Heat 4
jeudi 13 décembre 2018, 03h44 GMT – 03h44 GMT
| Nom | Équipe | Temps | |
|---|---|---|---|
| 1 |  Lisa Bratton | United States | 2′ 1″ |
| 2 |  Emily Seebohm | Australia | + 1.68″ |
| 3 | Sayaka Akase | Japan | + 2.87″ |
| 4 | Minna Atherton | Australia | + 2.98″ |
| 5 | Andrea Berrino | Argentina | + 7.02″ |
| 6 | Gabriela Georgieva | Bulgaria | + 9.42″ |
| 7 | Krystal Lara | Dominican Republic | + 9.92″ |
| 8 | Signhild Joensen | Faroe Islands | + 11.4″ |
| 9 | Elizaveta Rogozhnikova | Kyrgyzstan | + 17.82″ |
 Michelle Coleman | Sweden | DNS |