| Final | time | | | 1. Luciano Sušanj |  YUG | 1:44.07 | NR CR | | 2. Steve Ovett |  GBR | 1:45.76 | | | 3. Markku Taskinen |  FIN | 1:45.89 | | | 4. Vladimir Ponomaryev |  URS | 1:46.02 | | | 5. Gerhard Stolle |  GDR | 1:46.19 | | | 6. Marcello Fiasconaro |  ITA | 1:46.28 | | | 7. Dieter Fromm | GDR | 1:46.29 | | | 8. Willi Wülbeck |  FRG | 1:46.31 | |
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| | | First 4 progress to Final. |
| Semi 1 | time | & | | 1. Steve Ovett | GBR | 1:47.1 | Q | | 2. Luciano Sušanj | YUG | 1:47.2 | Q | | 3. Gerhard Stolle | GDR | 1:47.4 | Q | | 4. Willi Wülbeck | FRG | 1:47.4 | Q | | 5. Marcel Philippe |  FRA | 1:47.5 | | | 6. Åke Svenson |  SWE | 1:47.7 | | | 7. Jozef Plachý |  TCH | 1:47.9 | | | 8. Hans-Henning Ohlert | GDR | 1:48.6 | |
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| Semi 2 | time | | | 1. Vladimir Ponomaryev | URS | 1:47.6 | Q | | 2. Marcello Fiasconaro | ITA | 1:47.7 | Q | | 3. Dieter Fromm | GDR | 1:47.7 | Q | | 4. Markku Taskinen | FIN | 1:47.7 | Q | | 5. Gheorghe Ghipu |  ROU | 1:47.8 | | | 6. Johan Van Wezer |  BEL | 1:48.0 | | | 7. Fernando Mamede |  POR | 1:48.5 | | | 8. Josef Schmid | FRG | 1:48.6 | |
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Heats - Monday 02.09 | | First 3 and Best 4 progress to Semi-Finals. |
| Heat 1 | time | & | | 1. Johan Van Wezer | BEL | 1:47.7 | Q | | 2. Gerhard Stolle | GDR | 1:47.7 | Q | | 3. Marcello Fiasconaro | ITA | 1:47.8 | Q | | 4. Heinz Langenbach | FRG | 1:47.9 | | | 5. David McMeekin | GBR | 1:48.1 | | | 6. Andrés Ballbé |  ESP | 1:48.2 | | | 7. Günther Hasler |  LIE | 1:50.2 | |
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| Heat 2 | time | & | | 1. Gheorghe Ghipu | ROU | 1:46.9s | Q | | 2. Steve Ovett | GBR | 1:47.0s | Q | | 3. Jozef Plachý | TCH | 1:47.1s | Q | | 4. Vladimir Ponomaryev | URS | 1:47.1s | q | | 5. Fernando Mamede | POR | 1:47.5s | NR q | | 6. Åke Svenson | SWE | 1:47.5s | q | | 7. Willi Wülbeck | FRG | 1:47.6s | q |
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| Heat 3 | time | & | | 1. Luciano Sušanj | YUG | 1:48.4 | Q | | 2. Dieter Fromm | GDR | 1:48.6 | Q | | 3. Markku Taskinen | FIN | 1:48.7 | Q | | 4. Sven-Erik Nielsen |  DEN | 1:48.9 | | | 5. Ján Šišovský | TCH | 1:48.9 | | | 6. Stavros Mermingis |  GRE | 1:49.8 | | | 7. Sven-Johan Svendsen |  NOR | 1:50.9 | |
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| Heat 4 | time | & | | 1. Hans-Henning Ohlert | GDR | 1:49.7 | Q | | 2. Marcel Philippe | FRA | 1:49.8 | Q | | 3. Josef Schmid | FRG | 1:49.9 | Q | | 4. Pavel Litovchenko | URS | 1:50.0 | | | 5. Nicolae Onescu | ROU | 1:50.1 | | | 6. Jean Kaiser |  LUX | 1:54.2 | |
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