| Final: Start time: 21:38 +1 UTC, Temperature 18° C, Humidity 60 % _ |   
                                     | Final Ranking | time |   | L | Q | React. | bib |  | 1. Kori Carter |  USA | 53.07s |   | 9 | 4. | 0.151 | 4323 |  | 2. Dalilah Muhammad |  USA | 53.50s |   | 4 | 5. | 0.152 | 4357 |  | 3. Ristananna Tracey |  JAM | 53.74s | PB | 7 | 2. | 0.178 | 4047 |  | 4. Zuzana Hejnová |  CZE | 54.20s | SB | 6 | 1. | 0.151 | 3799 |  | 5. Léa Sprunger |  SUI | 54.59s |   | 5 | 3. | 0.183 | 4239 |  | 6. Sage Watson |  CAN | 54.92s |   | 8 | 6. | 0.172 | 3746 |  | 7. Cassandra Tate |  USA | 55.43s |   | 3 | 7. | 0.216 | 4375 |  | 8. Eilidh Doyle |  GBR | 55.71s |   | 2 | 8. | 0.157 | 3888 |   
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|   |  | Qualifiyng standard: 56.10s |  | Event Target Number: 40 Athletes. |   
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  Semi-Finals - Tuesday 08.08 20:35. |  | First 2 and best 2 advanced to Final. |   
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 |   |  | Temperature 16° C, Humidity 77  |   
                                     | Ranking | time |   | L | Rk | React. | bib |  | 1. Zuzana Hejnová |  CZE | 54.59s |   | 6 | 1. | 0.155 | 3799 |  | 2. Kori Carter |  USA | 54.92s |   | 7 | 4. | 0.162 | 4323 |  | 3. Wenda Nel |  RSA | 55.70s |   | 4 | 10. | 0.205 | 4206 |  | 4. Shamier Little |  USA | 55.76s |   | 9 | 11. | 0.199 | 4351 |  | 5. Petra Fontanive |  SUI | 55.79s |   | 5 | 12. | 0.220 | 4231 |  | 6. Leah Nugent |  JAM | 56.19s |   | 2 | 14. | 0.230 | 4039 |  | 7. Joanna Linkiewicz |  POL | 56.25s |   | 3 | 15. | 0.225 | 4179 |  | 8. Sparkle McKnight |  TTO | 56.59s |   | 8 | 19. | 0.193 | 4265 |   
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 |   |  | Temperature 16° C, Humidity 77  |   
                                         | Ranking | time |   | L | Rk | React. | bib |  | 1. Ristananna Tracey |  JAM | 54.79s |   | 4 | 2. | 0.194 | 4047 |  | 2. Léa Sprunger |  SUI | 54.82s |   | 5 | 3. | 0.182 | 4239 |  | 3. Cassandra Tate |  USA | 55.31s |   | 9 | 7. | 0.215 | 4375 |  | 4. Sara Slott Petersen |  DEN | 55.45s |   | 7 | 9. | 0.181 | 3809 |  | 5. Ayomide Folorunso |  ITA | 56.47s |   | 5 | 19. | 0.214 | 4009 |  | 6. Meghan Beesley |  GBR | 56.61s |   | 2 | 20. | 0.196 | 3882 |  | 7. Agata Zupin |  SLO | 57.05s |   | 3 | 21. | 0.205 | 4218 |  | -. Glory Onome Nathaniel |  NGR | DQ |   | 8 |   | 0.212 | 4148 |   
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 |   |  | Temperature 16° C, Humidity 77  |   
                                    | Ranking | time |   | L | Rk | React. | bib |  | 1. Dalilah Muhammad |  USA | 55.00s |   | 5 | 5. | 0.181 | 4357 |  | 2. Sage Watson |  CAN | 55.05s |   | 4 | 6. | 0.176 | 3746 |  | 3. Eilidh Doyle |  GBR | 55.33s |   | 9 | 8. | 0.161 | 3888 |  | 4. Yadisleidis Pedroso |  ITA | 55.95s |   | 3 | 13. | 0.224 | 4015 |  | 5. Grace Claxton |  PUR | 56.396s |   | 8 | 16. | 0.216 | 4194 |  | 6. Denisa Rosolová |  CZE | 56.398s |   | 7 | 17. | 0.176 | 3805 |  | 7. Gianna Woodruff |  PAN | 57.32s |   | 2 | 22. | 0.200 | 4161 |  | -. Rhonda Whyte |  JAM | DQ R 163.3[a] | 6 |   | 0.149 | 4048 |   
 Rule 163.3[a] - Line infrigement.
 
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 |   |  | Temperature 20° C, Humidity 64  |   
                                      | Ranking | time |   | L | Rk | React. | bib |  | 1. Dalilah Muhammad |  USA | 54.59s |   | 6 | 1. | 0.171 | 4357 |  | 2. Sage Watson |  CAN | 55.06s |   | 3 | 5. | 0.201 | 3746 |  | 3. Denisa Rosolová |  CZE | 55.41s | SB | 2 | 10. | 0.167 | 3805 |  | 4. Sparkle McKnight |  TTO | 55.46s | SB | 4 | 11. | 0.197 | 4265 |  | 5. Leah Nugent |  JAM | 56.16s |   | 7 | 17. | 0.232 | 4039 |  | 6. Zurian Hechavarría |  CUB | 56.44s |   | 5 | 24. | 0.196 | 3787 |  | 7. Lauren Wells |  AUS | 56.49s |   | 8 | 25. | 0.161 | 3641 |   
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 |   |  | Temperature 19° C, Humidity 56  |   
                                       | Ranking | time |   | L | Rk | React. | bib |  | 1. Zuzana Hejnová |  CZE | 55.05s |   | 8 | 4. | 0.152 | 3799 |  | 2. Sara Slott Petersen |  DEN | 55.23s |   | 4 | 8. | 0.217 | 3809 |  | 3. Cassandra Tate |  USA | 55.48s |   | 7 | 13. | 0.232 | 4375 |  | 4. Ayomide Folorunso |  ITA | 55.65s | SB | 5 | 15. | 0.195 | 4009 |  | 5. Joanna Linkiewicz |  POL | 56.176s |   | 3 | 19. | 0.179 | 4179 |  | 6. Jessica Turner |  GBR | 56.98s |   | 2 | 30. | 0.198 | 3915 |  | 7. Déborah Rodríguez |  URU | 57.61s | SB | 6 | 35. | 0.181 | 4309 |  | 8. Yasmin Giger |  SUI | 57.72s |   | 9 | 36. | 0.174 | 4232 |   
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 |   |  | Temperature 19° C, Humidity 56  |   
                                       | Ranking | time |   | L | Rk | React. | bib |  | 1. Ristananna Tracey |  JAM | 54.92s |   | 2 | 2. | 0.206 | 4047 |  | 2. Petra Fontanive |  SUI | 56.13s |   | 7 | 16. | 0.195 | 4231 |  | 3. Shamier Little |  USA | 56.18s |   | 6 | 18. | 0.235 | 4351 |  | 4. Agata Zupin |  SLO | 56.54s |   | 5 | 27. | 0.239 | 4218 |  | 5. Olena Kolesnychenko |  UKR | 56.88s |   | 3 | 28. | 0.181 | 4293 |  | 6. Aminat Yusuf Jamal |  BRN | 57.41s |   | 8 | 32. | 0.222 | 3711 |  | 7. Jackie Baumann |  GER | 57.59s |   | 4 | 34. | 0.255 | 3923 |  | 8. Kristina Pronzhenko |  TJK | 1:03.44 |   | 9 | 39. | 0.282 | 4258 |   
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 |   |  | Temperature 19° C, Humidity 56  |   
                                     | Ranking | time |   | L | Rk | React. | bib |  | 1. Kori Carter |  USA | 54.99s |   | 3 | 3. | 0.172 | 4323 |  | 2. Wenda Nel |  RSA | 55.47s |   | 8 | 12. | 0.175 | 4206 |  | 3. Eilidh Doyle |  GBR | 55.49s |   | 9 | 14. | 0.173 | 3888 |  | 4. Gianna Woodruff |  PAN | 56.50s |   | 2 | 26. | 0.196 | 4161 |  | 5. Marzia Caravelli |  ITA | 56.92s |   | 7 | 29. | 0.161 | 4007 |  | 6. Viktoriya Tkachuk |  UKR | 57.05s |   | 6 | 31. | 0.236 | 4307 |  | 7. Tia-Adana Belle |  BAR | 58.82s |   | 4 | 37. | 0.245 | 3658 |  | 8. Drita Islami |  MKD | 1:00.38 |   | 5 | 38. | 0.208 | 4115 |   
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 |   |  | Temperature 19° C, Humidity 56  |   
                                         | Ranking | time |   | L | Rk | React. | bib |  | 1. Léa Sprunger |  SUI | 55.14s |   | 2 | 6. | 0.180 | 4239 |  | 2. Rhonda Whyte |  JAM | 55.18s |   | 7 | 7. | 0.168 | 4048 |  | 3. Glory Onome Nathaniel |  NGR | 55.30s | PB | 3 | 9. | 0.178 | 4148 |  | 4. Grace Claxton |  PUR | 56.35s |   | 5 | 20. | 0.199 | 4194 |  | 5. Yadisleidis Pedroso |  ITA | 56.401s |   | 9 | 21. | 0.242 | 4015 |  | 6. Meghan Beesley |  GBR | 56.408s |   | 6 | 22. | 0.173 | 3882 |  | 7. Amalie Iuel |  NOR | 56.42s |   | 8 | 23. | 0.172 | 4155 |  | 8. Noelle Montcalm |  CAN | 57.45s |   | 4 | 33. | 0.220 | 3733 |   
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 |   |  | Event Target Number: 40. 42 Athletes. 25 Countries. |  | Ashley Spencer 4th from United States. Janieve Russell 4th from Jamaica. |   
| Athlete | 2017 | best | birth | start |  | 2. Dalilah Muhammad |  USA | 52.64s | 52.64s | 7 Feb 90 | Ht 1 5. |  | -. Shamier Little |  USA | 52.75s | 52.75s | 20 Mar 95 | Ht 3 6. |  | 1. Kori Carter |  USA | 52.96s | 52.96s | 3 Jun 92 | Ht 4 3. |  | -. Ashley Spencer |  USA | 53.11s | 53.11s | 8 Jun 93 |   |  | -. Janieve Russell |  JAM | 54.02s | 53.96s | 14 Nov 93 |   |  | 4. Zuzana Hejnová |  CZE | 54.22s | 52.83s | 19 Dec 86 | Ht 2 8. |  | -. Rhonda Whyte |  JAM | 54.29s | 54.29s | 6 Nov 90 | Ht 5 7. |  | 5. Léa Sprunger |  SUI | 54.29s | 54.29s | 5 Mar 90 | Ht 5 2. |  | -. Sara Slott Petersen |  DEN | 54.35s | 53.55s | 9 Apr 87 | Ht 2 4. |  | 8. Eilidh Doyle |  GBR | 54.36s | 54.09s | 20 Feb 87 | Ht 4 9. |  | 3. Ristananna Tracey |  JAM | 54.49s | 54.15s | 9 May 92 | Ht 3 2. |  | 6. Sage Watson |  CAN | 54.52s | 54.52s | 20 Jun 94 | Ht 1 3. |  | -. Leah Nugent |  JAM | 54.54s | 54.45s | 23 Nov 92 | Ht 1 7. |  | -. Petra Fontanive |  SUI | 54.56s | 54.56s | 10 Oct 88 | Ht 3 7. |  | -. Oluwakemi Adekoya |  BRN | 54.57s | 54.12s | 16 Jan 93 |   |  | -. Wenda Nel |  RSA | 54.58s | 54.37s | 30 Jul 88 | Ht 4 8. |  | 7. Cassandra Tate |  USA | 54.59s | 54.01s | 11 Sep 90 | Ht 2 7. |  | -. Yadisleidis Pedroso |  ITA | 54.87s | 54.54s | 28 Jan 87 | Ht 5 9. |  | -. Amalie Iuel |  NOR | 55.38s | 55.38s | 17 Apr 94 | Ht 5 8. |  | -. Joanna Linkiewicz |  POL | 55.42s | 55.25s | 2 May 90 | Ht 2 2. |  | -. Tia-Adana Belle |  BAR | 55.42s | 55.42s | 15 Jun 96 | Ht 3 4. |  | -. Olena Kolesnychenko |  UKR | 55.50s | 55.48s | 3 Jun 93 | Ht 3 3. |  | -. Denisa Rosolová |  CZE | 55.59s | 54.24s | 21 Aug 86 | Ht 1 2. |  | -. Sparkle Mcknight |  TTO | 55.61s | 55.41s | 21 Dec 91 | Ht 1 4. |  | -. Jackie Baumann |  GER | 55.72s | 55.72s | 24 Aug 95 | Ht 3 4. |  | -. Gianna Woodruff |  PAN | 55.76s | 55.76s | 18 Nov 93 | Ht 4 2. |  | -. Ayomide Folorunso |  ITA | 55.82s | 55.50s | 17 Oct 96 | Ht 2 5. |  | -. Marzia Caravelli |  ITA | 55.83s | 55.69s | 23 Oct 81 | Ht 4 7. |  | -. Noelle Montcalm |  CAN | 55.85s | 55.81s | 3 Apr 88 | Ht 5 4. |  | -. Glory Onome Nathaniel |  NGR | 55.90s | 55.90s | 23 Jan 96 | Ht 5 3. |  | -. Yasmin Giger |  SUI | 55.90s | 55.90s | 6 Nov 99 | Ht 2 8. |  | -. Agata Zupin |  SLO | 55.96s | 55.96s | 17 Mar 98 | Ht 3 5. |  | -. Lauren Wells |  AUS | 55.97s | 55.08s | 3 Aug 88 | Ht 1 8. |  | -. Zurian HechavarrÍa |  CUB | 56.02s | 55.97s | 10 Aug 95 | Ht 1 5. |  | -. Viktoriya Tkachuk |  UKR | 56.07s | 55.32s | 8 Nov 94 | Ht 3 6. |  | -. Aminat Yusuf Jamal |  BRN | 56.08s | 56.08s | 27 Jun 97 | Ht 3 8. |  | -. Jessica Turner |  GBR | 56.08s | 56.08s | 8 Aug 95 | Ht 2 2. |  | -. Grace Claxton |  PUR | 56.10s | 55.85s | 19 Aug 93 | Ht 5 5. |  |  bellow Qualifiyng standard: 56.10s |  | -. Meghan Beesley |  GBR | 56.14s | 54.52s | 15 Nov 89 | Ht 5 6. |  | -. Déborah RodrÍguez |  URU | 57.70s | 56.30s | 2 Dec 92 | Ht 2 6. |  | -. Drita Islami |  MKD | 59.33s | 59.33s | 1 Aug 96 | Ht 3 5. |  | -. Kristina Pronzhenko |  TJK | 59.34s | 59.34s | 10 Dec 88 | Ht 3 9. |   
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