| Order / Lane | ATHLETE | COUNTRY | PB | SB 2010 |
|---|---|---|---|---|
| Novlene Williams-Mills |
JAM
|
49.63 | 50.04 | |
| Monica Hargrove |
USA
|
50.39 | 51.16 | |
| Shericka Williams |
JAM
|
49.32 | 50.04 | |
| Allyson FELIX |
USA
|
49.59 | 50.15 | |
| Christine Ohuruogu |
GBR
|
49.61 | 50.88 | |
| Christine Day |
JAM
|
50.85 | 52.43 | |
| Debbie Dunn |
USA
|
49.64 | 49.64 | |
| Amantle MONTSHO |
BOT
|
49.54 | 49.89 |