| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time | 
|---|---|---|---|---|---|
| 1 | 1458 | Vicky Van Os |  RSA | 11.98 Q | |
| 2 | 1472 | Yekaterina Kuznetsova |  RUS | 11.99 Q | |
| 3 | 1067 | Ivet LALOVA-COLLIO |  BUL | 12.00 | |
| 4 | 1072 | Lindsay Wilson |  CAN | 12.09 | |
| 5 | 1205 | Anna Becker |  GER | 12.16 | |
| 6 | 1010 | Liliana Tantucci |  ARG | 12.25 SB | |
| 7 | 1145 | Lucie Martinková |  CZE | 12.35 | |
| 8 | 1374 | Chantal Hayen |  LUX | 12.49 | 
| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time | 
|---|---|---|---|---|---|
| 1 | 1310 | Kerron Stewart |  JAM | 11.79 Q | |
| 2 | 1590 | Tissilli Rogers |  USA | 11.85 Q | |
| 3 | 1410 | April Brough |  NZL | 11.94 | |
| 4 | 1609 | Wilmary Álvarez |  VEN | 12.13 | |
| 5 | 1561 | Yuliya Semenova |  UKR | 12.30 | |
| 6 | 1293 | Aoife McNeill |  IRL | 12.33 | |
| 7 | 1628 | Victoria Tjingaete |  NAM | 12.37 | |
| 8 | 1323 | Hitomi Yamamoto |  JPN | 12.46 | 
| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time | 
|---|---|---|---|---|---|
| 1 | 1580 | Allyson FELIX |  USA | 11.76 Q | |
| 2 | 1150 | Zuzana Kosová |  CZE | 11.84 Q PB | |
| 3 | 1309 | Simone Facey |  JAM | 11.84 q | |
| 4 | 1031 | Utica Edgecombe |  BAH | 11.91 q | |
| 5 | 1064 | Petya Borisova |  BUL | 12.17 | |
| 6 | 1188 | Magali Evrard |  FRA | 12.21 | |
| 7 | 1085 | Mei Leng |  CHN | 12.30 | |
| 8 | 1531 | Ya-Wen Chu |  TPE | 12.49 |