| Order / Lane | Bib | ATHLETE | COUNTRY | PB | SB 2005 | 
|---|---|---|---|---|---|
| 1 | 341 | Timothy Benjamin |  GBR | 44.75 | 44.75 | 
| 2 | 34 | John Steffensen |  AUS | 45.31 | 45.31 | 
| 3 | 1039 | Jeremy Wariner |  USA | 44.00 | 44.20 | 
| 4 | 133 | Tyler Christopher |  CAN | 44.69 | 44.69 | 
| 5 | 1042 | Darold Williamson |  USA | 44.27 | 44.27 | 
| 6 | 503 | Brandon Simpson |  JAM | 44.76 | 44.83 | 
| 7 | 1023 | Andrew Rock |  USA | 44.66 | 44.70 | 
| 8 | 49 | Chris Brown |  BAH | 44.89 | 44.89 |