| Order / Lane | Bib | ATHLETE | COUNTRY | PB | SB 2008 | 
|---|---|---|---|---|---|
| 1 | 428 | Akihiro Urano |  JPN | 47.41 | 48.07 | 
| 2 | 693 | Awadelkarim Makki |  SUD | 46.98 | 46.98 | 
| 3 | 143 | Petr Vanek |  CZE | 46.88 | 46.88 | 
| 4 | 38 | Juan Lewis |  BAH | 46.78 | 46.78 | 
| 5 | 424 | Hideyuki Hirose |  JPN | 47.26 | 47.26 | 
| 6 | 335 | Kirani JAMES |  GRN | 46.53 | 46.53 | 
| 7 | 809 | Marcus Boyd |  USA | 46.02 | 46.02 | 
| 8 | 488 | Janis Leitis |  LAT | 46.83 | 46.83 | 
| 9 | 344 | Marcell Deák Nagy |  HUN | 47.37 | 47.37 | 
| Order / Lane | Bib | ATHLETE | COUNTRY | PB | SB 2008 | 
|---|---|---|---|---|---|
| 2 | 328 | Pétros KiriakÃdis |  GRE | 46.57 | 46.57 | 
| 3 | 658 | Vladimir Krasnov |  RUS | 46.55 | 46.55 | 
| 4 | 368 | Brian GREGAN |  IRL | 46.70 | 46.70 | 
| 5 | 446 | Silvester Kirwa Meli |  KEN | 46.84 | 47.34 | 
| 6 | 304 | Niklas Zender |  GER | 46.18 | 46.18 | 
| 7 | 272 | Nigel Levine |  GBR | 46.31 | 47.38 | 
| 8 | 469 | Ismail M.H Alsabani |  KSA | 46.33 | 46.33 | 
| 9 | 751 | Zwede Hewitt |  TTO | 46.04 | 46.63 | 
| Order / Lane | Bib | ATHLETE | COUNTRY | PB | SB 2008 | 
|---|---|---|---|---|---|
| 2 | 553 | Mauritz KÃ¥shagen |  NOR | 47.75 | 47.75 | 
| 3 | 2 | Curtis Kock |  AHO | 47.42 | 47.42 | 
| 4 | 334 | Rondell Bartholomew |  GRN | 46.86 | 46.86 | 
| 5 | 844 | O'Neal Wilder |  USA | 45.54 | 45.54 | 
| 6 | 19 | Kurt Mulcahy |  AUS | 46.03 | 46.47 | 
| 7 | 91 | Tyler Daniel Harper |  CAN | 47.14 | 47.14 | 
| 8 | 619 | Juan Carlos Vega |  PUR | 46.83 | 46.83 | 
| 9 | 274 | Jordan McGrath |  GBR | 46.54 | 46.54 |