| Final A | Team | time | -)time | L | React. | 100m | 200m | 300m | | 1. Charles Gipson Houchin | USA | 3:50.95 | | 2 | 0.78s | 1. | 55.27s | 2. | 1:54.46 | 1. | 2:53.12 | | 2. Matthew Edward Patton | USA | 3:51.25 | 0.30s | 4 | 0.76s | 2. | 55.50s | 1. | 1:54.37 | 2. | 2:53.23 | | 3. Cristian Quintero | VEN | 3:52.51 | 1.56s | 5 | 0.71s | 3. | 56.08s | 3. | 1:55.44 | 4. | 2:54.94 | | 4. Juan Martin Pereyra | ARG | 3:52.71 | 1.76s | 7 | 0.83s | 4. | 56.27s | 4. | 1:55.78 | 3. | 2:54.93 | | 5. Lucas Kanieski | BRA | 3:56.26 | 5.31s | 1 | 0.81s | 5. | 56.52s | 5. | 1:56.30 | 5. | 2:56.69 | | 6. Alejandro Gomez | VEN | 3:56.28 | 5.33s | 6 | | 8. | 57.17s | 7. | 1:57.01 | 6. | 2:57.12 | | 7. Martin Naidich | ARG | 3:56.77 | 5.82s | 3 | 0.76s | 6. | 56.53s | 8. | 1:57.15 | 8. | 2:57.96 | | 8. Arturo Perez Vertti | MEX | 3:58.33 | 7.38s | 8 | 0.80s | 7. | 56.68s | 6. | 1:56.74 | 7. | 2:57.59 |
| Final B | Team | time | -)time | L | React. | 100m | 200m | 300m | | 9. Francis Thomas Despond | CAN | 4:00.16 | | 5 | 0.71s | 1. | 57.96s | 2. | 2:00.03 | 3. | 3:01.89 | | 10.Giuliano Rocco | BRA | 4:00.61 | 0.45s | 3 | 0.69s | 3. | 59.05s | 3. | 2:00.78 | 1. | 3:01.38 | | 11.Daniel Delgadillo | MEX | 4:00.81 | 0.65s | 4 | 0.76s | 5. | 59.06s | 1. | 1:59.99 | 2. | 3:01.41 | | 12.Raul Martinez | PUR | 4:04.25 | 4.09s | 6 | 0.75s | 2. | 58.67s | 4. | 2:01.25 | 5. | 3:03.80 | | 13.Sebastian Jahnsen | PER | 4:05.56 | 5.40s | 2 | 0.71s | 3. | 59.05s | 5. | 2:01.33 | 4. | 3:03.62 | | 14.Allan Gutierrez | HIN | 4:19.71 | 19.55s | 7 | | 6. | 1:00.64 | 6. | 2:05.58 | 6. | 3:12.31 |
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| World record: | | Paul Biedermann (GER) 3:40.07 | | Roma (ITA) 26.07.2009 | | Pan American Games record: | | Matt Patton (USA) 3:49.77 | | Rio de Janeiro (BRA) 18.07.2007 |
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| Qualification: | | Standard A: 4:00.1 | | Standard B: 4:07.2 |
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| Heats | Team | time | -)time | L | React. | 100m | 200m | 300m | Heat | | 1. Matthew Edward Patton | USA | 3:54.70 | | 4 | 0.76s | 1. | 56.51s | 1. | 1:55.95 | 1. | 2:55.36 | Heat 1. | | 2. Cristian Quintero | VEN | 3:56.67 | 1.97s | 5 | 0.72s | 2. | 57.05s | 2. | 1:56.88 | 2. | 2:57.05 | Heat 1. | | 3. Martin Naidich | ARG | 3:56.81 | 2.11s | 2 | 0.78s | 4. | 57.57s | 4. | 1:58.26 | 4. | 2:58.64 | Heat 1. | | 4. Alejandro Gomez | VEN | 3:57.18 | 2.48s | 3 | | 3. | 57.26s | 3. | 1:57.06 | 3. | 2:57.58 | Heat 1. | | 5. Charles Gipson Houchin | USA | 3:57.98 | 3.28s | 4 | 0.77s | 3. | 57.11s | 2. | 1:57.51 | | | Heat 2. | | 6. Juan Martin Pereyra | ARG | 3:58.10 | 3.40s | 5 | 0.79s | 2. | 56.90s | 4. | 1:57.73 | | | Heat 2. | | 7. Lucas Kanieski | BRA | 3:58.30 | 3.60s | 3 | | 1. | 56.86s | 1. | 1:57.43 | | | Heat 2. | | 8. Arturo Perez Vertti | MEX | 3:58.60 | 3.90s | 6 | | 4. | 57.33s | 5. | 1:57.90 | | | Heat 2. | | 9. Daniel Delgadillo | MEX | 4:00.60 | 5.90s | 7 | 0.73s | 5. | 58.00s | 5. | 1:58.62 | | | Heat 1. | | 10.Francis Thomas Despond | CAN | 4:01.88 | 5.90s | 2 | 0.78s | 5. | 57.42s | 3. | 1:57.66 | | | Heat 2. | | 11.Giuliano Rocco | BRA | 4:04.25 | 9.55s | 6 | 0.72s | 6. | 58.88s | 6. | 2:01.21 | 6. | 3:02.54 | Heat 1. | | 12.Raul Martinez | PUR | 4:05.05 | 10.35s | 7 | 0.75s | 6. | 57.88s | 6. | 1:59.36 | | | Heat 2. | | 13.Sebastian Jahnsen | PER | 4:13.73 | 19.03s | 1 | 0.71s | 7. | 57.99s | 7. | 2:00.20 | | | Heat 2. | | 14.Allan Gutierrez | HON | 4:20.17 | 25.47s | 1 | 0.88s | 7. | 1:00.05 | 7. | 2:04.53 | 7. | 3:11.15 | Heat 1. |
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