| Order / Lane | ATHLETE | COUNTRY | PB | SB 2011 |
|---|---|---|---|---|
| Davita Prendergast |
JAM
|
50.86 | 50.86 | |
| Debbie Dunn |
USA
|
49.64 | 50.70 | |
| Denisa Rosolová |
CZE
|
50.84 | 50.84 | |
| Muriel Hurtis |
FRA
|
51.41 | 51.62 | |
| Novlene Williams-Mills |
JAM
|
49.63 | 50.05 | |
| Rosemarie Whyte |
JAM
|
49.84 | 49.84 | |
| Amantle MONTSHO |
BOT
|
49.54 | 49.56 | |
| Francena McCorory |
USA
|
50.06 | 50.24 |