| Order / Lane | ATHLETE | COUNTRY | PB | SB 2010 | 
|---|---|---|---|---|
| Ashley Arroyo | 
                             
                            PUR
                         | 
                            44.08 | 44.08 | |
| Rahma Bouslama | 
                             
                            TUN
                         | 
                            40.88 | 40.88 | |
| Volha Hladchanka | 
                             
                            BLR
                         | 
                            42.71 | 42.71 | |
| Sasha Gaye Marston | 
                             
                            JAM
                         | 
                            46.07 | 46.07 | |
| Sarah Tolson | 
                             
                            USA
                         | 
                            45.26 | 45.26 | 
| Order / Lane | ATHLETE | COUNTRY | PB | SB 2010 | 
|---|---|---|---|---|
| Shanice Craft | 
                             
                            GER
                         | 
                            54.98 | 54.98 | |
| Subenrat Insaeng | 
                             
                            THA
                         | 
                            47.83 | 47.83 | |
| Yelim Jeong | 
                             
                            KOR
                         | 
                            45.10 | 45.10 | |
| Simoné Meyer | 
                             
                            RSA
                         | 
                            51.05 | 49.07 | |
| EvangelÃa Psaráki | 
                             
                            GRE
                         | 
                            47.54 | 47.54 | |
| Viktoriya Sadova | 
                             
                            RUS
                         | 
                            51.14 | 51.14 | |
| Heidi Schmidt | 
                             
                            SWE
                         | 
                            47.20 | 47.20 | |
| Krisztina Váradi | 
                             
                            HUN
                         | 
                            51.71 | 51.71 |