Women's 400m Round 1 - Heat 7
samedi 13 août 2016, 14h42 GMT – 19h42 GMT
| Nom | Temps | |
|---|---|---|
| 1 |  Shericka Jackson | 51.73″ |
| 2 |  Kabange Mupopo | + 0.03″ |
| 3 | Justyna Swiety | + 0.09″ |
| 4 |  Christine Botlogetswe | + 0.64″ |
| 5 | Omolara Omotoso | + 1.49″ |
| 6 | Elina Mikhina | + 2.1″ |
| 7 | Dalal Al Harith | + 15.39″ |