| Final 18:47 | time | | L | React. | bib | | 1. Oluwakemi Adekoya |  BRN | 51.45s | AIR | 5 | 0.189 | 625 | | 2. Ashley Spencer |  USA | 51.72s | | 6 | 0.187 | 839 | | 3. Quanera Hayes | USA | 51.76s | | 4 | 0.197 | 827 | | 4. Stephenie Ann McPherson |  JAM | 52.20s | | 2 | 0.129 | 712 | | 5. Justyna Swiety |  POL | 52.46s | | 3 | 0.202 | 767 | | 6. Iveta Putalová |  SVK | 54.39s | | 1 | 0.277 | 791 |
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| Qualification Standard: 53.15s | | Qualification Standard Outdoor: 51.20s |
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| | | Friday 18.03 - First 3 progress to Final. |
| Semi 1 19:25 | time | | L | React | bib | Rk. | | 1. Ashley Spencer | USA | 52.39s | Q | 5 | 0.186 | 839 | 4 | | 2. Justyna Swiety | POL | 53.00s | Q | 6 | 0.214 | 767 | 7. | | 3. Iveta Putalová | SVK | 53.13s | Q SB | 4 | 0.280 | 791 | 8. | | 4. Bianca Razor |  ROU | 53.34s | | 1 | 0.173 | 776 | 9. | | 5. Lisanne De Witte |  NED | 53.35s | | 3 | 0.201 | 743 | 10. | | 6. Samantha Edwards |  ANT | 54.67s | | 2 | 0.199 | 601 | 12. |
| Semi 2 19:32 | time | | L | React | bib | Rk. | | 1. Oluwakemi Adekoya | BRN | 51.47s | Q AIR | 5 | 0.224 | 625 | 1. | | 2. Quanera Hayes | USA | 51.54s | Q | - | 0.196 | 827 | 2. | | 3. Stephenie Ann McPherson | JAM | 51.91s | Q SB | 3 | 0.138 | 712 | 3. | | 4. Kabange Mupopo |  ZAM | 52.68s | NIR | 1 | 0.185 | 849 | 5. | | 5. Malgorzata Holub | POL | 52.73s | SB | 4 | 0.162 | 762 | 6. | | 6. Grace Claxton |  PUR | 53.67s | | 2 | 0.232 | 773 | 11. |
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| | | Friday 18.03 - First 2 + Best 4 |
| Heat 1 12:25 | time | | L | React | bib | Rk | | 1. Oluwakemi Adekoya | BRN | 52.27s | Q | 6 | 0.211 | 625 | 1. | | 2. Stephenie Ann McPherson | JAM | 52.56s | Q | 5 | 0.159 | 712 | 2. | | 3. Kabange Mupopo | ZAM | 52.72s | q NIR | 2 | 0.206 | 849 | 3. | | 4. Samantha Edwards | ANT | 53.70s | q | 4 | 0.219 | 601 | 9. | | 5. Amaliya Sharoyan |  ARM | 55.13s | SB | 3 | 0.156 | 603 | 14. |
| Heat 2 12:32 | time | | L | React | bib | Rk | | 1. Ashley Spencer | USA | 52.96s | Q | 5 | 0.176 | 839 | 4. | | 2. Lisanne De Witte | NED | 53.19s | Q | 6 | 0.191 | 743 | 7. | | 3. Grace Claxton | PUR | 53.97s | q | 3 | 0.264 | 773 | 10. | | 4. Christina Francisco |  GUM | 1:00.08 | NIR | 4 | 0.250 | 689 | 16. | | -. Hindi Abdiqadir Abdi |  SOM | DNS | | 2 | | 788 | |
| Heat 3 12:39 | time | | L | React | bib | Rk | | 1. Justyna Swiety | POL | 54.25s | Q | 6 | 0.217 | 767 | 11. | | 2. Iveta Putalová | SVK | 54.53s | Q | 3 | 0.247 | 791 | 12. | | 3. Ashley Kelly |  IVB | 54.95s | | 4 | 0.207 | 705 | 13. | | -. Chrisann Gordon | JAM | DNF | | 5 | 0.171 | 707 | |
| Heat 4 12:46 | time | | L | React | bib | Rk | | 1. Quanera Hayes | USA | 52.98s | Q | 6 | 0.209 | 827 | 5. | | 2. Malgorzata Holub | POL | 53.15s | Q | 4 | 0.225 | 762 | 6. | | 3. Bianca Razor | ROU | 53.27s | q | 5 | 0.223 | 776 | 8. | | 4. Djénébou Danté |  MLI | 55.76s | NIR | 2 | 0.311 | 740 | 15. | | -. Tjipekapora Herunga |  NAM | DQ R163.3(b) | 3 | 0.209 | 742 | |
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| Athlete | 2016 | Best | bib | Heat | L | | 3. Quanera Hayes | USA | 51.09s | 51.09s | 827 | Heat 4 | 6 | | 2. Ashley Spencer | USA | 51.29s | 51.27s | 839 | Heat 2 | 5 | | 1. Oluwakemi Adekoya | BRN | 51.67s | 51.67s | 625 | Heat 1 | 6 | | -. Chrisann Gordon | JAM | 51.69s | 51.69s | 707 | Heat 3 | 5 | | 4. Stephenie Ann McPherson | JAM | 52.05s | 52.05s | 712 | Heat 1 | 5 | | 5. Justyna Swiety | POL | 52.30s | 52.13s | 767 | Heat 3 | 6 | | -. Lisanne De Witte | NED | 52.49s | 52.49s | 743 | Heat 2 | 6 | | -. Tjipekapora Herunga | NAM | 52.71os | 55.40s | 742 | Heat 4 | 3 | | -. Bianca Razor | ROU | 52.82s | 52.82s | 776 | Heat 4 | 5 | | -. Malgorzata Holub | POL | 52.86s | 52.86s | 762 | Heat 4 | 4 | | -. Grace Claxton | PUR | 52.89s | 52.89s | 773 | Heat 2 | 3 | | -. Samantha Edwards | ANT | 53.01s | 53.01s | 601 | Heat 1 | 4 | | -. Ashley Kelly | IVB | 53.01s | 53.01s | 705 | Heat 3 | 4 | | No Qualification Standard 53.15s in 2016. | | 6. Iveta Putalová | SVK | 53.50s | 52.84s | 791 | Heat 3 | 3 | | -. Amaliya Sharoyan | ARM | 55.83s | 54.24s | 603 | Heat 1 | 3 | | -. Christina Francisco | GUM | 1:00.34 | 1:00.34 | 689 | Heat 2 | 4 | | -. Kabange Mupopo | ZAM | | 50.22os | 849 | Heat 1 | 2 | | -. Djénébou Danté | MLI | | 52.51os | 740 | Heat 4 | 2 | | -. Hindi Abdiqadir Abdi | SOM | | 56.18os | 788 | Heat 2 | 2 |
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