Final 19.08 22:10 | Team | time | L | Q. | 1. Christine Ohuruogu | GBR | 49.62s | 4 | 7. 2. | 2. Shericka Williams | JAM | 49.69s | 6 | 2. 3. | 3. Sanya Richards | USA | 49.93s | 7 | 1. 1. | 4. Yulia Gushchina | RUS | 50.01s | 5 | 9. 6. | 5. Anastasia Kapachinskaya | RUS | 50.03s | 9 | 11.4. | 6. Tatiana Firova | RUS | 50.11s | 3 | 3. 5. | 7. Rosemarie Whyte | JAM | 50.68s | 2 | 7. 8. | 8. Amantle Montsho | BOT | 51.18s | 8 | 5. 7. |
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Semi 1 17.08 21:00 | Team | time | L | Rk. | 1. Christine Ohuruogu | GBR | 50.14s | 4 | 2. | 2. Shericka Williams | JAM | 50.28s | 5 | 3. | 3. Tatiana Firova | RUS | 50.31s | 7 | 5. | 4. Aliann Pompey | GUY | 50.93s | 6 | 11. | 5. Mary Wineberg | USA | 51.13s | 8 | 13. | 6. Indira Terrero | CUB | 51.80s | 3 | 16. | 7. Ajoke Odumosu | NGR | 52.45s | 9 | 21. | 8. Gabriela Medina | MEX | 52.97s | 2 | 23. |
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Semi 2 17.08 21:07 | Team | time | L | Rk. | 1. Sanya Richards | USA | 49.90s | 7 | 1. | 2. Anastasia Kapachinskaya | RUS | 50.30s | 4 | 4. | 3. Novelene Williams | JAM | 51.06s | 5 | 12. | 4. Christine Amertil | BAH | 51.51s | 6 | 15. | 5. Joy Amechi Eze | NGR | 51.87s | 2 | 17. | 6. Mcconnell Lee | GBR | 52.11s | 3 | 19. | 7. Carline Muir | CAN | 52.37s | 9 | 20. | 8. Rachael Nachula | ZAM | 52.67s | 8 | 22. |
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Semi 3 17.08 21:14 | Team | time | L | Rk. | 1. Yulia Gushchina | RUS | 50.48s | 7 | 6. | 2. Amantle Montsho | BOT | 50.54s | 4 | 7. | 3. Rosemarie Whyte | JAM | 50.63s | 6 | 8. | 4. Nicola Sanders | GBR | 50.71s | 9 | 9. | 5. Libania Grenot Martinez | ITA | 50.83s | 5 | 10. | 6. Folashade Abugan | NGR | 51.30s | 8 | 14. | 7. Deedee Trotter | USA | 51.87s | 2 | 17. | 8. Nwal Eljack | SUD | 54.18s | 3 | 24. |
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Heat 1 16.08 12:10 | Team | time | L | Rk. | 1. Rosemarie Whyte | JAM | 51.00s | 4 | 7. | 2. Christine Amertil | BAH | 51.25s | 2 | 10. | 3. Ajoke Odumosu | NGR | 51.39s | 5 | 12. | 4. Deedee Trotter | USA | 51.41s | 8 | 13. | 5. Tiandra Ponteen | SKN | 52.41s | 3 | 27. | 6. Antonina Yefremova | UKR | 53.22s | 6 | 37. |
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Heat 2 16.08 12:17 | Team | time | L | Rk. | 1. Libania Grenot Martinez | ITA | 50.87s | 6 | 4. | 2. Amantle Montsho | BOT | 50.91s | 2 | 5. | 3. Carline Muir | CAN | 51.55s | 4 | 17. | 4. Indira Terrero | CUB | 51.56s | 5 | 18. | 5. Makelesi Bulikiobo Batimala | FIJ | 52.24s | 8 | 24. | 6. Mandeep Kaur | IND | 52.88s | 3 | 33. | 7. Justine Bayigga | UGA | 54.15s | 7 | 44. |
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Heat 3 16.08 12:24 | Team | time | L | Rk. | 1. Anastasia Kapachinskaya | RUS | 51.32s | 6 | 11. | 2. Mary Wineberg | USA | 51.46s | 7 | 15. | 3. Lee McConnell | GBR | 51.87s | 5 | 21. | 4. Barbara Petrahn | HUN | 53.06s | 8 | 35. | 5. Carol Rodriguez | PRO | 53.08s | 4 | 36. | 6. Ginou Etienne | HAI | 53.94s | 3 | 41. | 7. Rachidatou Seini Maikido | NIG | 1:03.19 | 2 | 49. |
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Heat 4 16.08 12:31 | Team | time | L | Rk. | 1. Christine Ohuruogu | GBR | 51.00s | 2 | 7. | 2. Yulia Gushchina | RUS | 51.18s | 4 | 9. | 3. Gabriela Medina | MEX | 51.96s | 6 | 22. | 4. Tamsyn Lewis | AUS | 52.38s | 7 | 25. | 5. Maria Laura Almirao | BRA | 53.26s | 3 | 38. | 6. Joanne Cuddihy | IRE | 53.32s | 8 | 39. | 7. Ghada Ali | LYB | 1:06.19 | 5 | 50. |
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Heat 5 16.08 12:38 | Team | time | L | Rk. | 1. Sanya Richards | USA | 50.54s | 8 | 1. | 2. Aliann Pompey | GUY | 50.99s | 4 | 6. | 3. Folashade Abugan | NGR | 51.45s | 5 | 14. | 4. Asami Tanno | JPN | 52.60s | 6 | 28. | 5. Dimitra Ntova | GRE | 52.69s | 2 | 29. | 6. Olga Tereshkova | KAZ | 53.36s | 3 | 40. | 7. Kia Davis | LBR | 53.99s | 7 | 42. |
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Heat 6 16.08 12:45 | Team | time | L | Rk. | 1. Novelene Williams | JAM | 51.52s | 8 | 16. | 2. Nicola Sanders | GBR | 51.81s | 3 | 20. | 3. Nwal Eljack | SUD | 52.77s | 2 | 30. | 4. Kineke Alexander | SGR | 52.87s | 4 | 32. | 5. Trish Bartholomew | GRE | 52.88s | 5 | 34. | 6. Tsholofelo Thipe | RSA | 54.11s | 7 | 43. | 7. Klodiana Shala | ALB | 54.84s | 6 | 46. | 8. Munguntuya Batgerel | MGL | 58.14s | 9 | 47. |
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Heat 7 16.08 12:52 | Team | time | L | Rk. | 1. Shericka Williams | JAM | 50.57s | 8 | 2. | 2. Tatiana Firova | RUS | 50.59s | 7 | 3. | 3. Rachael Nachula | ZAM | 51.62s | 5 | 19. | 4. Joy Amechi Eze | NGR | 51.97s | 9 | 23. | 5. Alissa Kallinikou | CYP | 52.40s | 6 | 26. | 6. Monika Bejnar | POL | 52.80s | 4 | 31. | 7. Sandrine Thiebaud-Kangni | TOG | 54.16s | 2 | 45. | 8. Temalangeni Dlamini | SWA | 59.91s | 3 | 48. |
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