| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time |
|---|---|---|---|---|---|
| 1 | 714 | Falilat Ogunkoya |
NGR
|
49.96 Q | 0.231 |
| 2 | 556 | Lorraine Fenton |
JAM
|
50.05 Q PB | 0.230 |
| 3 | 415 | Anja Rücker |
GER
|
50.09 Q PB | 0.192 |
| 4 | 849 | Natalya Nazarova |
RUS
|
50.48 Q PB | 0.185 |
| 5 | 1002 | Michelle Collins |
USA
|
50.67 PB | 0.170 |
| 6 | 671 | Ana Guevara |
MEX
|
50.70 SB | 0.315 |
| 7 | 225 | Helena Fuchsová |
CZE
|
50.84 SB | 0.256 |
| 8 | 1039 | Suziann Reid |
USA
|
50.90 | 0.165 |
| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time |
|---|---|---|---|---|---|
| 1 | 26 | Cathy Freeman |
AUS
|
49.76 Q SB | 0.233 |
| 2 | 402 | Grit Breuer |
GER
|
50.16 Q SB | 0.176 |
| 3 | 375 | Katharine Merry |
GBR
|
50.21 Q PB | 0.173 |
| 4 | 841 | Olga Kotlyarova |
RUS
|
50.32 Q PB | 0.147 |
| 5 | 706 | Olabisi Afolabi |
NGR
|
50.40 PB | 0.164 |
| 6 | 715 | Charity Opara |
NGR
|
50.52 SB | 0.172 |
| 7 | 890 | Amy Mbacke Thiam |
SEN
|
50.77 NR | 0.291 |
| 8 | 1029 | Maicel Malone-Wallace |
USA
|
50.93 | 0.158 |