| Final | time | Y | | 1. Billy Konchellah | KEN | 1:43.06 CR | 25 | | 2. Peter Elliott | GBR | 1:43.41 PB | 24 | | 3. Jose Luiz Barbosa | BRA | 1:43.76 PB | 26 | | 4. Ryszard Ostrowski | POL | 1:44.59 | 26 | | 5. Faouzi Lahbi | MAR | 1:44.83 | 27 | | 6. Stephen Ole Marai | KEN | 1:44.84 PB | 24 | | 7. Slobodan Popovic | YUG | 1:45.07 PB | 24 | | 8. Tom McKean | GBR | 1:49.21 | 23 |
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| | | First 3 from each Semi and Best 2 advanced to Final. |
| Semi 1 | time | Rk. | | 1. Tom McKean | GBR | 1:44.86 | 1. | | 2. Jose Luiz Barbosa | BRA | 1:45.03 | 2. | | 3. Stephen Ole Marai | KEN | 1:45.09 | 3. | | 4. Faouzi Lahbi | MAR | 1:45.19 | 4. | | 5. Slobodan Popovic | YUG | 1:45.33 | 5. | | 6. Vladimir Graudyn | URS | 1:45.36 | 6. | | 7. Moussa Fall | SEN | 1:47.55 | 12. | | 8. Philippe Collard | FRA | 1:48.24 | 13. |
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| Semi 2 | time | Rk. | | 1. Billy Konchellah | KEN | 1:46.11 | 7. | | 2. Ryszard Ostrowski | POL | 1:46.22 | 8. | | 3. Peter Elliott | GBR | 1:46.23 | 9. | | 4. Babacar Niang | SEN | 1:46.23 | 10. | | 5. Dieudonne Kwizera | BUR | 1:46.26 | 11. | | 6. David Mack | USA | 1:48.49 | 14. | | 7. Ari Suhonen | FIN | 1:48.85 | 15. | | 8. Alvaro Silva | POR | 1:49.41 | 16. |
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| Quarter 1 | time | | 1. Stephen Ole Marai | KEN | 1:45.97 | | 2. Ryszard Ostrowski | POL | 1:46.04 | | 3. Faouzi Lahbi | MAR | 1:46.12 | | 4. Stanley Redwine | USA | 1:46.25 | | 5. William Wuyke | VEN | 1:46.38 | | 6. Robin Van Helden | NED | 1:46.69 | | 7. Luis Karin Toledo | MEX | 1:46.88 | | 8. Reda Abdenouz | ALG | 1:48.96 | | -. Getahun Ayana | ETH | DNS |
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| Quarter 2 | time | | 1. Moussa Fall | SEN | 1:44.74 | | 2. Peter Elliott | GBR | 1:44.98 | | 3. Dieudonne Kwizera | BUR | 1:45.06 | | 4. Slobodan Popovic | YUG | 1:45.15 | | 5. Vladimir Graudyn | URS | 1:45.19 | | 6. Alvaro Silva | POR | 1:45.63 | | 7. David Mack | USA | 1:45.68 | | 8. Edwin Koech | KEN | 1:46.36 |
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| Quarter 3 | time | | 1. Billy Konchellah | KEN | 1:45.53 | | 2. Philippe Collard | FRA | 1:45.89 | | 3. Tom McKean | GBR | 1:46.11 | | 4. Andrey Sudnik | URS | 1:46.48 | | 5. Ibrahim Okash | SOM | 1:47.00 | | 6. Ismael Youssef | QAT | 1:49.26 | | -. Gert Kilbert | SUI | DNF | | -. Pablo Squella | CHI | DNS |
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| Quarter 4 | time | | 1. Babacar Niang | SEN | 1:45.81 | | 2. Jose Luiz Barbosa | BRA | 1:46.07 | | 3. Ari Suhonen | FIN | 1:46.18 | | 4. Tony Morrell | GBR | 1:46.25 | | 5. Peter Braun | FRG | 1:48.53 | | 6. Luc Bernaert | BEL | 1:49.06 | | 7. Martin Enholm | SWE | 1:49.17 | | 8. Johnny Gray | USA | 1:49.50 |
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| Heat 1 | time | | 1. Faouzi Lahbi | MAR | 1:46.07 | | 2. Dieudonne Kwizera | BUR | 1:46.27 | | 3. Andrey Sudnik | URS | 1:46.29 | | 4. Jose Luiz Barbosa | BRA | 1:46.31 | | 5. Ibrahim Okash | SOM | 1:46.61 | | 6. Chern Srichudano | THA | 1:50.37 | | 7. Rob Druppers | NED | 1:50.58 | | 8. Semi Vuetibau | FIJ | 1:58.58 |
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| Heat 2 | time | | 1. Johnny Gray | USA | 1:46.53 | | 2. Peter Elliott | GBR | 1:46.63 | | 3. Marai Stephen Ole | KEN | 1:46.91 | | 4. Robin Van Helden | NED | 1:46.98 | | 5. Luc Bernaert | BEL | 1:47.48 | | 6. Pablo Squella | CHI | 1:47.48 | | 7. Manlio Molinari | SMR | 1:53.41 |
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| Heat 3 | time | | 1. Billy Konchellah | KEN | 1:47.98 | | 2. Moussa Fall | SEN | 1:48.01 | | 3. Ryszard Ostrowski | POL | 1:48.07 | | 4. Alvaro Silva | POR | 1:48.19 | | 5. Gert Kilbert | SUI | 1:48.48 | | 6. Luis Migueles | ARG | 1:49.52 | | -. Agberto Guimaraes | BRA | DNS | | -. Mohamed Hossain Milzer | BAN | DNS |
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| Heat 4 | time | | 1. Philippe Collard | FRA | 1:47.44 | | 2. Stanley Redwine | USA | 1:47.64 | | 3. Tom McKean | GBR | 1:47.71 | | 4. Ari Suhonen | FIN | 1:47.81 | | 5. Luis Karin Toledo | MEX | 1:48.05 | | 6. Ismael Youssef | QAT | 1:48.73 | | 7. John Chappory | GIB | 1:54.32 |
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| Heat 5 | time | | 1. Peter Braun | FRG | 1:47.96 | | 2. Tony Morrell | GBR | 1:48.18 | | 3. Martin Enholm | SWE | 1:48.63 | | 4. David Mack | USA | 1:49.47 | | 5. Augustin Ntamihanga | RWA | 1:50.69 | | 6. Simon Hoogewerf | CAN | 1:51.13 | | -. Joaquim Cruz | BRA | DNS |
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| Heat 6 | time | | 1. Slobodan Popovic | YUG | 1:47.42 | | 2. Babacar Niang | SEN | 1:47.46 | | 3. Edwin Koech | KEN | 1:47.56 | | 4. William Wuyke | VEN | 1:47.59 | | 5. Vladimir Graudyn | URS | 1:47.75 | | 6. Getahun Ayana | ETH | 1:49.22 | | 7. Reda Abdenouz | ALG | 1:49.22 | | -. Syed Meesaq Rizvi | PAK | DNS |
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