8.Bolivarian Games
La Paz, Bolivia
October 23-28, 1977
Semifinals
| 48kg | Donato Caceres | BOL | Fernando Mendez | COL | KO 1 |
| 48kg | Jesus Bastardo | VEN | Walter Monard | ECU | ??? |
| 51kg | ??? | ??? | Javier Brown | COL | ??? |
| 51kg | ??? | ??? | Carlos Calle | BOL | ??? |
| 54kg | ??? | ??? | Richardson Abad | PER | ??? |
| 54kg | ??? | ??? | Nelson Trujillo | VEN | ??? |
| 57kg | ??? | ??? | Rafael Vazquez | BOL | ??? |
| 57kg | ??? | ??? | Marcelo Chuquiriaco | ECU | ??? |
| 60kg | ??? | ??? | Alfredo Rodriguez | BOL | ??? |
| 60kg | ??? | ??? | Jose Winter | ECU | ??? |
| 63,5kg | ??? | ??? | Ramiro Perales | BOL | ??? |
| 63,5kg | ??? | ??? | Nelson Bolano | ECU | ??? |
| 67kg | ??? | ??? | Carlos Burga | PER | ??? |
| 67kg | ??? | ??? | Dario Colina | VEN | ??? |
| 71kg | Jesus Antonio Cabeza | VEN | Italo Angulo | ECU | ??? |
| 71kg | Manuel Saavedra | COL | Luis Lamadrid | PER | KO |
| 75kg | ??? | ??? | Felix Aquino | BOL | ??? |
| 75kg | ??? | ??? | Antonio Marquines | ECU | ??? |
| 81kg | ??? | ??? | David Torres | BOL | ??? |
| 81kg | ??? | ??? | Oscar Rivadeneira | PER | ??? |
| +81kg | ??? | ??? | Luis Castillo | ECU | ??? |
| +81kg | ??? | ??? | Oscar Ludena | PER | ??? |
Finals
| 48kg | Jesus Bastardo | VEN | Donato Caceres | BOL | ??? |
| 51kg | Rafael Orono | VEN | Elmer Gutierrez | PER | ??? |
| 54kg | Alfonso Abata | ECU | David Lima | BOL | ??? |
| 57kg | Victor Torres | PER | Antonio Esperragoza | VEN | ??? |
| 60kg | Huascar Rivas | VEN | Victor Babilonia | COL | ??? |
| 63,5kg | Ildemar Paisan | VEN | Alfredo Estrada | PER | ??? |
| 67kg | Isidro Guarachi | BOL | Miguel Chala | ECU | ??? |
| 71kg | Manuel Saavedra | COL | Jesus Antonio Cabeza | VEN | KO |
| 75kg | Alfredo Lemus | VEN | Pedro Quinones | PER | ??? |
| 81kg | Ernesto Sanchez | VEN | Guido Rosales | ECU | ??? |
| +81kg | Walter Quisbert | BOL | Jose Angel Castro | VEN | ??? |
sources: "El Tiempo" - October 27, 1977 (page 3D) & "El Tiempo" - October 29, 1977 (page 1C)