Final
dimanche 18 août 2019, 16h22 GMT – 16h22 GMT
| Nom | Équipe | Temps | |
|---|---|---|---|
| 1 |  Danielle Williams | Jamaica | 12.46″ |
| 2 |  Kendra Harrison | United States | + 0.2″ |
| 3 | Tobi Amusan | Nigeria | + 0.25″ |
| 4 | Nia Ali | United States | + 0.27″ |
| 5 | Janeek Brown | Jamaica | + 0.33″ |
| 6 | Brianna McNeal | United States | + 0.44″ |
| 7 | Payton Chadwick | United States | + 0.46″ |
| 8 | Tiffani McReynolds | United States | + 0.7″ |