Women's 400m Hurdles Round 1 - Heat 5
samedi 31 juillet 2021, 00h32 GMT – 05h32 GMT
| Nom | Temps | |
|---|---|---|
| 1 |  Dalilah Muhammad | 53.97″ |
| 2 |  Carolina Krafzik | + 0.75″ |
| 3 |  Lea Sprunger | + 0.77″ |
| 4 |  Joanna Linkiewicz | + 0.96″ |
| 5 |  Zurian Hechavarria | + 1.02″ |
| 6 |  Emma Zapletalová | + 1.03″ |
| 7 | Line Kloster | + 2.48″ |
| 8 | Loubna Benhadja | + 3.22″ |