Men's competition
Flyweight
- –52 kg (1971–1991)
- –54 kg (1995)
| Games | Gold | Silver | Bronze |
|---|---|---|---|
| 1971 (Press) |  Roberto Lindeborg (AHO) |  Chun Hon Chan (CAN) |  A. Garcia (PUR) |
| 1971 (Snatch) | Chun Hon Chan (CAN) |  Juan Romero (COL) | Lester Francel (COL) |
| 1971 (Clean & jerk) | Juan Romero (COL) | Lester Francel (COL) | Roberto Lindeborg (AHO) |
| 1971 (Total) | Juan Romero (COL) | Roberto Lindeborg (AHO) | Chun Hon Chan (CAN) |
| 1975 |  Francisco Casamayor (CUB) |  Narcisco Orán (PAN) |  Lázaro de la Cruz (DOM) |
| 1979 | Francisco Casamayor (CUB) | José Díaz (PAN) |  Samuel Alexis Vázquez (VEN) |
| 1983 | Juan Hernández (CUB) | Humberto Fuentes (VEN) | Ader Rincones (VEN) |
| 1987 | Juan Hernández (CUB) | Humberto Fuentes (VEN) | Jose Farfán (VEN) |
| 1991 | Héctor Arzola (CUB) | Humberto Fuentes (VEN) |  Orlando Vásquez (NIC) |
| 1995 | Jesús Aparicio (CUB) | Juan Carlos Fernández (COL) | Orlando Vásquez (NIC) |
Bantamweight
- –56 kg (1951–1967)
- 52–56 kg (1971–1991)
- 54–59 kg (1995)
- –56 kg (1999–2015)
- –61 kg (2019–)
Featherweight
- 56–60 kg (1951–1991)
- 59–64 kg (1995)
- 56–62 kg (1999–2015)
- 61–67 kg (2019–)
Lightweight
- 60–67.5 kg (1951–1991)
- 64–70 kg (1995)
- 62–69 kg (1999–2015)
- 67–73 kg (2019–)
Middleweight
- 67.5–75 kg (1951–1991)
- 70–76 kg (1995)
- 69–77 kg (1999–2015)
- 73–81 kg (2019–)
Light-heavyweight
- 75–82.5 kg (1951–1991)
- 76–83 kg (1995)
- 77–85 kg (1999–2015)
Middle-heavyweight
- 82.5 kg–90 kg (1955–1991)
- 83–91 kg (1995)
- 85–94 kg (1999–2015)
- 81–96 kg (2019–)
First-heavyweight
- 90–100 kg (1979–1991)
- 91–99 kg (1995)
| Games | Gold | Silver | Bronze |
|---|---|---|---|
| 1979 | Alberto Blanco (CUB) |  Guy Carlton (USA) |  Jacques Oliger (CHI) |
| 1983 | Michael Davis (USA) | José Miguel Guzman (DOM) | |
| 1987 | Denis Garon (CAN) | Ken Clark (USA) | Brett Brian (USA) |
| 1991 | Omar Semanat (CUB) | Wes Barnett (USA) |  Edmilson Silva (BRA) |
| 1995 | Alexander Fonseca (CUB) |  Claudio Henschke (ARG) | Peter Kelley (USA) |
Heavyweight
- +90 kg (1951–1967)
- 90–110 kg (1971–1975)
- 100–110 kg (1979–1991)
- 99–108 kg (1995)
- 94–105 kg (1999–2015)
- 96–109 kg (2019–)
Super heavyweight
- +110 kg (1971–1991)
- +108 kg (1995)
- +105 kg (1999–2015)
- +109 kg (2019–)
