Swimming at the 1948 Summer Games: Previous Summer Games ▪ Next Summer Games
Host City: London, Great Britain
Venue(s): Wembley Arena, Wembley, London
Date Started: July 31, 1948
Date Finished: July 31, 1948
Format: Top two in each heat and the next four fastest advanced to the semi-finals.
| Gold: | Bill Smith |
| Silver: | Jimmy McLane |
| Bronze: | John Marshall |
| Rank | Athlete | Age | Team | NOC | T | |
|---|---|---|---|---|---|---|
| 1 | Jimmy McLane | 17 | United States | USA | 4:42.2 | QU/OR |
| 2 | Imre Nyéki | 19 | Hungary | HUN | 5:01.8 | QU |
| 3 | Roy Botham | 25 | Great Britain | GBR | 5:03.4 | |
| 4 | José Durañona | Argentina | ARG | 5:05.8 | ||
| 5 | Alejandro Febrero | 23 | Spain | ESP | 5:16.9 | |
| 6 | Robert Cook | 15 | Bermuda | BER | 5:37.9 | |
| 7 | Jack Hakim | 16 | Egypt | EGY | 5:40.3 |
| Rank | Athlete | Age | Team | NOC | T | |
|---|---|---|---|---|---|---|
| 1 | Alfredo Yantorno | 24 | Argentina | ARG | 4:53.8 | QU |
| 2 | Don Johnston | 18 | South Africa | RSA | 4:57.4 | QU |
| 3 | Miroslav Bartůšek | 26 | Czechoslovakia | TCH | 4:57.9 | QC |
| 4 | Jo Bernardo | 19 | France | FRA | 5:03.8 | |
| 5 | Doug Gibson | Canada | CAN | 5:13.4 | ||
| 6 | Walter Schneider | 20 | Switzerland | SUI | 5:25.5 | |
| 7 | Walter Bardgett | 15 | Bermuda | BER | 5:37.2 |
| Rank | Athlete | Age | Team | NOC | T | |
|---|---|---|---|---|---|---|
| 1 | Jack Hale | 26 | Great Britain | GBR | 4:53.3 | QU |
| 2 | Alex Jany | 19 | France | FRA | 4:53.3 | QU |
| 3 | Marijan Stipetić | 17 | Yugoslavia | YUG | 5:01.4 | QC |
| 4 | Garrick Agnew | 17 | Australia | AUS | 5:06.1 | |
| 5 | Luis Child | Colombia | COL | 5:08.5 | ||
| 6 | Allen Gilchrist | 16 | Canada | CAN | 5:21.5 | |
| 7 | Anwar Aziz Chaudhry | Pakistan | PAK | 6:17.4 |
| Rank | Athlete | Age | Team | NOC | T | |
|---|---|---|---|---|---|---|
| 1 | György Mitró | 18 | Hungary | HUN | 4:56.0 | QU |
| 2 | Bill Heusner | 21 | United States | USA | 4:58.3 | QU |
| 3 | Branko Vidović | Yugoslavia | YUG | 4:58.7 | QC | |
| 4 | Isidoro Martínez-Vela | 23 | Spain | ESP | 5:10.0 | |
| 5 | Juan Garay | 19 | Argentina | ARG | 5:10.4 | |
| 6 | Derek Oatway | 17 | Bermuda | BER | 5:20.9 | |
| 7 | Bimal Chandra | India | IND | 5:38.6 |
| Rank | Athlete | Age | Team | NOC | T | |
|---|---|---|---|---|---|---|
| 1 | Géza Kádas | 21 | Hungary | HUN | 4:52.8 | QU |
| 2 | Per-Olof Östrand | 18 | Sweden | SWE | 4:53.5 | QU |
| 3 | Florbel Pérez | Uruguay | URU | 5:04.7 | ||
| 4 | René Cornu | 19 | France | FRA | 5:05.2 | |
| 5 | Isidoro Pérez | 20 | Spain | ESP | 5:16.1 | |
| 6 | Sambiao Basanung | 26 | Philippines | PHI | 5:21.5 |
| Rank | Athlete | Age | Team | NOC | T | |
|---|---|---|---|---|---|---|
| 1 | Bill Smith | 24 | United States | USA | 4:45.3 | QU |
| 2 | John Marshall | 18 | Australia | AUS | 4:51.4 | QU |
| 3 | Janko Puhar | Yugoslavia | YUG | 5:00.8 | QC | |
| 4 | Luis González | Colombia | COL | 5:02.1 | ||
| 5 | Ari Guðmundsson | 20 | Iceland | ISL | 5:16.2 | |
| 6 | Tom Holt | 24 | Great Britain | GBR | 5:20.7 | |
| 7 | Sultan Karim Ali | Pakistan | PAK | 7:16.9 |