| Order / Lane | Bib | ATHLETE | COUNTRY | PB | SB 2008 | 
|---|---|---|---|---|---|
| 2 | 77 | Alyssa Johnson |  CAN | 55.14 | 55.14 | 
| 3 | 350 | Latoya McDermott |  JAM | 53.48 | 54.62 | 
| 4 | 430 | Folasade Abugan |  NGR | 50.89 | 50.89 | 
| 5 | 716 | Lanie Whittaker |  USA | 53.25 | 53.25 | 
| 6 | 639 | Britany St.Louis |  TTO | 53.20 | 53.20 | 
| 7 | 7 | Angeline BLACKBURN |  AUS | 53.82 | 53.82 | 
| 8 | 544 | Aleksandra Bulanova |  RUS | 53.07 | 53.51 | 
| 9 | 607 | Moa HJELMER |  SWE | 54.15 | 54.15 | 
| Order / Lane | Bib | ATHLETE | COUNTRY | PB | SB 2008 | 
|---|---|---|---|---|---|
| 2 | 34 | Mara Weekes |  BAR | 54.49 | 55.34 | 
| 3 | 674 | Olha Zemlyak |  UKR | 53.69 | 53.69 | 
| 4 | 720 | Racheal Nachula |  ZAM | 51.39 | 51.39 | 
| 5 | 119 | Susana A. Clement |  CUB | 52.24 | 53.37 | 
| 6 | 294 | Natália Zsigovics |  HUN | 54.53 | 54.53 | 
| 7 | 249 | Fabienne Kohlmann |  GER | 53.68 | 53.85 | 
| 8 | 646 | Meliz Redif |  TUR | 53.47 | 53.47 | 
| 9 | 78 | Natalie Geiger |  CAN | 54.82 | 55.13 | 
| Order / Lane | Bib | ATHLETE | COUNTRY | PB | SB 2008 | 
|---|---|---|---|---|---|
| 2 | 339 | Chantel MALONE |  IVB | 54.58 | 54.58 | 
| 3 | 610 | Josefin Magnusson |  SWE | 54.93 | 54.93 | 
| 4 | 403 | Olesea Cojuhari |  MDA | 53.82 | 53.82 | 
| 5 | 201 | Bérénice Manimba |  FRA | 53.83 | 53.83 | 
| 6 | 677 | Jessica BEARD |  USA | 51.09 | 51.09 | 
| 7 | 653 | Yuliya Baraley |  UKR | 52.40 | 52.40 | 
| 8 | 529 | Liliya Gafiyatullina |  RUS | 53.08 | 53.08 | 
| 9 | 407 | Karla Dueñas |  MEX | 53.73 | 53.73 |