| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time | 
|---|---|---|---|---|---|
| 1 | 715 | Charity Opara | 
                                         
                                        NGR
                                     | 
                                    50.82 Q SB | 0.265 | 
| 2 | 375 | Katharine Merry | 
                                         
                                        GBR
                                     | 
                                    50.86 Q | 0.210 | 
| 3 | 225 | Helena Fuchsová | 
                                         
                                        CZE
                                     | 
                                    51.18 Q | 0.172 | 
| 4 | 1039 | Suziann Reid | 
                                         
                                        USA
                                     | 
                                    51.19 Q | 0.148 | 
| 5 | 564 | Claudine Williams | 
                                         
                                        JAM
                                     | 
                                    51.40 SB | 0.263 | 
| 6 | 798 | Otilia Ruicu-Esanu | 
                                         
                                        ROU
                                     | 
                                    51.86 | 0.239 | 
| 7 | 185 | Mireille Nguimgo | 
                                         
                                        CMR
                                     | 
                                    51.98 | 0.167 | 
| 8 | 132 | Foy Williams | 
                                         
                                        CAN
                                     | 
                                    54.34 | 0.329 | 
| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time | 
|---|---|---|---|---|---|
| 1 | 415 | Anja Rücker | 
                                         
                                        GER
                                     | 
                                    50.62 Q PB | 0.214 | 
| 2 | 1002 | Michelle Collins | 
                                         
                                        USA
                                     | 
                                    50.75 Q PB | 0.171 | 
| 3 | 556 | Lorraine Fenton | 
                                         
                                        JAM
                                     | 
                                    51.02 Q | 0.179 | 
| 4 | 841 | Olga Kotlyarova | 
                                         
                                        RUS
                                     | 
                                    51.21 Q | 0.242 | 
| 5 | 184 | Claudine Komgang | 
                                         
                                        CMR
                                     | 
                                    51.73 | 0.206 | 
| 6 | 23 | Susan Andrews | 
                                         
                                        AUS
                                     | 
                                    52.05 | 0.257 | 
| 7 | 517 | Karen Shinkins | 
                                         
                                        IRL
                                     | 
                                    52.08 | 0.230 | 
| 8 | 154 | Yuxiang Chen | 
                                         
                                        CHN
                                     | 
                                    52.93 | 0.199 | 
| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time | 
|---|---|---|---|---|---|
| 1 | 402 | Grit Breuer | 
                                         
                                        GER
                                     | 
                                    50.41 Q | 0.197 | 
| 2 | 706 | Olabisi Afolabi | 
                                         
                                        NGR
                                     | 
                                    50.47 Q SB | 0.169 | 
| 3 | 26 | Cathy Freeman | 
                                         
                                        AUS
                                     | 
                                    50.49 Q | 0.197 | 
| 4 | 671 | Ana Guevara | 
                                         
                                        MEX
                                     | 
                                    51.08 Q | 0.201 | 
| 5 | 346 | Francine Landre | 
                                         
                                        FRA
                                     | 
                                    52.07 | 0.207 | 
| 6 | 150 | Kaltouma Nadjina | 
                                         
                                        CHA
                                     | 
                                    52.47 | 0.325 | 
| 7 | 536 | Virna De Angeli | 
                                         
                                        ITA
                                     | 
                                    52.78 | 0.222 | 
| 8 | 769 | Carmo Tavares | 
                                         
                                        POR
                                     | 
                                    52.86 | 0.218 | 
| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time | 
|---|---|---|---|---|---|
| 1 | 714 | Falilat Ogunkoya | 
                                         
                                        NGR
                                     | 
                                    50.59 Q | 0.239 | 
| 2 | 849 | Natalya Nazarova | 
                                         
                                        RUS
                                     | 
                                    50.77 Q | 0.180 | 
| 3 | 1029 | Maicel Malone-Wallace | 
                                         
                                        USA
                                     | 
                                    50.82 Q SB | 0.190 | 
| 4 | 890 | Amy Mbacke Thiam | 
                                         
                                        SEN
                                     | 
                                    51.05 Q | 0.224 | 
| 5 | 416 | Uta Rohländer-Fromm | 
                                         
                                        GER
                                     | 
                                    51.45 | 0.192 | 
| 6 | 368 | Donna Fraser | 
                                         
                                        GBR
                                     | 
                                    52.01 | 0.184 | 
| 7 | 223 | Jitka Burianová | 
                                         
                                        CZE
                                     | 
                                    52.52 | 0.275 | 
| 8 | 915 | K.V.Damayanthi Dharsha | 
                                         
                                        SRI
                                     | 
                                    53.33 | 0.155 |