| 48kg | | 1. Rafael Ramos | PUR | | 2. Paul Gonzalez | USA | | 3. Hector Díaz | DOM | | 3. Manuel dos Santos | BRA |
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| 51kg | | 1. Pedro Reyes | CUB | | 2. Laureano Ramírez | DOM | | 3. Steve McCrory | USA | | 3. Jesús Pol | VEN |
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| 54kg | | 1. Manuel Vilchez | VEN | | 2. Pedro Nolasco | DOM | | 3. Floyd Favors | USA | | 3. Robinson Pitalua | COL |
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| 57kg | | 1. Adolfo Horta | CUB | | 2. Santos Cardona | PUR | | 3. Bernard Gray | USA | | 3. Rafael Zuñiga | COL |
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| 60kg | | 1. Pernell Whitaker | USA | | 2. Ángel Herrera | CUB | | 3. Ángel Beltres | DOM | | 3. Alberto Cortez | ARG |
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| 63.5kg | | 1. Candelario Duvergel | CUB | | 2. Jerry Page | USA | | 3. Genaro León | MEX | | 3. Giovanni López | DOM |
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| 67kg | | 1. Louis Howard | USA | | 2. José Aguilar | CUB | | 3. Luis García | VEN | | 3. Antonio Madureira | BRA |
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| 1/4 21.08 | | Louis Howard | USA | 2:29 | Alejandro Garcia | MEX | | José Aguilar | CUB | dns | Anibal Miranda | COL | | Luis García | VEN | bt | Wayne Gordon | CAN | | Antonio Madureira | BRA | bt | Antonio Mancilli | ARG |
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| 71kg | | 1. Orestes Solano | CUB | | 2. Dennis Milton | USA | | 3. Dario Matteoni | ARG | | 3. Héctor Ortiz | PUR |
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| 75kg | | 1. Bernardo Comas | CUB | | 2. Alfredo Delgado | PUR | | 3. Pedro Gamarro | VEN |
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| 81kg | | 1. Pablo Romero | CUB | | 2. Evander Holyfield | USA | | 3. Miguel Mosna | ARG | | 3. Carlos Salazar | VEN |
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| 1/4 21.08 | | Pablo Romero | CUB | | Evander Holyfield | USA | bt | Adolfo Morin | PUR | | Miguel Mosna | ARG | 1:53 | Alfred Thomas | GUY | | Carlos Salazar | VEN | bt | Danny Lindstroem | CAN |
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| 91kg | | 1. Aurelio Toyo | CUB | | 2. Henry Tillman | USA | | 3. Virgilio Frias | DOM | | 3. Alex Stewart | JAM |
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| 1/4 21.08 | | Aurelio Toyo | CUB | 1:50 | Luis Castillo | ECU | | Alex Stewart | JAM | 1:02 | Jorge Dascola | ARG |
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| Over 91kg | | 1. Jorge González | CUB | | 2. Eloy Loaiza | VEN | | 3. Tyrell Biggs | USA |
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