| Final 15.08 11:10 | Team | time | L | Rk. | | 1. Britta Steffen | GER | 53.12s | 7 | 2. 6. | | 2. Lisbeth Trickett | AUS | 53.16s | 8 | 6. 8. | | 3. Natalie Coughlin | USA | 53.39s | 4 | 4. 1. | | 4. Hanna-Maria Seppala | FIN | 53.97s | 6 | 1. 3. | | 5. Jeanette Ottesen | DEN | 54.06s | 1 | 9. 7. | | 6. Yingwen Zhu | CHN | 54.21s | 3 | 7. 4. | | 6. Marleen Veldhuis | NED | 54.21s | 5 | 3. 2. | | 8. Francesca Halsall | GBR | 54.29s | 2 | 5. 5. |
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| Semi 1 14.08 10:10 | Team | time | L | Rk. | | 1. Natalie Coughlin | USA | 53.70s | 5 | 1. | | 2. Yingwen Zhu | CHN | 53.84s | 6 | 3. | | 3. Britta Steffen | GER | 53.96s | 4 | 6. | | 4. Lisbeth Trickett | AUS | 54.10s | 3 | 8. | | 5. Josefin Lillhage | SWE | 54.59s | 2 | 11. | | 6. Lacey Nymeyer | USA | 54.74s | 1 | 12. | | 7. Petra Dallmann | GER | 55.05s | 8 | 13. | | 8. Aleksandra Gerasimenya | BLR | 55.31s | 7 | 14. |
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| Semi 2 14.08 10:14 | Team | time | L | Rk. | | 1. Marleen Veldhuis | NED | 53.81s | 5 | 2. | | 2. Hanna-Maria Seppala | FIN | 53.84s | 4 | 3. | | 3. Francesca Halsall | GBR | 53.94s | 3 | 5. | | 4. Jeanette Ottesen | DEN | 54.05s | 2 | 7. | | 5. Malia Metella | FRA | 54.20s | 7 | 9. | | 6. Cate Campbell | AUS | 54.54s | 1 | 10. | | 7. Erica Morningstar | CAN | 55.36s | 8 | 15. | | -. Jiaying Pang | CHN | DQ | 6 | |
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| Heat 7 13.08 18:51 | Team | time | L | Rk. | | 1. Natalie Coughlin | USA | 53.82s | 5 | 4. | | 2. Lisbeth Trickett | AUS | 53.99s | 4 | 6. | | 3. Yingwen Zhu | CHN | 54.01s | 7 | 7. | | 4. Malia Metella | FRA | 54.12s | 3 | 11. | | 5. Erica Morningstar | CAN | 54.66s | 6 | 15. | | 6. Julia Wilkinson | CAN | 54.70s | 1 | 16. | | 7. Tatiana Barbosa | BRA | 55.01s | 8 | 19. | | -. Caitlin McClatchey | GBR | | 2 | |
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| Heat 6 13.08 18:48 | Team | time | L | Rk. | | 1. Hanna-Maria Seppala | FIN | 53.60s | 3 | 1. | | 2. Britta Steffen | GER | 53.67s | 4 | 2. | | 3. Marleen Veldhuis | NED | 53.76s | 5 | 3. | | 4. Jiaying Pang | CHN | 54.01s | 6 | 7. | | 5. Josefin Lillhage | SWE | 54.07s | 2 | 10. | | 6. Petra Dallmann | GER | 54.70s | 7 | 17. | | 7. Agata Ewa Korc | POL | 55.14s | 1 | 20. | | 8. Lize-Mari Retief | RSA | 55.17s | 8 | 21. |
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| Heat 5 13.08 18:45 | Team | time | L | Rk. | | 1. Francesca Halsall | GBR | 53.93s | 6 | 5. | | 2. Aleksandra Gerasimenya | BLR | 54.52s | 7 | 12. | | 3. Cate Campbell | AUS | 54.55s | 4 | 13. | | 4. Lacey Nymeyer | USA | 54.62s | 3 | 14. | | 5. Alena Popchanka | FRA | 54.86s | 2 | 18. | | 6. Martina Moravcova | SVK | 55.20s | 1 | 23. | | 7. Inge Dekker | NED | 55.23s | 5 | 24. | | 8. Jana Klusackova | CZE | 55.92s | 8 | 31. |
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| Heat 4 13.08 18:41 | Team | time | L | Rk. | | 1. Jeanette Ottesen | DEN | 54.04s | 5 | 9. | | 2. Anna Gostomelsky | ISR | 55.18s | 3 | 22. | | 3. Anastasia Aksenova | RUS | 55.29s | 4 | 25. | | 4. Darya Stepanyuk | UKR | 55.51s | 8 | 27. | | 5. Arlene Iradie Semeco Arismendi | VEN | 55.70s | 2 | 30. | | 6. Triin Aljand | EST | 56.10s | 7 | 33. | | 7. Miroslava Najdanovski | SRB | 56.50s | 1 | 38. | | 8. Maria Laura Simonetto | ITA | 56.72s | 6 | 42. |
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| Heat 3 13.08 18:38 | Team | time | L | Rk. | | 1. Hannah Jane Arnett Wilson | HKG | 55.32s | 3 | 26. | | 2. Arianna Vanderpool-Wallace | BAH | 55.61s | 4 | 28. | | 3. Birgit Koschischek | AUT | 55.62s | 2 | 29. | | 4. Heejin Chang | KOR | 55.96s | 1 | 32. | | 5. Ragnheidur Ragnarsdottir | ISL | 56.35s | 5 | 35. | | 6. Anna Stylianou | CYP | 56.38s | 8 | 36. | | 7. Eleni Kosti | GRE | 56.44s | 7 | 37. | | 8. Nina Sovinek | SLO | 57.30s | 6 | 44. |
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| Heat 2 13.08 18:36 | Team | time | L | Rk. | | 1. Ting Wen Quah | SIN | 56.14s | 5 | 34. | | 2. Natthanan Junkrajang | THA | 56.56s | 6 | 39. | | 3. Orsolya Tompa | HUN | 56.57s | 4 | 40. | | 4. Christel Simms | PHI | 56.67s | 7 | 41. | | 5. Pin-Chieh Nieh | TPE | 57.28s | 3 | 43. | | 6. Irina Shlemova | UZB | 58.77s | 2 | 46. |
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| Heat 1 13.08 18:32 | Team | time | L | Rk. | | 1. Madeleine Scerri | MLT | 57.97s | 4 | 45. | | 2. Elena Popovska | MKD | 59.93s | 5 | 47. | | 3. Olga Hachatryan | TKM | 1:14.77 | 3 | 48. |
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