Heat 5
lundi 30 septembre 2019, 17h20 GMT – 17h20 GMT
| Nom | Équipe | Temps | |
|---|---|---|---|
| 1 |  Shaunae Miller-Uibo | Bahamas | 51.3″ |
| 2 |  Déborah Sananes | FFA - France Athlétisme | + 0.46″ |
| 3 |  Mary Moraa | Kenya | + 0.55″ |
| 4 |  Polina Miller | Authorised Neutral Athlete | + 0.66″ |
| 5 |  Anna Kielbasinska | Poland | + 0.95″ |
| 6 | Anastasia Le-Roy | Jamaica | + 0.96″ |
| 7 |  Irini Vasiliou | Greece | + 1.01″ |
| 8 | Kenza Sosse | Qatar | + 15.46″ |