Heat 4
mardi 25 juillet 2017, 09h49 GMT – 09h49 GMT
| Nom | Équipe | Temps | |
|---|---|---|---|
| 1 |  Emma McKeon | Australia | 1′ 56.61″ |
| 2 |  Siobhán Haughey | Hong Kong, China | + 0.01″ |
| 3 | Leah Smith | United States | + 0.43″ |
| 4 |  Femke Heemskerk | Netherlands | + 0.45″ |
| 5 |  Mary-Sophie Harvey | Canada | + 1.77″ |
| 6 |  Maria Ugolkova | Switzerland | + 2.52″ |
| 7 | Manuella Lyrio | Brazil | + 2.63″ |
| 8 |  Andrea Murez | Israel | + 3.14″ |
| 9 | Evelyn Verrasztó | Hungary | + 3.31″ |
| 10 | Gaja Natlacen | Slovenia | + 7.61″ |