| Final | | time | | gap | L | Rk | | 1. Imre Nyéki |  Hungary | 57.8s | | | - | 1. | | 2. Lev Balandin |  Soviet Union | 58.2s | | +0.4s | - | 2. | | 3. Géza Kádas | Hungary | 58.3s | | +0.5s | - | 3. | | 4. Aldo Eminente |  France | 58.5s | | +0.7s | - | 4. | | 5. Vyacheslav Kurennoy | Soviet Union | 58.6s | | +0.8s | - | 5. | | 6. Göran Larsson |  Sweden | 58.8s | | +1.0s | - | 6. | | 7. Boris ŀkanata |  Yugoslavia | 59.3s | | +1.5s | - | 7. | | 8. Øivind Gunnerud |  Norway | 1:00.0 | | +2.2s | - | 8. |
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Heats - , August | | Best 8 times advanced to Final>. |
| Heat 5 | | time | | L | Rk | | 1. Aldo Eminente | France | 59.0s | | 6 | 4. | | 2. Wim de Vreng |  Netherlands | 59.3s | | 3 | 8. | | 3. Herman Willemse | Netherlands | 1:00.0 | | 7 | 12. | | 4. Lars Krogh | Norway | 1:01.4 | | 5 | 20. | | 5. G. Schober |  Austria | 1:01.9 | | 2 | 23. | | -. Roberto Queralt |  Spain | DNS | | 4 | |
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| Heat 4 | | time | | L | Rk | | 1. Göran Larsson | Sweden | 58.6s | | 2 | 2. | | 2. J. Mroczkowski |  Poland | 1:00.2 | | 4 | 13. | | 3. Paul Voell |  West Germany | 1:00.4 | | 5 | 16. | | 4. Lars Larsson |  Denmark | 1:02.2 | | 7 | 24. | | 5. Fernando Madeira |  Portugal | 1:02.6 | | 1 | 25. | | -. Hans-Joachim Reich |  East Germany | DNS | | 3 | | | -. Vittorio Sosti |  Italy | DNS | | 6 | |
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| Heat 3 | | time | | L | Rk | | 1. Géza Kádas | Hungary | 58.3s | | 3 | 1. | | 2. Lev Balandin | Soviet Union | 58.8s | | 4 | 3. | | 3. Ladislav Bačík |  Czechoslovakia | 1:00.2 | | 7 | 13. | | 4. Willy Blioch | France | 1:00.3 | | 2 | 15. | | 5. Roberto Alberiche | Spain | 1:01.1 | | 5 | 18. | | 6. Geoff Baxter |  Great Britain | 1:01.1 | | 6 | 18. | | -. Milan Jeger | Yugoslavia | DNS | | - | |
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| Heat 2 | | time | | L | Rk | | 1. Boris ŀkanata | Yugoslavia | 59.1s | | 5 | 6. | | 2. Vyacheslav Kurennoy | Soviet Union | 59.3s | | 3 | 8. | | 3. André Laurent |  Belgium | 1:00.6 | | 1 | 17. | | 4. Karri Käyhkö |  Finland | 1:01.6 | | 4 | 21. | | -. Maurizio D'Achille | Italy | DNS | | 2 | | | -. M. Chalabala | Czechoslovakia | DNS | | 6 | | | -. Jack Wardrop | Great Britain | DNS | | 7 | |
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| Heat 1 | | time | | L | Rk | | 1. Imre Nyéki | Hungary | 59.1s | | 6 | 5. | | 2. Øivind Gunnerud | Norway | 59.2s | | 1 | 7. | | 3. Antoni Tołkaczewski | Poland | 59.4s | | 4 | 10. | | 4. Håkan Westesson | Sweden | 59.6s | | 5 | 11. | | 5. Dieter Wagner | West Germany | 1:01.7 | | 3 | 22. | | 6. Roland Baldauff |  Luxembourg | 1:10.1 | | 7 | 26. | | -. Wolfram Gottfried | East Germany | DNS | | 2 | |
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| Swimm-Off | | time | | L | Rk | | 1. Vyacheslav Kurennoy | Soviet Union | 58.7s | | - | Rk | | 2. Wim de Vreng | Netherlands | 59.1s | | - | Rk |
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| Overall | | Heats | Swim-Off | Final | | 1. Imre Nyéki | Hungary | 59.1s 1 h1 | - | 57.8s 1 F | | 2. Lev Balandin | Soviet Union | 58.8s 2 h3 | - | 58.2s 2 F | | 3. Géza Kádas | Hungary | 58.3s 1 h3 | - | 58.3s 3 F | | 4. Aldo Eminente | France | 59.0s 1 h5 | - | 58.5s 4 F | | 5. Vyacheslav Kurennoy | Soviet Union | 59.3s 2 h2 | 58.7s 1 F | 58.6s 5 F | | 6. Göran Larsson | Sweden | 58.6s 1 h4 | - | 58.8s 6 F | | 7. Boris ŀkanata | Yugoslavia | 59.1s 1 h2 | - | 59.3s 7 F | | 8. Øivind Gunnerud | Norway | 59.2s 2 h1 | - | 1:00.0 8 F | | 9. Wim de Vreng | Netherlands | 59.3s 2 h5 | 59.1s 2 F | - | | 10.Antoni Tołkaczewski | Poland | 59.4s 3 h1 | - | - | | 11.Håkan Westesson | Sweden | 59.6s 4 h1 | - | - | | 12.Herman Willemse | Netherlands | 1:00.0 3 h5 | - | - | | 13.Ladislav Bačík | Czechoslovakia | 1:00.2 3 h3 | - | - | | 13.J. Mroczkowski | Poland | 1:00.2 2 h4 | - | - | | 15.Willy Blioch | France | 1:00.3 4 h3 | - | - | | 16.Paul Voell | West Germany | 1:00.4 3 h4 | - | - | | 17.André Laurent | Belgium | 1:00.6 3 h2 | - | - | | 18.Roberto Alberiche | Spain | 1:01.1 5 h3 | - | - | | 19.Geoff Baxter | Great Britain | 1:01.1 6 h3 | - | - | | 20.Lars Krogh | Norway | 1:01.4 4 h5 | - | - | | 21.Karri Käyhkö | Finland | 1:01.6 4 h2 | - | - | | 22.Dieter Wagner | West Germany | 1:01.7 5 h1 | - | - | | 23.G. Schober | Austria | 1:01.9 5 h5 | - | - | | 24.Lars Larsson | Denmark | 1:02.2 4 h4 | - | - | | 25.Fernando Madeira | Portugal | 1:02.6 5 h4 | - | - | | 26.Roland Baldauff | Luxembourg | 1:10.1 6 h1 | - | - | | -. Wolfram Gottfried | East Germany | - DNS h1 | - | - | | -. Maurizio D'Achille | Italy | - DNS h2 | - | - | | -. Chalabala | Czechoslovakia | - DNS h2 | - | - | | -. Jack Wardrop | Great Britain | - DNS h2 | - | - | | -. Milan Jeger | Yugoslavia | - DNS h3 | - | - | | -. Hans-Joachim Reich | East Germany | - DNS h4 | - | - | | -. Vittorio Sosti | Italy | - DNS h4 | - | - | | -. Roberto Queralt | Spain | - DNS h5 | - | - |
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