
| 1981-05-05 | 54kg | Oscar Flores | ARG | Jesus Varela | VEN | ??? |
| 1981-05-?? | 54kg | Gilberto Roman | MEX | Joao Cardoso | BRA | ??? |
| 1981-05-05 | 57kg | Edgar Castro | VEN | Justo Ibelles | MEX | ??? |
| 1981-05-?? | 57kg | Sydney Dal Rovere | BRA | ??? | ??? | ??? |
| 1981-05-?? | 60kg | Carlos Gonzalez | MEX | Francisco Tomas | BRA | ??? |
| 1981-05-05 | 60kg | Luis Garcia | VEN | Apolonio Vera | PAR | ??? |
| 1981-05-05 | 63,5kg | Eduardo Benevent | ARG | Luis Ninco | COL | ??? |
| 1981-05-?? | 63,5kg | Genaro Leon | MEX | Jaime Sodre da Franca | BRA | ??? |
| 1981-05-06 | 67kg | Abel Arnau | ARG | Antonio Cunha | BRA | ??? |
| 1981-05-06 | 67kg | Antonio Guerra | VEN | Mauro Veronica | MEX | ??? |
| 1981-05-06 | 71kg | Fernando Santos | BRA | Mario Pelaez | MEX | ??? |
| 1981-05-?? | 71kg | Manuel Murillo | COL | Guillermo Echenique | VEN | ??? |
| 1981-05-?? | 75kg | Carlos Antunes | BRA | Basante Blanco | VEN | ??? |
| 1981-05-06 | 75kg | Jairo Tovar | COL | Francisco Castillo | MEX | ??? |
| 1981-05-06 | 81kg | Simon Ramirez | ARG | Guillermo Henriquez | VEN | ??? |
| 1981-05-06 | 81kg | Jose De Lima | BRA | Cristo Cuba | PAR | ??? |
| 1981-05-06 | 91kg | Hector Rohr | ARG | Ismael Vargas | VEN | ??? |
| 1981-05-06 | 91kg | Fernando Martins | BRA | Mauricio Villegas | MEX | ??? |
| 1981-05-06 | +91kg | Daniel Walter Falconi | ARG | Eduardo Santos | BRA | ??? |
Finals
| 1981-05-08 | 48kg | Juan Villalba | COL | Jose Lago | ARG | PTS |
| 1981-05-08 | 51kg | Claudemir Carvalho Dias | BRA | William Cova | VEN | PTS |
| 1981-05-08 | 54kg | Gilberto Roman | MEX | Oscar Flores | ARG | PTS |
| 1981-05-08 | 57kg | Edgar Castro | VEN | Sydney Dal Rovere | BRA | PTS |
| 1981-05-08 | 60kg | Carlos Gonzales | MEX | Luis Garcia | VEN | PTS |
| 1981-05-08 | 63,5kg | Genaro Leon | MEX | Eduardo Benevent | ARG | RSC 2 |
| 1981-05-08 | 67kg | Antonio Guerra | VEN | Abel Arnau | ARG | PTS |
| 1981-05-08 | 71kg | Fernando Santos | BRA | Manuel Murillo | COL | PTS |
| 1981-05-08 | 75kg | Carlos Antunes | BRA | Jairo Tovar | COL | KO 1 |
| 1981-05-08 | 81kg | Simon Ramirez | ARG | Jose De Lima | BRA | PTS |
| 1981-05-08 | 91kg | Hector Rohr | ARG | Fernando Martins | BRA | 3:2 |
| 1981-05-08 | +91kg | Daniel Walter Falconi | ARG | Eloy Loaiza | VEN | RSC 3 |