Heats
vendredi 26 juillet 2019, 04h11 GMT – 04h11 GMT
| Nom | Équipe | Temps | |
|---|---|---|---|
| 1 |  Sarah Sjöström | Sweden | 25.39″ |
| 2 |  Kelsi Dahlia | United States | + 0.31″ |
| 3 | Farida Osman | Egypt | + 0.32″ |
| 4 |  Penny Oleksiak | Canada | + 0.34″ |
| 5 |  Ranomi Kromowidjojo | Netherlands | + 0.47″ |
| 6 | Louise Hansson | Sweden | + 0.58″ |
| 7 |  Elena Di Liddo | Italy | + 0.64″ |
| 8 |  Marie Wattel | France | + 0.68″ |
| 9 |  Jeanette Ottesen | Denmark | + 0.7″ |
| 10 | Yichun Wang | China | + 0.74″ |
| 11 |  Brianna Throssell | Australia | + 0.75″ |
| 11 |  Yufei Zhang | China | + 0.75″ |
| 11 | Maggie MacNeil | Canada | + 0.75″ |
| 14 | Kimberly Buys | Belgium | + 0.84″ |
| 15 |  Anna Ntountounaki | Greece | + 0.87″ |
| 16 | Arina Surkova | Russia | + 0.93″ |
| 17 | Emilie Beckmann | Denmark | + 0.93″ |
| 18 | Maaike de Waard | Netherlands | + 1.01″ |
| 19 |  Erin Gallagher | South Africa | + 1.06″ |
| 20 |  Mimosa Jallow | Finland | + 1.23″ |
| 21 | Svetlana Chimrova | Russia | + 1.25″ |
| 22 | Angelina Köhler | Germany | + 1.26″ |
| 23 |  Anastasya Gorbenko | Israel | + 1.31″ |
| 24 | Ye-Rin Park | Korea | + 1.36″ |
| 25 | Sasha Touretski | Switzerland | + 1.5″ |
| 25 | Mei Chien Huang | Chinese Taipei | + 1.5″ |
| 27 | Ting Wen Quah | Singapore | + 1.53″ |
| 28 | Jenjira Srisa-Ard | Thailand | + 1.54″ |
| 29 | Beatrix Bordás | Hungary | + 1.59″ |
| 30 | Aleyna Özkan | Turkey | + 1.61″ |
| 31 | Sirena Rowe | Colombia | + 1.63″ |
| 32 | Paulina Nogaj | Poland | + 1.69″ |
| 33 | Kin Lok Chan | Hong Kong, China | + 1.78″ |
| 34 | Gabriela Nikitina | Latvia | + 2.09″ |
| 34 | Anicka Delgado | Ecuador | + 2.09″ |
| 36 | Alia Atkinson | Jamaica | + 2.1″ |
| 37 | Alexandra Schegoleva | Cyprus | + 2.35″ |
| 38 | Maddy Moore | Bermuda | + 2.63″ |
| 39 | Alexis Margett | Bolivia | + 2.82″ |
| 40 | Maria Schutzmeier | Nicaragua | + 2.95″ |
| 41 | Chadé Nersicio | Curaçao | + 3.06″ |
| 42 | Mikaili Charlemagne | St. Lucia | + 3.85″ |
| 43 | Varsenik Manucharyan | Armenia | + 4.26″ |
| 44 | Sophia Diagne | Senegal | + 4.51″ |
| 45 | Georgia-Leigh Vele | Papua New Guinea | + 4.68″ |
| 46 | Aaliyah Palestrini | Seychelles | + 4.79″ |
| 47 | Jamila Sanmoogan | Guyana | + 4.82″ |
| 48 | Élodie Poo-Cheong | Mauritius | + 4.87″ |
| 49 | Aniqah Gaffoor | Sri Lanka | + 4.97″ |
| 50 | Ann-Marie Hepler | Marshall Islands | + 5.38″ |
| 51 | Enkhzul Khuagbaatar | Mongolia | + 5.41″ |
| 52 | Olivia Fuller | Antigua and Barbuda | + 5.49″ |
| 53 | Dirngulbai Misech | Palau | + 5.75″ |
| 54 | Taffi Illis | Sint Maarten | + 5.94″ |
| 55 | Sofia Shah | Nepal | + 6.65″ |
| 56 | Vitiny Hemthon | Cambodia | + 6.99″ |
| 57 | Ssubi Katumba | Uganda | + 7.38″ |
| 58 | Anastasiya Tyurina | Tajikistan | + 7.78″ |
| 59 | Aika Watanabe | Northern Mariana Islands | + 8.04″ |
| 60 | Dania Nour | Palestine | + 8.91″ |
| 61 | Domingas Munhemeze | Mozambique | + 9.14″ |
| 62 | Lucie Kouadio-Patinier | Ivory Coast | + 10.04″ |
| 63 | Rahel Gebresilassie | Ethiopia | + 10.98″ |
| 64 | Tity Dumbuya | Sierra Leone | + 12.51″ |