Semifinal 1
dimanche 23 juillet 2017, 17h43 GMT – 17h43 GMT
| Nom | Équipe | Temps | |
|---|---|---|---|
| 1 |  Kelsi Dahlia | United States | 56.74″ |
| 2 |  Rikako Ikee | Japan | + 0.15″ |
| 3 |  Yufei Zhang | China | + 0.55″ |
| 4 | Svetlana Chimrova | Russia | + 0.9″ |
| 5 | Liliána Szilágyi | Hungary | + 1.01″ |
| 6 | Aliena Schmidtke | Germany | + 1.13″ |
| 7 |  Brianna Throssell | Australia | + 1.47″ |
| 8 | Ying Lu | China | + 1.71″ |