| Final | time | | L | _______ | | 1. Brazil | 38.81s | | 3 | | Vicente de Lima, Rafael Ribeiro, Basílio de Moraes Júnior, Sandro Viana | | 2. Canada | 38.87s | | 4 | | Richard Adu-Bobie, Anson Henry, Jared Connaughton, Bryan Barnett | | 3. United States | 38.88s | | 5 | | J-Mee Samuels, Monzavous Edwards, Rubin Williams, Darvis Patton | | 4. Trinidad Tobago | 39.23s | | 6 | | Mikel Thomas, Marc Burns, Emmanuel Callender, Keston Bledman | | 5. Cuba | 39.46s | | 8 | | Wilfredo Martínez, Jenris Vizcaino, Yoan Frías, Dayron Robles | | 6. Netherlands Antilles | 39.83s | | 2 | | Prince Kwidama, Chalton Rafaela, Brian Mariano, Churandy Martina | | 7. Bahamas | 39.91s | | 7 | | Shamar Sands, Troy McIntosh, Adrian Griffith, Jacobi Mitchell | | 8. Saint Kitts and Nevis | 40.20s | | 1 | | Alistair Clarke, Delwayne Delaney, Robert Morton, Kim Collins |
| Heats - First 3 and Best 2 progress. |
| Heat 1. | time | | L | _______ | | 3. United States | 38.93s | | | J-Mee Samuels, Monzavous Edwards, Rubin Williams, Darvis Patton | | 4. Trinidad Tobago | 39.02 | | | Richard Thompson, Marc Burns, Emmanuel Callender, Mikel Thomas | | 5. Netherlands Antilles | 39.41 | | | Prince Kwidama, Chalton Rafaela, Brian Mariano, Churandy Martina | | 6. Cuba | 39.54 | | | Wilfredo Martínez, Yoan Frías, Michael Herrera, Jenris Vizcaino | | 7. Saint Kitts and Nevis | 39.74s | NR | | Alistair Clarke, Delwayne Delaney, Robert Morton, Kim Collins | | 10.Honduras | 41.49s | | | Ronald Bennett, Rolando Palacios, Jonnie Lowe, Kessel Campbell |
| Heat 2. | time | | L | _______ | | 1. Canada | 38.81s | | | Richard Adu-Bobie, Anson Henry, Jared Connaughton, Bryan Barnett | | 2. Brazil | 38.83s | | | Vicente de Lima, Rafael Ribeiro, Basílio de Moraes Júnior, José Carlos Moreira | | 8. Bahamas | 40.05s | | | Shamar Sands, Troy McIntosh, Adrian Griffith, Jacobi Mitchell | | 9. Argentina | 40.38s | | | José Garaventa, Mariano Jiménez, Miguel Wilken, Ivan Altamirano | | -. Jamaica | DNS | |
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