| Final 19:40 | time | | L | React. | bib | | 1. Francena Mccorory |  USA | 51.12s | | 5 | 0.319 | 865 | | 2. Kaliese Spencer |  JAM | 51.54s | PB | 4 | 0.214 | 719 | | 3. Shaunae Miller |  BAH | 52.06s | | 1 | 0.163 | 608 | | 4. Justyna Swiety |  POL | 52.20s | | 3 | 0.271 | 776 | | 5. Patricia Hall | JAM | 52.51s | | 6 | 0.159 | 715 | | 6. Joanna Atkins | USA | 52.55s | | 2 | 0.162 | 847 |
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| Qualification Standard A: 51.20s | | Qualification Standard B: 53.20s |
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| | | Friday 09.03 - First 3 progress to Final. |
| Semi 1 20:55 | time | | L | React | bib | | 1. Patricia Hall | JAM | 52.82s | | 1 | 0.171 | 715 | | 2. Justyna Swiety | POL | 52.97s | | 4 | 0.240 | 776 | | 3. Joanna Atkins | USA | 53.20s | | 2 | 0.184 | 847 | | -. Lisanne De Witte |  NED | DQ R163.2(b) | 3 | 0.271 | 742 | | -. Denisa Rosolová |  CZE | DNF | 6 | 0.219 | 642 | | -. Regina George |  NGR | DNS | 5 | | 750 |
| Semi 2 21:02 | time | | L | React | bib | | 1. Francena Mccorory | USA | 51.35s | | 4 | 0.284 | 865 | | 2. Kaliese Spencer | JAM | 51.58s | PB | 5 | 0.237 | 719 | | 3. Shaunae Miller | BAH | 51.63s | SB | 6 | 0.166 | 608 | | 4. Kseniya Ryzhova |  RUS | 51.64s | | 4 | 0.167 | 807 | | 5. Margaret Adeoye |  GBR | 53.59s | | 2 | 0.196 | 661 | | 6. Esther Cremer |  GER | 53.60s | | 1 | 0.213 | 678 |
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| | | Friday 09.03 - First 2 + Best 6 |
| Heat 1 10:05 | time | | L | React | bib | | 1. Regina George | NGR | 51.60s | SB | 5 | 0.222 | 750 | | 2. Justyna Swiety | POL | 52.13s | PB | 4 | 0.222 | 776 | | 3. Patricia Hall | JAM | 52.19s | | 6 | 0.170 | 715 | | 4. Margaret Adeoye | GBR | 52.69s | SB | 3 | 0.222 | 661 |
| Heat 2 10:12 | time | | L | React | bib | | 1. Kaliese Spencer | JAM | 52.26s | | 6 | 0.263 | 719 | | 2. Lisanne De Witte | NED | 52.61s | PB | 3 | 0.265 | 742 | | 3. Joanna Atkins | USA | 52.61s | | 5 | 0.182 | 847 | | 4. Shana Cox | GBR | 53.10s | | 4 | 0.224 | 663 |
| Heat 3 10:19 | time | | L | React | bib | | 1. Shaunae Miller | BAH | 52.10s | SB | 5 | 0.190 | 608 | | 2. Kseniya Ryzhova | RUS | 52.47s | | 6 | 0.278 | 807 | | 3. Malgorzata Holub | POL | 53.07s | | 4 | 0.255 | 766 | | 4. Nicky van Leuveren | NED | 53.34s | | 3 | 0.156 | 748 | | 5. Melissa Caddle |  GUY | 54.56s | | 2 | 0.351 | 693 |
| Heat 4 10:26 | time | | L | React | bib | | 1. Denisa Rosolová | CZE | 52.37s | SB | 3 | 0.264 | 642 | | 2. Francena Mccorory | USA | 52.37s | | 4 | 0.335 | 865 | | 3. Esther Cremer | GER | 52.71s | | 5 | 0.168 | 678 | | 4. Kineke Alexander |  VIN | 52.80s | SB | 2 | 0.191 | 881 | | 5. Samantha Edwards |  ANT | 54.74s | | 1 | 0.245 | 604 |
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