| 1 | Olesya Zykina | RUS | 51,75 | Q | |
| 2 | Antonina Yefremova | UKR | 51,79 | Q | |
| 3 | Moushaumi Robinson | USA | 51,85 | Q | |
| 4 | Racheal Nachula | ZAM | 53,30 | NR | |
| 5 | Makelesi Batimala | FIJ | 54,23 | ||
| Christy Ekpukhon Ihunaegbo | NGR | DNS |
| 1 | Natalya Nazarova | RUS | 51,62 | Q | |
| 2 | Shareese Woods | USA | 51,87 | Q | |
| 3 | Angela Morosanu | ROM | 52,83 | Q | |
| 4 | Zuzana Hejnová | CZE | 53,16 | ||
| 5 | Amantle Montsho | BOT | 53,21 | ||
| 6 | Nataliya Pyhyda | UKR | 53,33 |