Women's 400m Hurdles Semi-Final 2
lundi 2 août 2021, 11h45 GMT – 16h45 GMT
| Nom | Temps | |
|---|---|---|
| 1 |  Sydney McLaughlin | 53.03″ |
| 2 | Gianna Woodruff | + 1.19″ |
| 3 |  Anna Ryzhykova | + 1.2″ |
| 4 |  Zurian Hechavarria | + 2.18″ |
| 5 |  Joanna Linkiewicz | + 2.64″ |
| 6 | Emma Zapletalová | + 2.76″ |
| 7 |  Wenda Nel | + 3.32″ |
| 8 | Tia-Adana Belle | + 6.23″ |