| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time |
|---|---|---|---|---|---|
| 1 | 545 | Melaine Walker |
JAM
|
53.26 Q SB | 0.183 |
| 2 | 913 | Josanne Lucas |
TTO
|
53.98 Q NR | 0.190 |
| 3 | 759 | Angela Morosanu |
ROU
|
54.15 q | 0.218 |
| 4 | 218 | Xiaoxiao Huang |
CHN
|
55.40 SB | 0.178 |
| 5 | 796 | Natalya Ivanova |
RUS
|
56.08 | 0.180 |
| 6 | 1027 | Sheena Tosta |
USA
|
56.31 | 0.133 |
| 7 | 680 | Muizat Ajoke Odumosu |
NGR
|
56.80 | 0.193 |
| 8 | 138 | Elodie Ouédraogo |
BEL
|
57.58 | 0.169 |
| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time |
|---|---|---|---|---|---|
| 1 | 543 | Kaliese Spencer |
JAM
|
54.37 Q | 0.180 |
| 2 | 947 | Anastasiya Rabchenyuk |
UKR
|
54.49 Q SB | 0.188 |
| 3 | 1040 | Tiffany Williams |
USA
|
54.79 q | 0.167 |
| 4 | 712 | Anna Jesien |
POL
|
54.82 | 0.183 |
| 5 | 785 | Elena Churakova |
RUS
|
56.11 | 0.157 |
| 6 | 614 | Ieva Zunda |
LAT
|
56.66 | 0.209 |
| 7 | 394 | Perri Shakes-Drayton |
GBR
|
57.57 | 0.177 |
| 678 | Amaka Ogoegbunam |
NGR
|
DQ | 0.163 |
| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time |
|---|---|---|---|---|---|
| 1 | 982 | Lashinda Demus |
USA
|
54.25 Q | 0.162 |
| 2 | 777 | Natalya Antyukh |
RUS
|
54.86 Q | 0.176 |
| 3 | 547 | Nickiesha Wilson |
JAM
|
54.89 SB | 0.247 |
| 4 | 283 | Zuzana HEJNOVÁ |
CZE
|
54.99 | 0.149 |
| 5 | 189 | Vania Stambolova |
BUL
|
56.12 | 0.218 |
| 6 | 380 | Eilidh Doyle |
GBR
|
56.21 | 0.154 |
| 7 | 293 | Sara Slott PETERSEN |
DEN
|
56.99 | 0.171 |
| 8 | 428 | Jonna Tilgner |
GER
|
57.11 | 0.179 |