Heats
jeudi 23 août 2018
| Nom | Équipe | Temps | |
|---|---|---|---|
| 1 |  Dorota Borowska | Poland | 49.221″ |
| 2 |  Laurence Vincent-Lapointe | Canada | + 0.12″ |
| 3 |  Staniliya Stamenova | Bulgaria | + 0.71″ |
| 4 | Luqi Zhang | China | + 0.813″ |
| 5 |  Alena Nazdrova | Belarus | + 0.91″ |
| 6 | Olesia Romasenko | Russia | + 1.473″ |
| 7 |  Virag Balla | Hungary | + 2.203″ |
| 8 |  Lisa Jahn | Germany | + 3.423″ |
| 9 |  Liudmyla Luzan | Ukraine | + 3.583″ |
| 10 | Mariam Kerdikoshvii | Georgia | + 3.666″ |
| 11 | Eugénie Dorange | France | + 4.138″ |
| 12 | Ruta Dagyte | Lithuania | + 4.495″ |
| 13 | Gabriela Ladicova | Slovakia | + 4.506″ |
| 14 |  Katie Reid | Great Britain | + 4.958″ |
| 15 |  Josephine Bulmer | Australia | + 5.086″ |
| 16 | Valdenice Conceicao Nascimento | Brazil | + 5.199″ |
| 17 | Jana Jezova | Czech Republic | + 5.181″ |
| 18 | Anggie Avegno | Ecuador | + 5.296″ |
| 19 |  Antia Jacome | Spain | + 5.516″ |
| 20 | Vanesa Tot | Croatia | + 6.039″ |
| 21 | Ann Armstrong | United States | + 6.431″ |
| 22 | Nikolina Mijuskovic | Serbia | + 6.724″ |
| 23 | Julija Gutova | Latvia | + 6.925″ |
| 24 | Daniela Cociu | Moldova | + 7.164″ |
| 25 | Sayako Shimazu | Japan | + 7.974″ |
| 26 | Márcia Faria | Portugal | + 8.485″ |
| 27 | Ming Yu Law | Hong Kong, China | + 9.239″ |
| 28 | Oulimata Fall | Senegal | + 11.349″ |
| Ana Leydy Daza Ochoa | Colombia | DNF |