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: August 5, 1948
Date Finished: August 5, 1948
Format: Top two in each heat and the next four fastest advanced to the semi-finals.
| Gold: | Jimmy McLane |
| Silver: | John Marshall |
| Bronze: | György Mitró |
| Rank | Athlete | Age | Team | NOC | T | |
|---|---|---|---|---|---|---|
| 1 | Bill Heusner | 21 | United States | USA | 20:29.6 | QU |
| 2 | Ferenc Vörös | 26 | Hungary | HUN | 20:31.9 | QU |
| 3 | Jack Wardrop | 16 | Great Britain | GBR | 20:43.0 | |
| 4 | Angel Maldonado | Mexico | MEX | 20:47.2 | ||
| 5 | Adolfo Mancuso | Argentina | ARG | 21:16.7 | ||
| 6 | Vanja Illić | Yugoslavia | YUG | 21:17.0 | ||
| 7 | Anwar Aziz Chaudhry | Pakistan | PAK | 25:37.4 |
| Rank | Athlete | Age | Team | NOC | T | |
|---|---|---|---|---|---|---|
| 1 | Jimmy McLane | 17 | United States | USA | 20:17.7 | QU |
| 2 | Jack Hale | 26 | Great Britain | GBR | 20:31.9 | QU |
| 3 | Rolf Kestener | 17 | Brazil | BRA | 20:36.3 | QC |
| 4 | Joseph Reynders | 18 | Belgium | BEL | 21:23.1 | |
| 5 | Janko Puhar | Yugoslavia | YUG | 21:45.1 |
| Rank | Athlete | Age | Team | NOC | T | |
|---|---|---|---|---|---|---|
| 1 | Marijan Stipetić | 17 | Yugoslavia | YUG | 20:10.1 | QU |
| 2 | Donald Bland | 17 | Great Britain | GBR | 20:13.9 | QU |
| 3 | Sambiao Basanung | 26 | Philippines | PHI | 21:05.9 | |
| 4 | Alejandro Febrero | 23 | Spain | ESP | 21:15.9 | |
| 5 | Doug Gibson | Canada | CAN | 21:25.6 | ||
| 6 | Bimal Chandra | India | IND | 22:52.9 | ||
| 7 | Philip Tribley | Bermuda | BER | 22:56.6 |
| Rank | Athlete | Age | Team | NOC | T | |
|---|---|---|---|---|---|---|
| 1 | György Csordás | 19 | Hungary | HUN | 20:06.8 | QU |
| 2 | Per-Olof Östrand | 18 | Sweden | SWE | 20:19.8 | QU |
| 3 | Luis González | Colombia | COL | 20:40.6 | QC | |
| 4 | Isidoro Martínez-Vela | 23 | Spain | ESP | 21:13.7 | |
| 5 | César Borja | 13 | Mexico | MEX | 21:15.8 | |
| 6 | Garrick Agnew | 17 | Australia | AUS | 21:40.1 | |
| 7 | Allen Gilchrist | 16 | Canada | CAN | 23:00.6 |
| Rank | Athlete | Age | Team | NOC | T | |
|---|---|---|---|---|---|---|
| 1 | John Marshall | 18 | Australia | AUS | 20:01.1 | QU |
| 2 | Forbes Norris | 20 | United States | USA | 20:21.0 | QU |
| 3 | Jo Bernardo | 19 | France | FRA | 20:34.8 | QC |
| 4 | Luis Child | Colombia | COL | 20:47.0 | ||
| 5 | Juan Garay | 19 | Argentina | ARG | 21:33.2 | |
| 6 | Jesús Domínguez | 22 | Spain | ESP | 21:33.5 | |
| 7 | Derek Oatway | 17 | Bermuda | BER | 21:55.1 |
| Rank | Athlete | Age | Team | NOC | T | |
|---|---|---|---|---|---|---|
| 1 | György Mitró | 18 | Hungary | HUN | 20:15.0 | QU |
| 2 | Miroslav Bartůšek | 26 | Czechoslovakia | TCH | 20:19.4 | QU |
| 3 | Florbel Pérez | Uruguay | URU | 20:20.2 | QC | |
| 4 | Don Johnston | 18 | South Africa | RSA | 20:41.8 | |
| 5 | Ramón Bravo | 22 | Mexico | MEX | 20:45.5 | |
| 6 | René Cornu | 19 | France | FRA | 21:01.6 |