Heat 1
dimanche 22 juillet 2018, 16h39 GMT – 16h39 GMT
| Nom | Équipe | Temps | |
|---|---|---|---|
| 1 |  Kendra Harrison | United States | 12.5″ |
| 2 |  Danielle Williams | Jamaica | + 0.17″ |
| 3 | Tobi Amusan | Nigeria | + 0.19″ |
| 4 |  Elvira Herman | Belarus | + 0.37″ |
| 5 | Rikenette Steenkamp | South Africa | + 0.55″ |
| 6 | Evonne Britton | United States | + 0.58″ |
| 7 | Megan Marrs | Great Britain | + 0.87″ |
| 8 | Jessica Hunter | Great Britain | + 1.28″ |
 Nadine Visser | Netherlands | DNF |