Heats
vendredi 28 juillet 2017, 09h54 GMT – 09h54 GMT
| Nom | Équipe | Temps | |
|---|---|---|---|
| 1 |  Sarah Sjöström | Sweden | 25.25″ |
| 2 |  Kelsi Dahlia | United States | + 0.4″ |
| 3 |  Rikako Ikee | Japan | + 0.47″ |
| 4 | Aliena Schmidtke | Germany | + 0.48″ |
| 5 |  Ranomi Kromowidjojo | Netherlands | + 0.49″ |
| 5 | Farida Osman | Egypt | + 0.49″ |
| 7 |  Béryl Gastaldello | France | + 0.54″ |
| 8 |  Mélanie Henique | France | + 0.56″ |
| 9 | Kimberly Buys | Belgium | + 0.57″ |
| 10 |  Penny Oleksiak | Canada | + 0.62″ |
| 11 |  Emilie Beckmann | Denmark | + 0.63″ |
| 12 | Holly Barratt | Australia | + 0.66″ |
| 13 | Aleksandra Urbanczyk-Olejarczyk | Poland | + 0.75″ |
| 14 | Maaike de Waard | Netherlands | + 0.78″ |
| 15 | Silvia Di Pietro | Italy | + 0.99″ |
| 16 | Ying Lu | China | + 1.09″ |
| 17 |  Yufei Zhang | China | + 1.15″ |
| 18 | Svetlana Chimrova | Russia | + 1.24″ |
| 19 | Flóra Molnár | Hungary | + 1.26″ |
| 20 | Louise Hansson | Sweden | + 1.3″ |
| 21 | Brittany Elmslie | Australia | + 1.36″ |
| 22 | Sarah Gibson | United States | + 1.4″ |
| 22 | Ye-Rin Park | Korea | + 1.4″ |
| 22 | Nastja Govejsek | Slovenia | + 1.4″ |
| 25 | Katerine Savard | Canada | + 1.56″ |
| 26 | Amit Ivry | Israel | + 1.63″ |
| 27 |  Mimosa Jallow | Finland | + 1.64″ |
| 28 |  Lucie Svecená | Czech Republic | + 1.65″ |
| 29 |  Anna Ntountounaki | Greece | + 1.69″ |
| 30 | Gabriela Nikitina | Latvia | + 1.7″ |
| 31 | Bryndis Hansen | Iceland | + 1.9″ |
| 32 | Barbora Misendova | Slovakia | + 1.98″ |
| 33 | Amina Kajtaz | Bosnia & Herzegovina | + 2.1″ |
| 34 |  Erin Gallagher | South Africa | + 2.11″ |
| 35 | Helena Gasson | New Zealand | + 2.12″ |
| 36 | Kin Lok Chan | Hong Kong, China | + 2.22″ |
| 37 | Emily Muteti | Kenya | + 2.53″ |
| 38 | Marie Mera | Costa Rica | + 2.72″ |
| 39 | Talita Baqlah | Jordan | + 2.97″ |
| 39 | Alexandra Schegoleva | Cyprus | + 2.97″ |
| 41 | Chadé Nersicio | Curaçao | + 3.16″ |
| 42 | María José Ribera | Bolivia | + 3.23″ |
| 43 | Elinah Phillip | British Virgin Islands | + 3.26″ |
| 44 | Nicole Rautemberg | Paraguay | + 3.88″ |
| 45 | Jamila Sanmoogan | Guyana | + 4.77″ |
| 45 | Annie Hepler | Marshall Islands | + 4.77″ |
| 47 | Ana Nóbrega | Angola | + 4.93″ |
| 48 | Mishael Ayub | Pakistan | + 5.52″ |
| 49 | Hanta Valisoa Sarah Raharvel | Madagascar | + 5.64″ |
| 50 | Gabby Gittens | Antigua and Barbuda | + 6.52″ |
| 51 | Vitiny Hemthon | Cambodia | + 7.14″ |
| 52 | Faith Edorodion | Nigeria | + 7.36″ |
| 53 | Avice Meya | Uganda | + 7.8″ |
| 54 | Kestra Kihleng | Micronesia | + 7.81″ |
| 55 | Charissa Panuve | Tonga | + 8.18″ |
| 56 | Karina Klimyk | Tajikistan | + 8.3″ |
| 57 | Diana Basho | Albania | + 8.84″ |
| 58 | Ritaj Amin | Bahrain | + 10.44″ |
| 59 | Nafissath Radji | Benin | + 16.87″ |
| Pernille Blume | Denmark | DNS | |
| Alys Thomas | Great Britain | DNS | |
| Géssica Stagno | Mozambique | DNS | |
| Fatou Bintou Diagne | Senegal | DNS |