| Order / Lane | Bib | ATHLETE | COUNTRY | PB | SB 2007 | 
|---|---|---|---|---|---|
| 1 | 413 | Adel Al-Nasser |  KSA | 53.48 | 53.48 | 
| 2 | 725 | William Wynne |  USA | 53.41 | 53.41 | 
| 3 | 40 | Nathan Arnett |  BAH | 52.30 | 52.30 | 
| 4 | 234 | Michael Baker |  GBR | 52.20 | 52.20 | 
| 5 | 553 | PC Beneke |  RSA | 50.74 | 50.74 | 
| 6 | 402 | Julius Rotich Oletygor |  KEN | 52.34 | 52.34 | 
| 7 | 584 | Nikita Andriyanov |  RUS | 52.40 | 52.40 | 
| 8 | 702 | Ihor Shyrokyy |  UKR | 53.34 | 53.34 | 
| Order / Lane | Bib | ATHLETE | COUNTRY | PB | SB 2007 | 
|---|---|---|---|---|---|
| 1 | 84 | Gabriel El Hanbli |  CAN | 52.86 | 52.86 | 
| 2 | 132 | Amaurys R. Valle |  CUB | 52.83 | 52.83 | 
| 3 | 397 | Boniface Linga Mutunga |  KEN | 52.53 | 52.53 | 
| 4 | 380 | Tatsuhiko Mizuno |  JPN | 52.69 | 52.69 | 
| 5 | 724 | Reginald Wyatt |  USA | 51.69 | 51.69 | 
| 6 | 559 | Cornel Fredericks |  RSA | 50.75 | 50.75 | 
| 7 | 410 | Hamada Al-Bishi |  KSA | 52.57 | 52.57 | 
| 8 | 367 | Dwayne Extol |  JAM | 53.45 | 53.45 |