Heats
jeudi 25 juillet 2019, 03h00 GMT – 03h00 GMT
| Nom | Équipe | Temps | |
|---|---|---|---|
| 1 |  Simone Manuel | United States | 53.1″ |
| 2 |  Sarah Sjöström | Sweden | + 0.01″ |
| 3 |  Anna Hopkin | Great Britain | + 0.11″ |
| 4 |  Cate Campbell | Australia | + 0.26″ |
| 5 |  Femke Heemskerk | Netherlands | + 0.46″ |
| 6 | Mallory Comerford | United States | + 0.47″ |
| 7 | Emma McKeon | Australia | + 0.48″ |
| 8 |  Charlotte Bonnet | France | + 0.57″ |
| 9 | Mariya Kameneva | Russia | + 0.58″ |
| 10 |  Taylor Ruck | Canada | + 0.59″ |
| 11 | Freya Anderson | Great Britain | + 0.67″ |
| 12 | Siobhán Haughey | Hong Kong, China | + 0.71″ |
| 13 |  Béryl Gastaldello | France | + 0.85″ |
| 14 | Ranomi Kromowidjojo | Netherlands | + 0.89″ |
| 15 | Michelle Coleman | Sweden | + 0.91″ |
| 16 |  Menghui Zhu | China | + 1.15″ |
| 17 | Julie Meynen | Luxembourg | + 1.34″ |
| 18 |  Maria Ugolkova | Switzerland | + 1.44″ |
| 19 |  Barbora Seemanová | Czech Republic | + 1.52″ |
| 20 |  Erin Gallagher | South Africa | + 1.54″ |
| 21 |  Andrea Murez | Israel | + 1.57″ |
| 22 | Kasia Wasick | Poland | + 1.58″ |
| 22 |  Federica Pellegrini | Italy | + 1.58″ |
| 24 | Veronika Andrusenko | Russia | + 1.68″ |
| 25 | Neža Klancar | Slovenia | + 1.78″ |
| 26 |  Rika Omoto | Japan | + 1.79″ |
| 27 | Valentine Dumont | Belgium | + 1.8″ |
| 28 | Farida Osman | Egypt | + 1.83″ |
| 29 | Lidón Muñoz | Spain | + 2.13″ |
| 30 |  Theodora Drakou | Greece | + 2.4″ |
| 31 | Anika Apostalon | Czech Republic | + 2.41″ |
| 32 | Ting Wen Quah | Singapore | + 2.5″ |
| 33 |  Signe Bro | Denmark | + 2.55″ |
| 34 | Selen Özbilen | Turkey | + 2.61″ |
| 35 | So-Eun Jeong | Korea | + 2.76″ |
| 36 | Remedy Rule | Philippines | + 3.03″ |
| 37 | Ieva Maluka | Latvia | + 3.09″ |
| 38 | Aksana Dziamidava | Belarus | + 3.23″ |
| 39 | Kalia Antoniou | Cyprus | + 3.43″ |
| 40 | Aleksa Gold | Estonia | + 3.52″ |
| 41 | Anicka Delgado | Ecuador | + 3.57″ |
| 42 | Elan Daley | Bermuda | + 3.9″ |
| 43 | Snæfriður Jórunnardóttir | Iceland | + 4.24″ |
| 44 | Karen Torrez | Bolivia | + 4.27″ |
| 45 | Sirena Rowe | Colombia | + 4.32″ |
| 46 | Allyson Ponson | Aruba | + 4.57″ |
| 47 | Matelita Buadromo | Fiji | + 4.83″ |
| 48 | Talita Baqlah | Jordan | + 4.96″ |
| 49 | Mariel Mencia | Dominican Republic | + 5.72″ |
| 50 | Gabriela Santis | Guatemala | + 5.83″ |
| 51 | Maria Brunlehner | Kenya | + 5.98″ |
| 51 | Maria Schutzmeier | Nicaragua | + 5.98″ |
| 53 | Natalya Kritinina | Uzbekistan | + 6.09″ |
| 54 | Catarina Sousa | Angola | + 6.18″ |
| 55 | Mya Azzopardi | Malta | + 6.27″ |
| 56 | Lauren Hew | Cayman Islands | + 6.47″ |
| 57 | Nikol Merizaj | Albania | + 6.5″ |
| 58 | Inés Remersaro | Uruguay | + 6.59″ |
| 59 | Enkhkhuslen Batbayar | Mongolia | + 6.66″ |
| 60 | Jeanne Boutbien | Senegal | + 6.69″ |
| 61 | Ani Poghosyan | Armenia | + 6.79″ |
| 62 | Lina Khiyara | Morocco | + 6.83″ |
| 63 | Mariam Imnadze | Georgia | + 6.87″ |
| 64 | Catharine Cooper | Panama | + 6.98″ |
| 65 | Mikaili Charlemagne | St. Lucia | + 7.17″ |
| 66 | Kaya Forson | Ghana | + 7.19″ |
| 67 | Paige van der Westhuizen | Zimbabwe | + 7.37″ |
| 68 | Samantha Roberts | Antigua and Barbuda | + 7.43″ |
| 69 | Gaurika Singh | Nepal | + 7.52″ |
| 70 | Anastasiya Filina | Kyrgyzstan | + 7.97″ |
| 71 | Abiola Ogunbanwo | Nigeria | + 8.21″ |
| 72 | Andjela Antunovic | Montenegro | + 8.28″ |
| 73 | Yusra Mardini | + 8.65″ | |
| 74 | Fjorda Shabani | Kosovo | + 8.95″ |
| 75 | Georgia-Leigh Vele | Papua New Guinea | + 9.35″ |
| 76 | Ssubi Katumba | Uganda | + 10.78″ |
| 76 | Latroya Pina | Cape Verde | + 10.78″ |
| 78 | Mya DeFreitas | St. Vincent & the Grenadines | + 10.81″ |
| 79 | Mineri Gomez | Guam | + 12.01″ |
| 80 | Mishael Ayub | Pakistan | + 12.48″ |
| 81 | Alaa Binrajab | Bahrain | + 13.98″ |
| 81 | Margie Winter | Micronesia | + 13.98″ |
| 83 | Osisang Chilton | Palau | + 14.26″ |
| 84 | Charissa Panuve | Tonga | + 14.9″ |
| 85 | Jennifer Harding-Marlin | St. Kitts & Nevis | + 14.95″ |
| 86 | Ekaterina Bordachyova | Tajikistan | + 17.03″ |
| 87 | Jinju Thompson | Northern Mariana Islands | + 17.21″ |
| 88 | Nada Arkaji | Qatar | + 19.81″ |
| 89 | Tayamika Chang'Anamuno | Malawi | + 20.36″ |
| 90 | Lina Selo | Ethiopia | + 21.78″ |
| 91 | Imelda Belo | East Timor | + 24.93″ |
| 92 | Moussa Roukaya | Niger | + 28.41″ |
| 93 | Haneen Ibrahim | Sudan | + 29.08″ |
| Penny Oleksiak | Canada | DNF | |
| Evelyn Verrasztó | Hungary | DNF | |
| Junxuan Yang | China | DNF |