| 1. Lukas Maertens |   Germany | 3:41.78 |   | 977 | 4 | 52.01s | 1:48.40 | 2:45.26 |  | 2. Elijah Winnington |   Australia | 3:42.21 | +0.43s | 971 | 6 | 52.78s | 1:49.18 | 2:46.44 |  | 3. Woomin Kim |   South Korea | 3:42.50 | +0.72s | 967 | 1 | 52.50s | 1:48.71 | 2:45.87 |  | 4. Samuel Short |   Australia | 3:42.64 | +0.86s | 965 | 2 | 53.34s | 1:49.41 | 2:46.22 |  | 5. Guilherme Costa |   Brazil | 3:42.76 | AM +0.98 | 954 | 5 | 53.61s | 1:50.25 | 2:47.27 |  | 6. Liwei Fei |   China | 3:44.24 | +2.46s | 945 | 3 | 53.23s | 1:50.29 | 2:47.96 |  | 7. Oliver Klemet |   Germany | 3:46.59 | +4.81s | 916 | 8 | 54.32s | 1:51.22 | 2:48.93 |  | 8. Aaron Shackell |   United States | 3:47.00 | +5.22s | 911 | 7 | 53.81s | 1:51.66 | 2:49.71 |   
| Venue: Paris La Defense Arena. |  | World Record: Paul Biedermann, Germany 3:40.07 Rome, Italy 26th July 2009 |  | Olympic Record: Sun Yang, China 3:40.17 London, Great Britain 28th July 2012  |  | Olympic Qualification Time: 3:46.78 (Rio 2016). Olympic Consideration Time: 3:47.91 (OQT +0.5%). |   
|
 Heats - Saturday, 27th July 10:00 |  | Best 8 times advanced to Final.  |   
| Heat 5 |   | time | gap | pts | L | 100m | 200m | 300m |  | 1. Lukas Maertens |   Germany | 3:44.13 |   | 946 | 4 | 52.13s | 1:48.60 | 2:46.15 |  | 4. Elijah Winnington |   Australia | 3:44.87 | +0.74s | 937 | 5 | 52.45s | 1:48.58 | 2:46.27 |  | 8. Oliver Klemet |   Germany | 3:45.75 | +1.62s | 926 | 3 | 53.86s | 1:50.18 | 2:47.68 |  | 12.Zhanshuo Zhang |   China | 3:46.76 | +2.63s | 914 | 1 | 53.55s | 1:50.71 | 2:48.93 |  | 16.Kieran Bird |   Great Britain | 3:47.54 | +3.41s | 904 | 8 | 53.59s | 1:50.77 | 2:48.90 |  | 17.Marco De Tullio |   Italy | 3:47.90 | +3.77s | 900 | 7 | 54.25s | 1:52.12 | 2:50.27 |  | 21.Petar Petrov Mitsin |   Bulgaria | 3:49.30 | +5.17s | 884 | 2 | 54.17s | 1:51.37 | 2:49.78 |  | 24.Felix Auboeck |   Austria | 3:50.50 | +6.37s | 870 | 6 | 54.02s | 1:52.32 | 2:51.56 |   
| Heat 4 |   | time | gap | pts | L | 100m | 200m | 300m |  | 2. Guilherme Costa |   Brazil | 3:44.23 | +0.10s | 945 | 3 | 54.08s | 1:50.63 | 2:48.12 |  | 5. Samuel Short |   Australia | 3:44.88 | +0.75s | 937 | 4 | 53.72s | 1:50.23 | 2:47.66 |  | 6. Aaron Shackell |   United States | 3:45.45 | +1.32s | 930 | 1 | 54.09s | 1:51.17 | 2:48.62 |  | 7. Woomin Kim |   South Korea | 3:45.52 | +1.39s | 929 | 5 | 53.31s | 1:50.30 | 2:47.82 |  | 10.Danas Rapsys |   Lithuania | 3:46.27 | +2.14s | 920 | 7 | 54.26s | 1:51.74 | 2:49.91 |  | 11.Kieran Smith |   United States | 3:46.47 | +2.34s | 917 | 8 | 54.32s | 1:51.78 | 2:49.38 |  | 12.Lucas Pierre A Henveaux |   Belgium | 3:46.76 | +2.63s | 914 | 2 | 53.80s | 1:51.08 | 2:48.69 |  | 23.Antonio Djakovic |   Switzerland | 3:49.77 | +5.64s | 878 | 6 | 53.87s | 1:51.42 | 2:49.49 |   
| Heat 3 |   | time | gap | pts | L | 100m | 200m | 300m |  | 3. Liwei Fei |   China | 3:44.60 | +0.47s | 940 | 3 | 53.51s | 1:50.85 | 2:48.06 |  | 9. Ahmed Jaouadi |   Tunisia | 3:46.19 | +2.06s | 921 | 5 | 53.95s | 1:51.73 | 2:50.08 |  | 14.Zalan Sarkany |   Hungary | 3:47.33 | +3.20s | 907 | 8 | 54.92s | 1:52.72 | 2:50.66 |  | 15.David Aubry |   France | 3:47.53 | +3.40s | 904 | 7 | 55.14s | 1:52.51 | 2:50.06 |  | 18.Victor Johansson |   Sweden | 3:47.98 | +3.85s | 899 | 4 | 54.47s | 1:51.90 | 2:49.95 |  | 19.Alfonso Enrique Mestre Vivas |   Venezuela | 3:48.20 | +4.07s | 896 | 1 | 54.82s | 1:51.96 | 2:50.62 |  | 20.Matteo Lamberti |   Italy | 3:48.38 | +4.25s | 894 | 6 | 54.68s | 1:52.07 | 2:50.24 |  | 28.Eduardo Oliveira De Moraes |   Brazil | 3:51.74 | +7.61s | 856 | 2 | 55.18s | 1:52.35 | 2:50.15 |  | 30.Jovan Lekic |   Bosnia Herzeg | 3:57.90 | +13.77s | 791 | 6 | 55.36s | 1:56.11 | 2:57.36 |  | 31.Pavel Alovatki |   Moldova | 3:59.77 | +15.64s | 773 | 8 | 57.30s | 1:57.68 | 2:58.47 |  | 32.Loris Bianchi |   San Marino | 4:01.13 | +17.00s | 760 | 1 | 56.82s | 1:57.79 | 3:00.19 |   
| Heat 2 |   | time | gap | pts | L | 100m | 200m | 300m |  | 22.Kregor Zirk |   Estonia | 3:49.59 | +5.46s | 880 | 5 | 54.45s | 1:52.78 | 2:51.75 |  | 25.Eduardo Cisternas |   Chile | 3:51.29 | +7.16s | 861 | 7 | 57.01s | 1:55.57 | 2:53.66 |  | 26.Ilia Sibirtsev |   Uzbekistan | 3:51.52 | +7.39s | 858 | 3 | 55.77s | 1:53.87 | 2:52.55 |  | 27.Hoe Yean Khiew |   Malaya | 3:51.66 | +7.53s | 857 | 4 | 54.84s | 1:53.07 | 2:52.43 |  | 29.Joaquin Vargas |   Peru | 3:54.59 | +10.46s | 825 | 2 | 55.57s | 1:54.46 | 2:54.03 |   
| Final 20:42 |   | time | gap | pts | L | 100m | 200m | 300m |  | Heat 1 |   | time | gap | pts | L | 100m | 200m | 300m |  | 33.Ilias El Fallaki |   Morocco | 4:01.59 | +17.46s | 755 | 5 | 57.14s | 1:57.85 | 3:00.05 |  | 34.Raekwon Jibril Noel |   Guyana | 4:02.29 | +18.16s | 749 | 3 | 57.16s | 1:58.35 | 3:00.85 |  | 35.Alberto Vega |   Costa Rica | 4:03.14 | +19.01s | 741 | 6 | 57.42s | 1:59.01 | 3:01.47 |  | 36.Ridhwan Abubakar Bwana Mohamed |   Kenya | 4:05.14 | +21.01s | 723 | 2 | 57.33s | 1:58.62 | 3:01.26 |  | 37.Nikola Gjuretanovikj |   N. Macedonia | 4:05.38 | +21.25s | 721 | 4 | 57.01s | 1:58.38 | 3:00.98 |   
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