# Swimming at the 2017 World Aquatics Championships – Men's 400 metre individual medley

The Men's 400 metre individual medley competition at the 2017 World Championships was held on 30 July 2017.

## Records

Prior to the competition, the existing world and championship records were as follows.
| World record | Michael Phelps (USA) | 4:03.84 | Beijing, China | 10 August 2008 |
| Competition record | Michael Phelps (USA) | 4:06.22 | Melbourne, Australia | 1 April 2007 |
The following new records were set during this competition.
| Date | Event | Name | Nationality | Time | Record |
| 30 July | Final | Chase Kalisz | United States | 4:05.90 | CR |

## Results
### Heats

The heats were held at 09:50.
| Rank | Heat | Lane | Name | Nationality | Time | Notes |
| 1 | 3 | 4 | Chase Kalisz | United States | 4:09.79 | Q |
| 2 | 3 | 3 | Max Litchfield | Great Britain | 4:10.57 | Q, NR |
| 3 | 4 | 5 | Dávid Verrasztó | Hungary | 4:11.89 | Q |
| 4 | 3 | 5 | Daiya Seto | Japan | 4:12.89 | Q |
| 5 | 3 | 6 | Brandonn Almeida | Brazil | 4:13.13 | Q |
| 6 | 4 | 3 | Jay Litherland | United States | 4:13.95 | Q |
| 7 | 4 | 4 | Kosuke Hagino | Japan | 4:14.15 | Q |
| 8 | 3 | 1 | Richard Nagy | Slovakia | 4:15.69 | Q |
| 9 | 4 | 8 | Mark Szaranek | Great Britain | 4:15.71 | |
| 10 | 4 | 1 | Joan Lluís Pons | Spain | 4:16.27 | |
| 11 | 3 | 8 | Alexis Santos | Portugal | 4:17.34 | |
| 12 | 2 | 6 | Tomas Peribonio | Ecuador | 4:17.37 | NR |
| 13 | 3 | 7 | Jacob Heidtmann | Germany | 4:17.68 | |
| 14 | 4 | 6 | Federico Turrini | Italy | 4:18.25 | |
| 15 | 4 | 7 | Jérémy Desplanches | Switzerland | 4:18.69 | |
| 16 | 2 | 7 | Patrick Stäber | Austria | 4:19.15 | |
| 17 | 4 | 9 | Tristan Cote | Canada | 4:19.87 | |
| 18 | 3 | 2 | Gergely Gyurta | Hungary | 4:19.90 | |
| 19 | 4 | 2 | Wang Shun | China | 4:20.01 | |
| 20 | 2 | 8 | Ayrton Sweeney | South Africa | 4:20.10 | |
| 21 | 4 | 0 | Clyde Lewis | Australia | 4:20.34 | |
| 22 | 2 | 4 | Dawid Szwedzki | Poland | 4:20.48 | |
| 23 | 2 | 3 | Bradlee Ashby | New Zealand | 4:20.65 | |
| 24 | 2 | 0 | Anton Ipsen | Denmark | 4:20.74 | |
| 25 | 2 | 5 | Pavel Janeček | Czech Republic | 4:22.11 | |
| 26 | 2 | 2 | Christoph Meier | Liechtenstein | 4:22.29 | |
| 27 | 3 | 9 | Etay Gurevich | Israel | 4:22.66 | |
| 28 | 1 | 3 | Ahmed Hamdy | Egypt | 4:25.16 | |
| 28 | 1 | 4 | Cho Cheng-chi | Chinese Taipei | 4:25.16 | |
| 30 | 1 | 8 | Nguyễn Hữu Kim Sơn | Vietnam | 4:26.07 | |
| 31 | 3 | 0 | Wang Zhou | China | 4:28.25 | |
| 32 | 1 | 5 | Ricardo Vargas | Mexico | 4:30.37 | |
| 33 | 1 | 2 | Luis Vega Torres | Cuba | 4:30.77 | |
| 34 | 2 | 9 | Joo Jae-gu | South Korea | 4:31.14 | |
| 35 | 1 | 7 | Thomas Tsiopanis | Cyprus | 4:34.49 | |
| 36 | 1 | 1 | Brandon Schuster | Samoa | 4:34.60 | NR |
| 37 | 1 | 0 | Mubal Azzam Ibrahim | Maldives | 5:48.11 | NR |
| | 1 | 6 | Jonathan Gómez | Colombia | DNS | DNS |
| | 2 | 1 | Carlos Omaña | Venezuela | DNS | DNS |

### Final

The final was held at 17:39.
| Rank | Lane | Name | Nationality | Time | Notes |
| | 4 | Chase Kalisz | United States | 4:05.90 | CR |
| | 3 | Dávid Verrasztó | Hungary | 4:08.38 | |
| | 6 | Daiya Seto | Japan | 4:09.14 | |
| 4 | 5 | Max Litchfield | Great Britain | 4:09.62 | NR |
| 5 | 7 | Jay Litherland | United States | 4:12.05 | |
| 6 | 1 | Kosuke Hagino | Japan | 4:12.65 | |
| 7 | 2 | Brandonn Almeida | Brazil | 4:13.00 | |
| 8 | 8 | Richard Nagy | Slovakia | 4:16.33 | |