| Heat 3 20:08 | time | gap | L | React. | 400m | 800m | 1200m | | 1. Ryan Cochrane |  CAN | 15:06.40 | PR | 4 | 0.77 | 3:57.94 | 1. | 7:59.73 | 1. | 12:02.81 | 1. | | 2. Andrew Gemmell |  USA | 15:09.92 | 3.52 | 5 | 0.78 | 3:59.87 | 4. | 8:01.08 | 2. | 12:07.26 | 2. | | 3. Brandonn Almeida |  BRA | 15:11.70 | 5.30 | 3 | 0.82 | 4:05.04 | 6. | 8:10.02 | 6. | 12:13.98 | 5. | | 4. Marcelo Acosta |  ESA | 15:16.26 | 9.86 | 1 | 0.73 | 3:59.11 | 2. | 8:05.62 | 4. | 12:12.55 | 3. | | 5. Nelson Maitland | CAN | 15:16.35 | 9.95 | 6 | 0.72 | 4:00.54 | 5. | 8:06.42 | 5. | 12:13.45 | 4. | | 6. Ryan Feeley | USA | 15:19.99 | 13.59 | 2 | 0.84 | 3:59.44 | 3. | 8:04.10 | 3. | 12:14.98 | 6. | | 7. Lucas Kanieski | BRA | 15:23.91 | 17.51 | 7 | 0.84 | 4:05.82 | 8. | 8:14.01 | 7. | 12:22.36 | 8. | | 8. Mateo De Angulo |  COL | 15:24.27 | 17.87 | 8 | 0.69 | 4:05.18 | 7. | 8:14.08 | 8. | 12:22.16 | 7. |
| World Record: Sun Yang (CHN) 14:31.02, London (GBR), 04.08.2012. | | Pan American Games Record: Chip Peterson (USA) 15:12.33, Rio de Janeiro (BRA), 21.07.2007. | | Qualification times. Standard A: 15:48.39, Standard B: 16:45.29. |
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| Heat 2 morning 11:08 | time | gap | L | React. | 400m | 800m | 1200m | | 9. Ricardo Vargas |  MEX | 15:27.23 | | 6 | 0.73 | 4:08.17 | 5. | 8:18.30 | 3. | 12:27.05 | 2. | | 10.Alejandro Gomez |  VEN | 15:27.30 | 0.07 | 4 | 0.83 | 4:05.77 | 1. | 8:10.75 | 1. | 12:20.10 | 1. | | 11.Arturo Perez | MEX | 15:42.39 | 15.16 | 2 | 0.82 | 4:06.72 | 4. | 8:19.96 | 5. | 12:33.51 | 3. | | 12.Martin Naidich |  ARG | 15:46.99 | 19.76 | 5 | 0.74 | 4:06.15 | 2. | 8:18.19 | 2. | 12:34.94 | 4. | | 14.Christian Bayo |  PUR | 15:49.47 | 22.24 | 7 | 0.76 | 4:10.60 | 6. | 8:24.18 | 6. | 12:39.82 | 6. | | 15.Andy Arteta | VEN | 15:56.57 | 29.34 | 3 | 0.81 | 4:06.44 | 3. | 8:18.69 | 4. | 12:38.51 | 5. | | -. Yeziel Morales | PUR | DNS | | 1 | | | | | | | |
| Heat 1 morning 10:49 | time | gap | L | React. | 400m | 800m | 1200m | | 13.Tomas Peribonio |  ECU | 15:43.36 | | 3 | 0.65 | 4:09.86 | 1. | 8:22.82 | 1. | 12:36.57 | 1. | | 16.Felipe Tapia |  CHI | 16:08.48 | 25.12 | 4 | 0.83 | 4:12.08 | 2. | 8:32.14 | 2. | 12:53.16 | 2. | | 17.Gustavo Giovanni Gutierrez |  PER | 16:08.75 | 25.39 | 5 | 0.75 | 4:12.79 | 3. | 8:32.49 | 3. | 12:55.69 | 3. |
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| No qualification heats. Ranking made by time. Swimmers distributed in heats following their qualification results. | | |
| Swimmer | Q. time | Birth | | Heat 3 Night | | Ryan Cochrane | CAN | 14:44.03 | 29 OCT 1988 | | Andrew Gemmell | USA | 15:07.82 | 20 FEB 1991 | | Brandonn Almeida | BRA | 15:12.20 | 16 MAR 1997 | | Nelson Maitland | CAN | 15:12.47 | 16 NOV 1988 | | Ryan Feeley | USA | 15:14.18 | 12 OCT 1991 | | Lucas Kanieski | BRA | 15:14.18 | 25 JAN 1990 | | Marcelo Acosta | ESA | 15:22.43 | 11 JUL 1996 | | Mateo De Angulo | COL | 15:26.71 | 18 JUN 1990 | | Heat 2 Morning | | Alejandro Gomez | VEN | 15:30.28 | 22 APR 1985 | | Martin Naidich | ARG | 15:31.07 | 17 DEC 1990 | | Andy Arteta | VEN | 15:32.48 | 28 OCT 1995 | | Ricardo Vargas | MEX | 15:36.19 | 21 NOV 1997 | | Arturo Perez | MEX | 15:37.85 | 10 SEP 1991 | | Christian Bayo | PUR | 15:37.89 | 12 APR 1991 | | Juan Martin Pereyra | ARG | 15:40.73 | 10 AUG 1980 | | Heat 1 Morning | | Yeziel Morales | PUR | 15:43.80 | 16 JAN 1966 | | Standard A: 15:48.39 | | Felipe Tapia | CHI | 15:52.36 | 25 APR 1995 | | Gustavo Giovanni Gutierrez | PER | 15:57.32 | 26 DEC 1998 | | Standard B: 16:45.29 | | Tomas Peribonio | ECU | | 16 JAN 1996 |
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