| Order / Lane | Bib | ATHLETE | COUNTRY | PB | SB 2004 | 
|---|---|---|---|---|---|
| 1 | 429 | Morgan Carlington |  JAM | 47.85 | 47.85 | 
| 2 | 880 | Keith Hinnant |  USA | 47.14 | |
| 3 | 611 | Andrés RodrÃguez |  PAN | 48.22 | |
| 4 | 682 | Chris Gebhardt |  RSA | 46.50 | 46.50 | 
| 5 | 54 | Andretti Bain |  BAH | 47.35 | 47.35 | 
| 6 | 820 | Renny QUOW |  TTO | 46.60 | 46.60 | 
| 7 | 504 | Khalid H.B. Salem |  KSA | 47.48 | 47.48 | 
| 8 | 809 | Chia-Wei Chang |  TPE | 47.95 | 47.95 | 
| Order / Lane | Bib | ATHLETE | COUNTRY | PB | SB 2004 | 
|---|---|---|---|---|---|
| 2 | 593 | Cory Innes |  NZL | 47.66 | 47.66 | 
| 3 | 918 | Carlos Pérez |  VEN | 47.22 | 47.22 | 
| 4 | 31 | Ben Offereins |  AUS | 47.01 | 47.01 | 
| 5 | 269 | Teddy Atine - Venel |  FRA | 47.59 | 47.59 | 
| 6 | 576 | K.C. Gopal |  NEP | 52.60 | 52.60 | 
| 7 | 761 | Nagmeldin Ali Abubakr |  SUD | 45.22 | 45.76 | 
| 8 | 188 | Antonio Side |  DOM | 47.42 | 
| Order / Lane | Bib | ATHLETE | COUNTRY | PB | SB 2004 | 
|---|---|---|---|---|---|
| 2 | 198 | Takeshi Fujiwara |  ESA | 47.80 | 47.80 | 
| 3 | 342 | Daryl Vassallo |  GIB | ||
| 4 | 683 | Ruaan Grobler |  RSA | 47.51 | 47.51 | 
| 5 | 584 | Udomsinachi Erete |  NGR | 46.08 | 46.08 | 
| 6 | 698 | Maksim Aleksandrenko |  RUS | 46.69 | 46.69 | 
| 7 | 455 | Kazunori Ota |  JPN | 46.87 | 47.13 | 
| 8 | 841 | Wilson Lukungu Waiswa |  UGA | 47.45 | 50.00 | 
| Order / Lane | Bib | ATHLETE | COUNTRY | PB | SB 2004 | 
|---|---|---|---|---|---|
| 2 | 667 | Vasile Bobos |  ROU | 47.13 | 47.13 | 
| 3 | 136 | Cristián Reyes |  CHI | 47.88 | |
| 4 | 631 | Damian Kempa |  POL | 47.64 | 47.64 | 
| 5 | 30 | Sean Wroe |  AUS | 47.18 | 47.18 | 
| 6 | 620 | Nicholas Mangham |  PLW | ||
| 7 | 895 | LaShawn Merritt |  USA | 45.38 | 45.38 | 
| 8 | 185 | Roger Polydore |  DMA | 47.62 | 47.62 | 
| Order / Lane | Bib | ATHLETE | COUNTRY | PB | SB 2004 | 
|---|---|---|---|---|---|
| 1 | 94 | Paulo Roberto Orlando |  BRA | 46.58 | 46.58 | 
| 2 | 831 | Serdar Tamac |  TUR | 47.44 | 47.44 | 
| 3 | 758 | Manoj Pushpa Kumara |  SRI | 46.56 | 46.56 | 
| 4 | 840 | Reuben Twijukye |  UGA | ||
| 5 | 158 | Nery Brenes |  CRC | 47.90 | 47.90 | 
| 6 | 649 | Félix MartÃnez |  PUR | 47.45 | 47.45 | 
| 7 | 641 | Lukasz Pryga |  POL | 47.42 | 47.54 | 
| 8 | 242 | Antii Toivonen |  FIN | 47.90 | 47.90 | 
| Order / Lane | Bib | ATHLETE | COUNTRY | PB | SB 2004 | 
|---|---|---|---|---|---|
| 2 | 917 | José Acevedo |  VEN | 46.62 | 46.83 | 
| 3 | 414 | Claudio Licciardello |  ITA | 47.81 | 48.45 | 
| 4 | 274 | Richard Buck |  GBR | 47.31 | 47.31 | 
| 5 | 431 | Michael Gardener |  JAM | 47.80 | 47.80 | 
| 6 | 568 | Frank Puriza |  NAM | 47.57 | |
| 7 | 712 | Valentin Kruglyakov |  RUS | 46.36 | 46.36 | 
| 8 | 775 | Roman Hollý |  SVK | 47.13 | 47.49 | 
| Order / Lane | Bib | ATHLETE | COUNTRY | PB | SB 2004 | 
|---|---|---|---|---|---|
| 2 | 454 | Yudai Sasaki |  JPN | 46.85 | 46.85 | 
| 3 | 78 | Mikhail Ratnikau |  BLR | 47.38 | 47.53 | 
| 4 | 91 | Obakeng Ngwigwa |  BOT | 47.24 | 47.24 | 
| 5 | 190 | Francisco Aguirre |  ECU | 47.55 | |
| 6 | 660 | Mohamed Moussa ABDULRAHMAN |  QAT | 47.72 | 47.72 | 
| 7 | 525 | Chon Kin Sou |  MAC | 50.46 | 50.46 | 
| 8 | 163 | Željko Vincek |  CRO | 46.13 | 46.13 |