Heat 5
vendredi 26 juillet 2019, 04h54 GMT – 04h54 GMT
| Nom | Équipe | Temps | |
|---|---|---|---|
| 1 |  Leah Smith | United States | 8′ 17.23″ |
| 2 |  Katie Ledecky | United States | + 0.19″ |
| 3 |  Ariarne Titmus | Australia | + 2.2″ |
| 4 |  Mireia Belmonte | Spain | + 10.99″ |
| 5 |  Tjaša Oder | Slovenia | + 13.74″ |
| 6 |  Ajna Késely | Hungary | + 15.11″ |
| 7 | Jimena Pérez | Spain | + 15.15″ |
| 8 | Anna Egorova | Russia | + 17.5″ |
| 9 | Anastasia Kirpichnikova | Russia | + 20.67″ |
| 10 |  Viviane Jungblut | Brazil | + 25.29″ |