Heats
vendredi 3 août 2018, 11h36 GMT – 11h36 GMT
| Nom | Équipe | Temps | |
|---|---|---|---|
| 1 |  Sarah Sjöström | Sweden | 56.87″ |
| 2 |  Elena Di Liddo | Italy | + 1.04″ |
| 3 | Ilaria Bianchi | Italy | + 1.05″ |
| 4 |  Kimberly Buys | Belgium | + 1.36″ |
| 5 | Svetlana Chimrova | Russia | + 1.37″ |
| 6 |  Marie Wattel | France | + 1.6″ |
| 7 | Louise Hansson | Sweden | + 1.65″ |
| 8 |  Anna Ntountounaki | Greece | + 1.78″ |
| 9 |  Emilie Beckmann | Denmark | + 1.82″ |
| 10 | Aliena Schmidtke | Germany | + 2.02″ |
| 11 | Alys Thomas | Great Britain | + 2.06″ |
| 12 | Liliána Szilágyi | Hungary | + 2.08″ |
| 13 | Kinge Zandringa | Netherlands | + 2.13″ |
| 14 | Claudia Tarzia | Italy | + 2.67″ |
| 15 | Ana Monteiro | Portugal | + 2.76″ |
| 16 | Amina Kajtaz | Bosnia & Herzegovina | + 2.78″ |
| 17 | Charlotte Atkinson | Great Britain | + 2.79″ |
| 18 | Evelyn Verrasztó | Hungary | + 3.07″ |
| 19 | Amit Ivry | Israel | + 3.13″ |
| 20 | Emily Large | Great Britain | + 3.14″ |
| 21 |  Lucie Svecená | Czech Republic | + 3.15″ |
| 22 | Emilie Løvberg | Norway | + 3.19″ |
| 23 | Svenja Stoffel | Switzerland | + 3.59″ |
| 24 | Nida Üstündag | Turkey | + 3.74″ |
| 25 | Sara Junevik | Sweden | + 3.76″ |
| 26 | Zehra Bilgin | Turkey | + 3.78″ |
| 27 |  Dalma Sebestyén | Hungary | + 3.93″ |
| 28 | Polina Egorova | Russia | + 4.03″ |
| 29 | Anastasiya Kuliashova | Belarus | + 4.69″ |
| 30 | Imge Roza Erdemli | Turkey | + 5.25″ |
| 31 | Margaret Markvardt | Estonia | + 5.28″ |
| 32 | Claudia Hufnagl | Austria | + 5.49″ |
| 33 | Aleyna Özkan | Turkey | + 5.95″ |
| 34 | Gerda Pak | Estonia | + 6.4″ |
| 35 | Beatrice Felici | San Marino | + 6.6″ |
| 35 | Leoni Richter | Switzerland | + 6.6″ |
| 37 | Alexandra Schegoleva | Cyprus | + 6.66″ |
| Alsu Bayramova | Azerbaijan | DNS |