Swimming at the 2012 Summer Games: Previous Summer Games
Host City: London, Great Britain
Venue(s): London Aquatics Centre, Olympic Park, Stratford, London
Date Started: August 2, 2012
Date Finished: August 2, 2012
Format: Fastest eight swimmers advanced to final
| Gold: | Michael Phelps |
| Silver: | Yevgeny Korotyshkin Chad le Clos |
| Rank | Athlete | Age | Team | NOC | T | RT | |
|---|---|---|---|---|---|---|---|
| 1 | Michael Phelps | 27 | United States | USA | 50.86 | 0.71 | Q |
| 2 | Steffen Deibler | 25 | Germany | GER | 51.76 | 0.68 | Q |
| 3 | Konrad Czerniak | 23 | Poland | POL | 51.78 | 0.77 | Q |
| 4 | Chris Wright | 24 | Australia | AUS | 52.11 | 0.72 | |
| 5 | Zhou Jiawei | 28 | China | CHN | 52.30 | 0.72 | |
| 6 | Bence Pulai | 20 | Hungary | HUN | 52.40 | 0.68 | |
| 6 | Benjamin Starke | 25 | Germany | GER | 52.40 | 0.80 | |
| 8 | François Heersbrandt | 22 | Belgium | BEL | 52.71 | 0.76 |
| Rank | Athlete | Age | Team | NOC | T | RT | |
|---|---|---|---|---|---|---|---|
| 1 | Chad le Clos | 20 | South Africa | RSA | 51.42 | 0.72 | Q |
| 2 | Tyler McGill | 24 | United States | USA | 51.61 | 0.60 | Q |
| 3 | Milorad Čavić | 28 | Serbia | SRB | 51.66 | 0.73 | Q |
| 4 | Joeri Verlinden | 24 | Netherlands | NED | 51.75 | 0.71 | Q |
| 5 | Yevgeny Korotyshkin | 29 | Russia | RUS | 51.85 | 0.65 | Q |
| 6 | Dinko Jukic | 23 | Austria | AUT | 51.99 | 0.70 | |
| 7 | Nikolay Skvortsov | 28 | Russia | RUS | 52.03 | 0.72 | |
| 8 | Jason Dunford | 25 | Kenya | KEN | 52.16 | 0.67 |