| Final 18.25h | time | L | | 1. Avard Moncur |  BAH | 44.64s | 4 | | 2. Ingo Schultz |  GER | 44.87s | 6 | | 3. Gregory Haughton |  JAM | 44.98s | 5 | | 4. Antonio Pettigrew |  USA | 44.99s | 7 | | 5. Eric Milazar |  MRI | 45.13s | 1 | | 6. Hamdan Al-Bishi |  KSA | 45.23s | 2 | | 7. Alleyne Francique |  GRN | 46.23s | 8 | | -. Robert Mackowiak |  POL | DNF | 3 |
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| Semi 1 15.50h | time | L | | 1. Avard Moncur | BAH | 44.89s | 5 | | 2. Antonio Pettigrew | USA | 45.00s | 4 | | 3. Alleyne Francique | GRN | 45.11s | 3 | | 4. Mark Richardson |  GBR | 45.14s | 8 | | 5. Marc Raquil |  FRA | 45.22s | 1 | | 6. David Canal |  ESP | 45.50s | 6 | | 7. Anderson Santos |  BRA | 45.83s | 2 | | 8. Piotr Rysiukiewicz | POL | 46.12s | 7 |
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| Semi 2 15.57h | time | L | | 1. Gregory Haughton | JAM | 44.83s | 3 | | 2. Eric Milazar | MRI | 44.92s | 2 | | 3. Hamdan O. Al-Bishi | KSA | 4....s | 5 | | 4. Leonard Byrd | USA | 45.39s | 6 | | 5. Shane Niemi |  CAN | 45.91s | 8 | | 6. Hendrick Mokganyetsi |  RSA | 45.99s | 4 | | 7. Piotr Dlugosielski | POL | 46.62s | 7 | | 8. Iwan Thomas | GBR | 46.72s | 1 |
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| Semi 3 16.04h | time | L | | 1. Ingo Schultz | GER | 44.66s | 4 | | 2. Robert Mackowiak | POL | 44.84s | 8 | | 3. Malik Louahla |  ALG | 45.14s | 3 | | 4. Jerome Young | USA | 45.43s | 2 | | 5. MArcus La Grange | RSA | 45...s | 6 | | 6. Jimisola Laursen |  SWE | 45.62s | 7 | | 7. Sugath Thilakaratne |  SRI | 46.69s | 1 | | -. Michael McDonald | JAM | DNF | 5 |
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| Heat 1 9.45h | time | L | | 1. Avard Moncur | BAH | 44.88s | 2 | | 2. Marcus LaGrange | RSA | 45.20s | 3 | | 3. Robert Mackowiak | POL | 45.27s | 4 | | 4. Anderson Santos | BRA | 45.47s | 7 | | 5. Karel Blaha |  CZE | 45.82s | 6 | | 6. Tomas Coman |  IRL | 45.90s | 5 | | -. Yevgeniy Zyukov |  UKR | DQ |
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| Heat 2 9.51h | time | L | | 1. Alleyne Francique | GRN | 45.66s | 3 | | 2. Mark Richardson | GBR | 45.66s | 5 | | 3. Piotr Rysiukiewicz | POL | 45.92s | 2 | | 4. Ezra Sambu |  KEN | 46.18s | 6 | | 5. AminBadany Goma'a |  EGY | 46.29s | 7 | | 6. Alessandro Attene |  ITA | 46.56s | 8 | | 7. Kenji Tabata |  JPN | 46.68s | 1 | | 8. Carlton Fortune |  SUR | 52.69s | 4 |
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| Heat 3 9.57h | time | L | | 1. HamdanO. Al-Bishi | KSA | 45.00s | 4 | | 2. Michael McDonald | JAM | 45.02s | 5 | | 3. Sugath Thilakaratne | SRI | 45.41s | 3 | | 4. Jerome Young | USA | 45.57s | 1 | | 5. Ato Modibo |  TRI | 45.82s | 8 | | 6. Takahiko Yamamura | JPN | 47.22s | 2 | | 7. Alvaro James |  CRC | 47.46s | 7 | | 8. Mohamed Youba Ould |  MTN | 47.87s | 6 |
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| Heat 4 10.03h | time | L | | 1. Antonio Pettigrew | USA | 45.74s | 1 | | 2. Eric Milazar | MRI | 45.94s | 6 | | 3. Piotr Dlugosielski | POL | 46.49s | 2 | | 4. Sanjay Ayre | JAM | 46.96s | 4 | | 5. Adriaan Botha | RSA | 47.32s | 7 | | 6. Kenmore Hughes |  ANT | 48.18s | 8 | | 7. MeshaalSaad Al-Harbi |  KUW | 48.19s | 3 | | -. Arnold Payne |  ZIM | DNF | 5 |
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| Heat 5 10.09h | time | L | | 1. Gregory Haughton | JAM | 45.54s | 6 | | 2. David Canal | ESP | 45.60s | 8 | | 3. Iwan Thomas | GBR | 45.92s | 5 | | 4. Christopher Brown | BAH | 46.01s | 4 | | 5. Sunday Bada |  NGR | 46.12s | 3 | | 6. FlaviodeOliveira Godoy | BRA | 46.13s | 1 | | 7. AbidinMuhamad Zainal |  MAS | 46.46s | 7 | | 8. Kerth Gumbs |  AIA | 57.83s | 2 |
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| Heat 6 10.15h | time | L | | 1. Ingo Schultz | GER | 45.11s | 4 | | 2. Leonard Byrd | USA | 45.35s | 3 | | 3. Shane Niemi | CAN | 45.41s | 1 | | 4. Jimisola Laursen | SWE | 45.54s | 6 | | 5. Rohan Kumara | SRI | 46.46s | 7 | | 6. Sofiane Labidi |  TUN | 47.03s | 2 | | 7. William Hernandez |  VEN | 47.26s | 5 | | 8. Bheki Malima |  SWZ | 49.61s | 8 |
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| Heat 7 10.21h | time | L | | 1. Malik Louahla | ALG | 45.13s | 8 | | 2. Hendrick Mokganyetsi | RSA | 45.15s | 7 | | 3. Marc Raquil | FRA | 45.55s | 1 | | 4. Benjamin Youla |  CGO | 45.92s | 5 | | 5. Jamie Baulch | GBR | 46.15s | 2 | | 6. Dmitriy Golovastov |  RUS | 46.22s | 4 | | 7. Jun Osakada | JPN | 46.86s | 3 | | 8. Emmanuel DeLorenzi |  MON | 55.57s | 6 |
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