Heats
mercredi 12 décembre 2018, 03h54 GMT – 03h54 GMT
| Nom | Équipe | Temps | |
|---|---|---|---|
| 1 |  Kelsi Dahlia | United States | 2′ 3.51″ |
| 2 |  Katinka Hosszú | Hungary | + 1.17″ |
| 3 | Lara Grangeon | France | + 1.6″ |
| 4 |  Suzuka Hasegawa | Japan | + 1.68″ |
| 5 | Nao Kobayashi | Japan | + 1.77″ |
| 6 |  Yufei Zhang | China | + 2.48″ |
| 7 |  Ilaria Bianchi | Italy | + 2.89″ |
| 8 | Ana Monteiro | Portugal | + 2.98″ |
| 9 | Svetlana Chimrova | Russia | + 3.06″ |
| 10 | Nida Üstündag | Turkey | + 4.23″ |
| 11 | Catalina Corró | Spain | + 4.47″ |
| 12 | Yuhan Zhang | China | + 5.06″ |
| 13 | Emilie Løvberg | Norway | + 5.11″ |
| 14 | Claudia Hufnagl | Austria | + 7.2″ |
| 15 | Kin Lok Chan | Hong Kong, China | + 7.72″ |
| 15 | Isabella Páez | Venezuela | + 7.72″ |
| 17 | Barbora Závadová | Czech Republic | + 8.61″ |
| 18 | Amina Kajtaz | Bosnia & Herzegovina | + 9.44″ |
| 19 | Imge Roza Erdemli | Turkey | + 10.57″ |
| 20 |  Anna Ntountounaki | Greece | + 11.07″ |
| 21 | Nicholle Toh | Singapore | + 11.78″ |
| 22 | Alsu Bayramova | Azerbaijan | + 12.65″ |
| 23 | Daniela Alfaro | Costa Rica | + 13.19″ |
| 24 | Vanessa Ouwehand | New Zealand | + 14.01″ |
| 25 | Hye Gyong Ri | DPR Korea | + 15.12″ |
| 26 | Sára Niepelová | Slovakia | + 15.55″ |
| 27 | Lara Aklouk | Jordan | + 21.72″ |
| 28 | Natalia Kuipers | Virgin Islands | + 25.73″ |