| Order / Lane | Bib | ATHLETE | COUNTRY | PB | SB 1999 | 
|---|---|---|---|---|---|
| 1 | 1005 | Sandra Glover |  USA | 53.68 | 53.68 | 
| 2 | 904 | Michelle Johnson |  USA | 54.15 | 54.15 | 
| 3 | 557 | Deon Hemmings |  JAM | 52.82 | 53.30 | 
| 4 | 657 | Nezha Bidouane |  MAR | 52.96 | 53.05 | 
| 5 | 211 | Daimà PernÃa |  CUB | 53.44 | 53.44 | 
| 6 | 65 | Andrea Blackett |  BAR | 53.74 | 53.83 | 
| 7 | 982 | Tetiana Tereschuk-Antipova |  UKR | 53.40 | 53.46 | 
| 8 | 566 | Debbie-Ann Parris-Thymes |  JAM | 53.97 | 54.55 |