| 1. Alexandre Jany |  France | 56.9s | | | | | 2. Per-Olof Olsson |  Sweden | 58.8s | | +1.9s | | | 3. Elemer Szathmary |  Hungary | 59.6s | | +2.7s | | | 4. Geza Kadas | Hungary | 59.8s | | +2.9s | | | 4. Maroje Miloslavich |  Yugoslavia | 59.8s | | +2.9s | | | 6. Charles Babey | France | 1:01.5 | | +4.6s | | | 7. Kees Hoving |  Netherlands | 1:01.8 | | +4.9s | |
| World Record: 55.9s Alan Ford, United States - New Heaven, United States 13th April 1944 | | European Champion 1938: 59.8s Kees Hoving, Netherlands |
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Heats - Wednesday, 10th September | | Best 2 from each Heat and Best 3rd advanced to Final. There was additional heat - Final B on Friday, 12th September. |
| Heat 3 | Team | time | | gap | L | | 1. Alexandre Jany | France | 56.2s | ER | | 2 | | 2. Per-Olof Olsson | Sweden | 58.6s | | | 7 | | 3. Elemer Szathmary | Hungary | 59.4s | | | 5 | | 4. Ciril Pelchan | Yugoslavia | 1:00.8 | | | 4 | | 5. Robert Sindorf | Netherlands | 1:03.2 | | | 3 | | 6. Rikhardos Broussalis |  Greece | 1:05.2 | | | 6 | | 7. Walter Schneider |  Switzerland | 1:05.5 | | | 1 |
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| Heat 2 | Team | time | | gap | L | | 1. Geza Kadas | Hungary | 59.3s | | | 7 | | 2. Maroje Miloslavich | Yugoslavia | 59.6s | | | 2 | | 3. Martin Lunden | Sweden | 1:00.5 | | | 1 | | 4. Ron Stedman |  Great Britain | 1:00.8 | | | 4 | | 5. Mario Castro Simas |  Portugal | 1:02.8 | | | 5 | | 6. Miroslav Bubnik |  Czechoslovakia | 1:03.0 | | | 3 | | 7. Celio Brunelleschi |  Italy | 1:03.3 | | | 6 |
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| Heat 1 | Team | time | | gap | L | | 1. Charles Babey | France | 1:00.2 | | | 2 | | 2. Kees Hoving | Netherlands | 1:01.2 | | | 1 | | 3. Jaromir Marik | Czechoslovakia | 1:02.0 | | | 5 | | 4. Vittorio Manetti | Italy | 1:02.2 | | | 3 | | 5. Patrick Kendall | Great Britain | 1:02.3 | | | 6 | | 6. Ari Gudmundsson |  Iceland | 1:04.0 | | | 4 | | -. Carvalho Duarte | Portugal | DNS | | | 7 |
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| Ranking | | time | FR | | 1. Jany | France | 56.8s | | 2. Ollson | Sweden | 57.2s | | 3. Szatmary | Hungary | 58.2s | | 4. Rie |  United States | 58.5s | | 5. Smith | United States | 58.7s | | 6. Kadas | Hungary | 58.8s | | 7. Marik | Czechoslovakia | 59.5s | | 8. Yantorno |  Argentina | 59.5s | | 9. White | Argentina | 59.7s | | 10.Pawlinson | United States | 59.9s |
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| 2 competitors from nation were allowed participate. |
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| All Swimming Pools | time | | 1. Ford | USA | 55.9s | | 2. Jany | FRA | 56.2s | | 3. Fick | USA | 56.4s | | 4. Fischer |  GER | 56.8s | | 4. Csik | HUN | 56.8s | | 4. Yusa |  JPN | 56.8s | | 4. Arai | JPN | 56.8s |
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| 50m Swimming Pool | time | | 1. Jany | FRA | 56.2s | | 2. Fick | USA | 57.2s | | 2. Yusa | JPN | 57.2s | | 4. Arai | JPN | 57.5s | | 5. Csik | HUN | 57.6s | | 5. Ris | USA | 57.6s |
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