Heat 1
mardi 1 octobre 2019, 16h30 GMT – 16h30 GMT
| Nom | Équipe | Temps | |
|---|---|---|---|
| 1 |  Sydney McLaughlin | United States | 54.45″ |
| 2 |  Lea Sprunger | Switzerland | + 0.53″ |
| 3 | Shiann Salmon | Jamaica | + 0.75″ |
| 4 | Vera Rudakova | Authorised Neutral Athlete | + 1.06″ |
| 5 | Lauren Wells | Australia | + 1.55″ |
| 6 | Jéssica Moreira | Brazil | + 3.21″ |
| 7 | Mariam Mamdouh Farid | Qatar | + 15.04″ |
| Portia Bing | New Zealand | DQ |