| Order / Lane | ATHLETE | COUNTRY | PB | SB 2012 |
|---|---|---|---|---|
| Christine Ohuruogu |
GBR
|
49.61 | 49.70 | |
| Marie Gayot |
FRA
|
51.60 | 51.60 | |
| Deedee Trotter |
USA
|
49.64 | 49.72 | |
| Amantle Montsho |
BOT
|
49.54 | 49.54 | |
| Rosemarie Whyte |
JAM
|
49.84 | 50.08 | |
| Muriel Hurtis |
FRA
|
51.41 | 52.11 | |
| Novlene Williams-Mills |
JAM
|
49.63 | 49.78 | |
| Francena McCorory |
USA
|
50.06 | 50.06 |