Women's 400m Hurdles Round 1 - Heat 4
mardi 16 août 2016, 01h14 GMT – 06h14 GMT
| Nom | Temps | |
|---|---|---|
| 1 |  Sara Petersen | 55.2″ |
| 2 |  Wenda Nel | + 0.35″ |
| 3 |  Emilia Ankiewicz | + 0.69″ |
| 4 |  Yadisleidy Pedroso | + 0.71″ |
| 5 | Janeil Bellille | + 1.05″ |
| 6 | Katsiaryna Belanovich | + 1.35″ |
| 7 | Axelle Dauwens | + 2.48″ |
| 8 | Ghofrane Mohamed | + 3.65″ |