Heat 2
lundi 30 septembre 2019, 17h20 GMT – 17h20 GMT
| Nom | Équipe | Temps | |
|---|---|---|---|
| 1 |  Wadeline Jonathas | United States | 50.57″ |
| 2 |  Shericka Jackson | Jamaica | + 0.56″ |
| 3 |  Bendere Oboya | Australia | + 0.64″ |
| 4 |  Lisanne de Witte | Netherlands | + 0.74″ |
| 5 |  Emily Diamond | Great Britain | + 1.09″ |
| 6 | Patience Okon | Nigeria | + 1.2″ |
| 7 | Eleni Artymata | Cyprus | + 1.33″ |
| 8 | Alena Mamina | Authorised Neutral Athlete | + 1.58″ |