Final | | time | | L | 1. Yevgeniy Lomtyev | Soviet Union | 46.20s | PB | 3 | 2. Ainsley Bennett | Great Britain | 46.43s | | 4 | 3. šngel Heras | Spain | 46.57s | | 1 | 4. Christoph Trappe | West Germany | 46.62s | | 5 | 5. Dušan Malovec | Czechoslovakia | 46.65s | NR | 2 |
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| First 3 from each Semi advanced to Final. |
Semi 1 | | time | | 1. Ainsley Bennett | Great Britain | 46.87s | Q | 2. Yevgeniy Lomtyev | Soviet Union | 46.93s | Q | 3. šngel Heras | Spain | 47.08s | q | 4. Toma Tomov | Bulgaria | 47.35s | | 5. Jean-Jacques Février | France | 47.84s | |
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Semi 2 | | time | | 6. Christoph Trappe | West Germany | 47.90s | Q | 7. DuÅ¡an Malovec | Czechoslovakia | 47.94s | Q | 8. Bozhidar Konstantinov | Bulgaria | 48.25s | | -. Sergey Lovachov | Soviet Union | DNS | | -. Sándor ÃÅ¡jhelyi | Hungary | DNS | |
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Heats - Saturday, | First 2 from each Heat and Best 4 times advanced to Semi-Finals. |
Heat 1 | | time | | 1. Å¡ngel Heras | Spain | 47.33s | Q | 3. Sándor ÃÅ¡jhelyi | Hungary | 47.51s | Q | 5. Bozhidar Konstantinov | Bulgaria | 47.70s | Q | 8. Jean-Jacques Février | France | 47.80s | q | 11.Stefano Malinverni | Italy | 48.06s | |
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Heat 2 | | time | | 2. Sergey Lovachov | Soviet Union | 47.41s | Q | 10.Toma Tomov | Bulgaria | 48.04s | Q | 12.Christoph Trappe | West Germany | 48.17s | Q | 13.Andreas Kaufmann | Switzerland | 48.34s | | 14.Gusztáv Menczer | Hungary | 48.54s | |
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Heat 3 | | time | | 4. Ainsley Bennett | Great Britain | 47.68s | Q | 6. Yevgeniy Lomtyev | Soviet Union | 47.73s | Q | 7. Dušan Malovec | Czechoslovakia | 47.77s | Q | 9. István Takács | Hungary | 48.00s | |
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