| Final | time | | 1. Hector Dominguez | ARG | 2:46.9 | | 2. Manuel Sanguily | CUB | 2:47.3 | | 3. Walter Ocampo | MEX | 2:50.7 | | 4. Nelson Ferreira | BRA | 2:55.3 | | 5. Jose Hernadez | MEX | 2:55.6 | | 6. Carlos Becellar | BRA | 3:02.6 | | 7. Richard Fadgen | USA | 3:13.5 |
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| Heat 1 | time | Rk. | | 1. Hector Dominguez | ARG | 2:47.4 | | 2. Manuel Sanguily | CUB | 2:48.3 | | 3. Walter Ocampo | MEX | 2:51.6 | | 4. Nelson Ferreira | BRA | 2:56.6 | | 5. Armando Garcia | MEX | 3:07.2 | | 6. Fred McGuire | USA | 3:08.6 | | 7. Fulvio Vivas | COL | 3:12.3 |
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| Heat 2 | time | Rk. | | 5. Jose Hernadez | MEX | 2:55.6 | | 6. Carlos Becellar | BRA | 3:02.6 | | 7. Richard Fadgen | USA | 3:13.5 |
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