| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time | 
|---|---|---|---|---|---|
| 1 | 1181 | Cleo VanBuren |  USA | 23.96 Q | 0.229 | 
| 2 | 709 | Sally PEARSON |  AUS | 24.10 Q | 0.155 | 
| 3 | 872 | Carley Wenham |  GBR | 24.11 q | 0.177 | 
| 4 | 767 | Carline Muir |  CAN | 24.67 | 0.182 | 
| 5 | 880 | Maike Dix |  GER | 24.72 | 0.172 | 
| 6 | 821 | Eleni ARTYMATA |  CYP | 24.86 SB | 0.190 | 
| 7 | 1066 | Amanda Kotze |  RSA | 25.21 | 0.474 | 
| 8 | 802 | Yomara Hinestroza |  COL | 25.21 | 0.164 | 
| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time | 
|---|---|---|---|---|---|
| 1 | 951 | Anneisha McLaughlin-Whilby |  JAM | 23.79 Q | 0.210 | 
| 2 | 801 | Darlenis Obregón |  COL | 24.18 Q PB | 0.190 | 
| 3 | 936 | Giulia Arcioni |  ITA | 24.19 q SB | 0.176 | 
| 4 | 1075 | Yelena Khvashchevskaya |  RUS | 24.28 | 0.167 | 
| 5 | 813 | Danijela Grgic |  CRO | 24.28 PB | 0.209 | 
| 6 | 766 | Emily Johnson |  CAN | 24.62 | 0.153 | 
| 7 | 1058 | Angela Morosanu |  ROU | 24.68 | 0.173 | 
| 8 | 922 | Bianka Varga |  HUN | 24.82 | 0.161 | 
| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time | 
|---|---|---|---|---|---|
| 1 | 1159 | Courtney Champion |  USA | 23.53 Q PB | 0.161 | 
| 2 | 946 | Sherline Duncan |  JAM | 23.91 Q PB | 0.170 | 
| 3 | 1022 | Oludamola Osayomi |  NGR | 24.29 | 0.168 | 
| 4 | 735 | Tavara Rigby |  BAH | 24.36 | 0.176 | 
| 5 | 1110 | Barbora MichalÃková |  SVK | 24.52 | 0.189 | 
| 6 | 1023 | Kendal Blair |  NZL | 24.57 PB | 0.124 | 
| 7 | 959 | Ayako Kawano |  JPN | 24.63 | 0.159 | 
| 8 | 838 | Jessica Perea |  ECU | 24.95 | 0.162 |