| Final 21:50 | Team | time | L | N |  | 1. Christine Ohuruogu |  GBR | 49.61s | 6 | 477 |  | 2. Nicola Sanders |  GBR | 49.65s | 4 | 474 |  | 3. Novlene Williams |  JAM | 49.66s | 7 | 590 |  | 4. Ana Guevara |  MEX | 50.16s | 9 | 677 |  | 5. Deedee Trotter |  USA | 50.17s | 8 | 1003 |  | 6. Natalya Antyukh |  RUS | 50.33s | 5 | 793 |  | 7. Ilona Usovich |  BLR | 50.54s | 3 | 259 |  | 8. Mary Wineberg |  USA | 50.96s | 2 | 1006 |   
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| Heat 1 21:10 | Team | time | L | N |  | 1. Novlene Williams |  JAM | 49.66s | 6 | 590 |  | 2. Ana Guevara |  MEX | 50.19s | 4 | 677 |  | 3. Ilona Usovich |  BLR | 50.31s | 7 | 259 |  | 4. Joanne Cuddihy |  IRL | 50.73s | 8 | 556 |  | 5. Lee Mcconnell |  GBR | 51.07s | 9 | 473 |  | 6. Indira Terrero |  CUB | 51.08s | 2 | 362 |  | 7. Natasha Hastings |  USA | 51.45s | 5 | 968 |  | 8. Asami Tanno |  JPN | 51.81s | 3 | 609 |   
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| Heat 2 21:18 | Team | time | L | N |  | 1. Nicola Sanders |  GBR | 49.77s | 6 | 474 |  | 2. Natalya Antyukh |  RUS | 49.93s | 5 | 793 |  | 3. DeeDee Trotter |  USA | 50.31s | 6 | 1003 |  | 4. Shericka Williams |  JAM | 50.37s | 4 | 592 |  | 5. Christine Amertil |  BAH | 51.18s | 3 | 229 |  | 6. Daniela Reina |  ITA | 51.99s | 8 | 570 |  | 7. Barbara Petrahn |  HUN | 52.12s | 2 | 542 |  | 8. Aliann Pompey |  GUY | 53.58s | 9 | 535 |   
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| Heat 3 21:26 | Team | time | L | N |  | 1. Christine Ohuruogu |  GBR | 50.16s | 4 | 477 |  | 2. Mary Wineberg |  USA | 50.27s | 5 | 1006 |  | 3. Tatyana Veshkurova |  RUS | 50.71s | 6 | 839 |  | 4. Amantle Montsho |  BOT | 50.90s | 8 | 267 |  | 5. Shereefa Lloyd |  JAM | 50.00s | 7 | 589 |  | 6. Christy Ekpukhon Ihunaegbo |  NGR | 51.60s | 2 | 703 |  | 7. Ionela Tirlea-Manolache |  ROU | 51.62s | 9 | 779 |  | 8. Aymee Marttnez |  CUB | 57.77s | 3 | 360 |   
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| Heat 1 10:50 | Team | time | L | N |  | 1. Natalya Antyukh |  RUS | 50.88s | 5 | 793 |  | 2. Mary Wineberg |  USA | 51.25s | 3 | 1006 |  | 3. Shereefa Lloyd |  JAM | 51.42s | 2 | 589 |  | 4. Lee Mcconnell |  GBR | 51.44s | 6 | 473 |  | 5. Oksana Shcherbak |  UKR | 52.39s | 9 | 929 |  | 6. Justine Bayigga |  UGA | 53.25s | 7 | 910 |  | 7. Joy Eze |  NGR | 53.83s | 8 | 704 |  | 8. Olga Tereshkova |  KAZ | 54.09s | 4 | 634 |   
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| Heat 2 10:58 | Team | time | L | N |  | 1. DeeDee Trotter |  USA | 51.27s | 5 | 1003 |  | 2. Nicola Sanders |  GBR | 51.45s | 6 | 474 |  | 3. Joanne Cuddihy |  IRL | 51.55s | 4 | 556 |  | 4. Christine Amertil |  BAH | 51.55s | 7 | 229 |  | 5. Zuzanna Radecka |  POL | 52.19s | 8 | 742 |  | 6. Folashade Abugan |  NGR | 52.58s | 1 | 700 |  | 7. Maria Laura Almirao |  BRA | 53.68s | 9 | 269 |  | 8. Hazel-Ann Regis |  GRN | 54.78s | 2 | 532 |  | 9. Vera Barbosa | CPV | 58.56s | 3 | 347 |   
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| Heat 3 11:06 | Team | time | L | N |  | 1. Tatyana Veshkurova |  RUS | 51.67s | 8 | 839 |  | 2. Shericka Williams |  JAM | 51.72s | 2 | 592 |  | 3. Barbara Petrahn |  HUN | 51.86s | 9 | 542 |  | 4. Amantle Montsho |  BOT | 51.87s | 4 | 267 |  | 5. Kineke Alexander | VIN | 52.51s | 6 | 1016 |  | 6. Ginou Etienne | HAI | 53.89s | 7 | 536 |  | 7. Amy Mbacke Thiam |  SEN | 54.31s | 5 | 851 |  | 8. Nawal El Jack |  SUD | 55.29s | 3 | 868 |   
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| Heat 4 11:14 | Team | time | L | N |  | 1. Novlene Williams |  JAM | 50.21s | 4 | 590 |  | 2. Ana Guevara |  MEX | 50.85s | 5 | 677 |  | 3. Ionela Tirlea-Manolache |  ROU | 51.59s | 6 | 779 |  | 4. Aymee Marttnez |  CUB | 51.74s | 2 | 360 |  | 5. Aliann Pompey |  GUY | 51.95s | 9 | 535 |  | 6. Christy Ekpukhon Ihunaegbo |  NGR | 52.05s | 3 | 703 |  | 7. Makelesi Bulikiobo | FIJ | 52.23s | 8 | 418 |  | 8. Solen Desert |  FRA | 54.03s | 7 | 435 |   
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| Heat 5 11:22 | Team | time | L | N |  | 1. Christine Ohuruogu |  GBR | 50.46s | 7 | 477 |  | 2. Ilona Usovich |  BLR | 50.53s | 8 | 259 |  | 3. Natasha Hastings |  USA | 51.07s | 5 | 968 |  | 4. Indira Terrero |  CUB | 51.76s | 3 | 362 |  | 5. Daniela Reina |  ITA | 52.02s | 4 | 570 |  | 6. Asami Tanno |  JPN | 52.13s | 2 | 609 |  | 7. Gabriela Medina |  MEX | 53.16s | 1 | 678 |  | 8. Sandrine Thiebaud-Kangni | TOG | 54.11s | 6 | 900 |  | 9. Temalangeni Dlamini | SWZ | 58.27s | 9 | 894 |   
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| Women 400m Startlist |  | 45 Athletes /32 Countries | Team | Birth | Best | 2007 | Qual. |  | 203 Klodiana Shala | ALB | 22 Aug 79 | 52.86 | 57.99 | 52.86 |  | 229 Christine Amertil | BAH | 18 Aug 79 | 50.09 | 50.99 | 50.51 |  | 259 Ilona Usovich | BLR | 14 Nov 82 | 50.69 | 51.58 | 50.69 |  | 267 Amantle Montsho | BOT | 4 Jul 83 | 51.13 | 51.13 | 51.13 |  | 269 Maria Laura Almirà | BRA | 20 Sep 77 | 51.30 | 52.16 | 52.16 |  | 347 Vera Barbosa | CPV | 13 Jan 89 | 58.66 |   | 58.66 |  | 362 Indira Terrero | CUB | 29 Nov 85 | 51.00 | 51.00 | 51.00 |  | 418 Makelesi Bulikiobo | FIJ | 23 Oct 77 | 51.89 | 53.83 | 53.83 |  | 435 Solen DÉsert | FRA | 2 Aug 82 | 51.42 | 51.42 | 51.42 |  | 473 Lee Mcconnell | GBR | 9 Oct 78 | 50.82 | 52.27 | 52.27 |  | 474 Nicola Sanders | GBR | 23 Jun 82 | 50.68 | 50.97 | 50.68 |  | 477 Christine Ohuruogu | GBR | 17 May 84 | 50.28 | 53.09 | 50.28 |  | 532 Hazel-Ann Regis | GRN | 1 Feb 81 | 50.64 | 53.07 | 50.77 |  | 535 Aliann Pompey | GUY | 9 Mar 78 | 50.93 | 51.61 | 51.61 |  | 536 Ginou Etienne | HAI | 12 Jan 85 | 51.94 | 52.46 | 52.18 |  | 542 Barbara PetrÁhn | HUN | 16 Sep 78 | 51.50 | 52.68 | 51.50 |  | 556 Joanne Cuddihy | IRL | 11 May 84 | 51.09 | 51.56 | 51.09 |  | 570 Daniela Reina | ITA | 15 May 81 | 51.18 | 52.14 | 51.18 |  | 589 Shereefa Lloyd | JAM | 2 Sep 82 | 51.02 | 51.02 | 51.02 |  | 590 Novlene Williams | JAM | 26 Apr 82 | 49.63 | 50.06 | 49.63 |  | 591 Davita Prendergast | JAM | 16 Dec 84 | 51.24 | 51.24 | 51.24 |  | 592 Shericka Williams | JAM | 17 Sep 85 | 50.24 | 51.02 | 50.24 |  | 609 Asami Tanno | JPN | 25 Sep 85 | 51.80 | 52.17 | 51.84 |  | 634 Olga Tereshkova | KAZ | 26 Oct 84 | 51.62 | 51.62 | 51.62 |  | 677 Ana Guevara | MEX | 4 Mar 77 | 48.89 | 50.34 | 50.34 |  | 678 Gabriela Medina | MEX | 3 Mar 85 | 51.25 | 51.25 | 51.25 |  | 690 Haley Nemra | MSH | 4 Oct 89 | 1:03.62 | 1:03.62 | 1:03.62 |  | 700 Folashade Abugan | NGR | 17 Dec 90 | 51.44 | 51.44 | 51.44 |  | 703 Christy Ekpukhon Ihunaegbo | NGR | 6 Feb 85 | 51.11 | 51.11 | 51.11 |  | 704 Joy Eze | NGR | 23 Apr 88 | 51.20 | 51.20 | 51.20 |  | 742 Zuzanna Radecka | POL | 2 Apr 75 | 51.58 | 52.14 | 52.14 |  | 779 Ionela TÂrlea-Manolache | ROM | 9 Feb 76 | 49.88 | 51.98 | 51.98 |  | 793 Natalya Antyukh | RUS | 26 Jun 81 | 49.85 | 50.10 | 50.10 |  | 824 Natalya Nazarova | RUS | 26 May 79 | 49.65 | 50.52 | 50.52 |  | 839 Tatyana Veshkurova | RUS | 23 Sep 81 | 49.99 | 50.22 | 49.99 |  | 851 Amy Mbacke Thiam | SEN | 10 Nov 76 | 49.86 | 50.15 | 50.15 |  | 868 Nawal El Jack | SUD | 17 Oct 88 | 51.19 | 51.78 | 51.67 |  | 894 Temalangeni Dlamini | SWZ | 16 Jul 87 | 58.97 |   | 58.97 |  | 910 Justine Bayigga | UGA | 15 Jan 79 | 52.73 | 52.79 | 52.79 |  | 929 Oksana Shcherbak | UKR | 24 Feb 82 | 51.23 | 51.93 | 51.23 |  | 968 Natasha Hastings | USA | 23 Jul 86 | 49.84 | 49.84 | 49.84 |  | 994 Sanya Richards | USA | 26 Feb 85 | 48.70 | 49.52 | 48.70 |  | 1003 DeeDee Trotter | USA | 8 Dec 82 | 49.64 | 49.64 | 49.64 |  | 1006 Mary Wineberg | USA | 3 Jan 80 | 50.24 | 50.24 | 50.24 |  | 1016 Kineke Alexander | VIN | 21 Feb 86 | 51.35 | 51.80 | 51.35 |   
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