| POS | ATHLETE | COUNTRY | MARK | Reaction Time | 
|---|---|---|---|---|
| 1 | Nezha Bidouane |  MAR | 55.38 Q | |
| 2 | Kim Batten |  USA | 56.28 Q | |
| 3 | Andrea Blackett |  BAR | 56.31 | |
| 4 | Sinead Dudgeon |  GBR | 57.82 | |
| 5 | Mary-Estelle Kapalu |  VAN | 1:02.68 | |
| Natalya Chulkova |  RUS | DNF | ||
| Karlene Haughton |  CAN | DNS | 
| POS | ATHLETE | COUNTRY | MARK | Reaction Time | 
|---|---|---|---|---|
| 1 | Daimà PernÃa |  CUB | 55.53 Q | |
| 2 | Tasha Danvers |  GBR | 55.68 Q | |
| 3 | Yuliya Pechonkina |  RUS | 56.11 | |
| 4 | Catherine Scott |  JAM | 56.17 | |
| 5 | Tetyana Debelaya |  UKR | 57.33 | |
| 7 | Cherry |  MYA | 1:00.81 | |
| Heike Meissner |  GER | DQ | 
| POS | ATHLETE | COUNTRY | MARK | Reaction Time | 
|---|---|---|---|---|
| 1 | Deon Hemmings |  JAM | 55.44 Q | |
| 2 | Tetiana Tereschuk-Antipova |  UKR | 56.27 Q | |
| 3 | Jana Pittman |  AUS | 56.76 | |
| 4 | Anna Jesien |  POL | 57.36 | |
| 5 | Monika Niederstatter |  ITA | 58.02 | |
| 6 | Mame Tacko Diouf |  SEN | 58.65 | 
| POS | ATHLETE | COUNTRY | MARK | Reaction Time | 
|---|---|---|---|---|
| 1 | Sandra Glover |  USA | 55.76 Q | |
| 2 | Ulrike Urbansky |  GER | 55.93 Q | |
| 3 | Natalya Torshina-Alimzhanova |  KAZ | 56.38 | |
| 4 | Susan Smith-Walsh |  IRL | 57.08 | |
| 5 | Irena Zauna |  LAT | 57.79 | |
| 6 | Lauren Poetschka |  AUS | 58.06 | |
| 7 | HrÃsoula Goudenoúdi |  GRE | 1:01.59 | 
| POS | ATHLETE | COUNTRY | MARK | Reaction Time | 
|---|---|---|---|---|
| 1 | Irina Privalova |  RUS | 55.89 Q | |
| 2 | Gudrún Arnardóttir |  ISL | 56.30 Q | |
| 3 | Ionela Târlea |  ROU | 56.40 q | |
| 4 | Tonja Buford-Bailey |  USA | 57.02 | |
| 5 | Keri Maddox |  GBR | 57.44 | |
| 6 | Stephanie Price |  AUS | 58.81 | |
| 7 | Patrina Allen |  JAM | 59.36 |