| Final 19:36 | time | +time | L | | | 1. Yang Sun |  CHN | 14:31.02 | WR | 04 | Stats | | 2. Ryan Cochrane |  CAN | 14:39.63 | +8.61s | 03 | Stats | | 3. Oussama Mellouli |  TUN | 14:40.31 | +9.29s | 05 | Stats | | 4. Taehwan Park |  KOR | 14:50.61 | +19.59s | 07 | Stats | | 5. Gregorio Paltrinieri |  ITA | 14:51.92 | +20.90s | 06 | Stats | | 6. Connor Jaeger |  USA | 14:52.99 | +21.97s | 01 | Stats | | 7. Mateusz Sawrymowicz |  POL | 14:54.32 | +23.30s | 08 | Stats | | 8. Daniel Fogg |  GBR | 15:00.76 | +29.74s | 02 | Stats |
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| Heat 4 | time | time | L | Rk. | | | 1. Yang Sun | CHN | 14:43.25 | - | 04 | 1. | Times | | 2. Oussama Mellouli | TUN | 14:46.23 | 2.98s | 07 | 2. | Times | | 3. Andrew Gemmell | USA | 14:59.05 | 15.80s | 03 | 9. | Times | | 4. Sergii Frolov |  UKR | 14:59.19 | 15.94s | 01 | 10. | Times | | 5. Job Kienhuis |  NED | 15:03.16 | 19.91s | 06 | 11. | Times | | 6. Pal Joensen |  DEN | 15:18.42 | 35.17s | 05 | 17. | Times | | 7. Jarrod Poort |  AUS | 15:20.82 | 37.57s | 08 | 18. | Times | | 8. Anthony Pannier |  FRA | 15:24.08 | 40.83s | 02 | 20. | Times |
| Heat 3 | time | time | L | Rk. | | | 1. Ryan Cochrane | CAN | 14:49.31 | - | 04 | 3. | Times | | 2. Taehwan Park | KOR | 14:56.89 | 7.58s | 05 | 6. | Times | | 3. Connor Jaeger | USA | 14:57.56 | 8.25s | 03 | 7. | Times | | 4. Gergely Gyurta |  HUN | 15:04.22 | 14.91s | 07 | 12. | Times | | 5. Damien Joly | FRA | 15:08.50 | 19.19s | 02 | 14. | Times | | 6. Jun Dai | CHN | 15:13.90 | 24.59s | 01 | 15. | Times | | 7. Dave Davies | GBR | 15:14.77 | 25.46s | 06 | 16. | Times | | 8. Juan Martin Pereyra |  ARG | 15:36.72 | 47.41s | 08 | 29. | Times |
| Heat 2 | time | time | L | Rk. | | | 1. Gregorio Paltrinieri | ITA | 14:50.11 | - | 05 | 4. | Times | | 2. Daniel Fogg | GBR | 14:56.12 | 6.01s | 03 | 5. | Times | | 3. Mateusz Sawrymowicz | POL | 14:57.59 | 7.48s | 06 | 8. | Times | | 4. Gabriele Detti | ITA | 15:06.22 | 16.11s | 02 | 13. | Times | | 5. Gergo Kis | HUN | 15:21.74 | 31.63s | 04 | 19. | Times | | 6. Heerden Herman |  RSA | 15:25.71 | 35.60s | 07 | 21. | Times | | 7. Alejandro Gomez Perez |  VEN | 15:27.38 | 37.27s | 08 | 23. | Times | | 8. Matias Koski |  FIN | 15:34.80 | 44.69s | 01 | 27. | Times |
| Heat 1 | time | time | L | Rk. | | | 1. Arturo Perez Vertti Ferrer |  MEX | 15:25.91 | - | 04 | 22. | Times | | 2. Jan Micka |  CZE | 15:29.34 | 3.43s | 07 | 24. | Times | | 3. Mckee Anton Sveinn |  ISL | 15:29.40 | 3.49s | 06 | 25. | Times | | 4. Ediz Yildirimer |  TUR | 15:29.97 | 4.06s | 05 | 26. | Times | | 5. Ventsislav Aydarski |  BUL | 15:34.86 | 8.95s | 03 | 28. | Times | | 6. Uladzimir Zhyharau |  BLR | 15:48.67 | 22.76s | 02 | 30. | Times | | 7. Adaveeshaiah P. Gagan Ullalmath |  IND | 16:31.14 | 1:05.23 | 01 | 31. | Times |
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| | F | | Heat 4 | 2 | | Heat 3 | 3 | | Heat 2 | 3 | | Heat 1 |
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| Total eligible to participate 31 swimmers |
| Olympic Qualifying Time - 15:11.83 - 12+9 | | Dai Jun | CHN | Sun Yang | CHN | | Damien Joly | FRA | Anthony Pannier | FRA | | Daniel Fogg | GBR | David Davies | GBR | | Gergő Kis | HUN | Gergely Gyurta | HUN | | Gabriele Detti | ITA | Gregorio Paltrinieri | ITA | | Andrew Gemmell | USA | Connor Jaeger | USA | | Ryan Cochrane | CAN | | Pal Joensen | DEN | | Matias Koski | FIN | | Job Kienhuis | NED | | Mateusz Sawrymowicz | POL | | Heerdan Herman | RSA | | Park Tae-Hwan | KOR | | Oussama Mellouli | TUN | | Sergiy Frolov | UKR |
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| Olympic Selection Time - 15:43.74 - 9 | | Jarrod Poort | AUS | 15:13.38 | | Juan Martín Pereyra | ARG | 15:21.92 | | Alejandro Gómez | VEN | 15:24.29 | | Arturo Pérez Vertti | MEX | 15:24.58 | | Ediz Yildrimer | TUR | 15:25.71 | | Christian Scheruebl | AUT | 15:26.79 | | Ventsislav Aydarski | BUL | 15:27.02 | | Anton Sveinn McKee | ISL | 15:27.08 | | Uladzimir Zhyharau | BLR | 15:28.22 | | Jan Micka | CZE | 15:--.-- |
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| Wildcard Places - 1 | | Ullalmath Gagan | IND |
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| Olympic Qualification time | time | place | date | birth | | 1. Yang Sun | CHN | 14:34.14 | Shanghai (CHN) | 24.07.2011 | 01/12/1991 | | 2. Ryan Cochrane | CAN | 14:44.46 | Shanghai (CHN) | 24.07.2011 | 29/10/1988 | | 3. Gergo Kis | HUN | 14:45.66 | Shanghai (CHN) | 24.07.2011 | 19/01/1988 | | 4. Pal Joensen | DEN | 14:46.33 | Shanghai (CHN) | 24.07.2011 | 10/12/1990 | | 5. Taehwan Park | KOR | 14:47.38 | Sydney (AUS) | 10.02.2012 | 27/09/1989 | | 6. Gregorio Paltrinieri | ITA | 14:48.92 | Debrecen (HUN) | 21.05.2012 | 05/09/1994 | | 7. Andrew Gemmell | USA | 14:52.19 | Omaha (USA) | 25.06.2012 | 20/02/1991 | | 8. Connor Jaeger | USA | 14:52.51 | Omaha (USA) | 25.06.2012 | 30/04/1991 | | 9. Daniel Fogg | GBR | 14:55.30 | London (GBR) | 03.03.2012 | 24/08/1987 | | 10.Job Kienhuis | NED | 14:58.34 | Eindhoven (NED) | 02.12.2011 | 07/11/1989 | | 11.David Davies | GBR | 15:00.73 | London (GBR) | 03.03.2012 | 03/03/1985 | | 12.Mateusz Sawrymowicz | POL | 15:00.82 | Ostrowiec (POL) | 19.05.2011 | 22/04/1987 | | 13.Anthony Pannier | FRA | 15:01.43 | Dunkerke (FRA) | 18.03.2012 | 07/09/1988 | | 14.Damien Joly | FRA | 15:02.43 | Dunkerke (FRA) | 18.03.2012 | 04/06/1992 | | 15.Gabriele Detti | ITA | 15:02.45 | Rome (ITA) | 14.06.2012 | 29/08/1994 | | 16.Oussama Mellouli | TUN | 15:04.16 | Indianapolis (USA) | 03.03.2011 | 16/02/1984 | | 17.Gergely Gyurta | HUN | 15:04.38 | Debrecen (HUN) | 21.05.2012 | 12/09/1991 | | 18.Heerden Herman | RSA | 15:06.11 | Durban (RSA) | 28.01.2012 | 20/12/1990 | | 19.Sergii Frolov | UKR | 15:06.17 | Shenzhen (CHN) | 14.08.2011 | 14/04/1992 | | 20.Jun Dai | CHN | 15:09.15 | Shanghai (CHN) | 24.07.2011 | 06/02/1992 | | 21.Matias Koski | FIN | 15:09.17 | Indianapolis (USA) | 29.03.2012 | 18/05/1994 |
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London 2012