Heats
samedi 27 juillet 2019, 03h00 GMT – 03h00 GMT
| Nom | Équipe | Temps | |
|---|---|---|---|
| 1 |  Sarah Sjöström | Sweden | 24.26″ |
| 2 |  Cate Campbell | Australia | + 0.14″ |
| 3 |  Simone Manuel | United States | + 0.15″ |
| 4 |  Mariya Kameneva | Russia | + 0.18″ |
| 4 |  Pernille Blume | Denmark | + 0.18″ |
| 6 | Abbey Weitzeil | United States | + 0.21″ |
| 7 |  Ranomi Kromowidjojo | Netherlands | + 0.3″ |
| 8 | Xiang Liu | China | + 0.35″ |
| 9 | Bronte Campbell | Australia | + 0.48″ |
| 10 | Femke Heemskerk | Netherlands | + 0.54″ |
| 11 | Anna Hopkin | Great Britain | + 0.59″ |
| 12 | Michelle Coleman | Sweden | + 0.69″ |
| 13 | Lidón Muñoz | Spain | + 0.7″ |
| 14 | Kasia Wasick | Poland | + 0.71″ |
| 15 | Julie Jensen | Denmark | + 0.76″ |
| 16 | Julie Meynen | Luxembourg | + 0.81″ |
| 17 |  Federica Pellegrini | Italy | + 0.82″ |
| 18 | Neža Klancar | Slovenia | + 0.86″ |
| 19 |  Qingfeng Wu | China | + 0.89″ |
| 20 |  Rika Omoto | Japan | + 0.91″ |
| 21 |  Theodora Drakou | Greece | + 0.93″ |
| 21 | Arina Surkova | Russia | + 0.93″ |
| 23 |  Etiene Medeiros | Brazil | + 1″ |
| 24 |  Anika Apostalon | Czech Republic | + 1.04″ |
| 25 |  Andrea Murez | Israel | + 1.14″ |
| 25 | So-Eun Jeong | Korea | + 1.14″ |
| 27 |  Erin Gallagher | South Africa | + 1.22″ |
| 28 | Ting Wen Quah | Singapore | + 1.24″ |
| 29 |  Mimosa Jallow | Finland | + 1.4″ |
| 30 | Nina Kost | Switzerland | + 1.48″ |
| 31 | Selen Özbilen | Turkey | + 1.57″ |
| 32 | Kalia Antoniou | Cyprus | + 1.6″ |
| 33 | Cherelle Thompson | Trinidad & Tobago | + 1.63″ |
| 34 | Remedy Rule | Philippines | + 1.66″ |
| 35 | Gabriela Nikitina | Latvia | + 1.7″ |
| 36 | Karen Torrez | Bolivia | + 1.75″ |
| 37 | Chelsey Edwards | New Zealand | + 1.79″ |
| 38 | Allyson Ponson | Aruba | + 1.8″ |
| 39 | Talita Baqlah | Jordan | + 1.87″ |
| 40 | On Kei Lei | Macau, China | + 2.08″ |
| 41 | Felicity Passon | Seychelles | + 2.09″ |
| 42 | Natalya Kritinina | Uzbekistan | + 2.21″ |
| 43 | Maddy Moore | Bermuda | + 2.22″ |
| 44 | Lushavel Stickland | Samoa | + 2.51″ |
| 45 | Mariel Mencia | Dominican Republic | + 2.55″ |
| 45 | Emily Muteti | Kenya | + 2.55″ |
| 47 | Catharine Cooper | Panama | + 2.62″ |
| 48 | Matelita Buadromo | Fiji | + 2.74″ |
| 49 | Chadé Nersicio | Curaçao | + 2.87″ |
| 50 | Mònica Ramírez | Andorra | + 2.91″ |
| 51 | Lauren Hew | Cayman Islands | + 3″ |
| 52 | Samantha Roberts | Antigua and Barbuda | + 3.01″ |
| 53 | Jeanne Boutbien | Senegal | + 3.07″ |
| 54 | Nikol Merizaj | Albania | + 3.14″ |
| 55 | Inés Remersaro | Uruguay | + 3.15″ |
| 56 | Varsenik Manucharyan | Armenia | + 3.28″ |
| 57 | Kimiko Raheem | Sri Lanka | + 3.3″ |
| 58 | Enkhkhuslen Batbayar | Mongolia | + 3.4″ |
| 59 | Naima Hazell | St. Lucia | + 3.59″ |
| 59 | Marie Khoury | Lebanon | + 3.59″ |
| 61 | Mariam Imnadze | Georgia | + 3.69″ |
| 62 | Bisma Khan | Pakistan | + 3.79″ |
| 63 | Lina Khiyara | Morocco | + 3.91″ |
| 64 | Judith Meauri | Papua New Guinea | + 4.04″ |
| 65 | Daila Ismatul | Guatemala | + 4.05″ |
| 66 | Fjorda Shabani | Kosovo | + 4.08″ |
| 67 | Noelani Day | Tonga | + 4.41″ |
| 68 | Jamila Sanmoogan | Guyana | + 4.46″ |
| 69 | Dirngulbai Misech | Palau | + 4.62″ |
| 70 | Anastasiya Filina | Kyrgyzstan | + 4.73″ |
| 71 | Sofia Shah | Nepal | + 4.79″ |
| 72 | Naomy Grand-Pierre | Haiti | + 4.81″ |
| 73 | Camille Koenig | Mauritius | + 4.88″ |
| 74 | Latroya Pina | Cape Verde | + 5.08″ |
| 75 | Avice Meya | Uganda | + 5.23″ |
| 76 | Alaa Binrajab | Bahrain | + 5.29″ |
| 77 | Angelika Ouedraogo | Burkina Faso | + 5.34″ |
| 78 | Ann-Marie Hepler | Marshall Islands | + 5.37″ |
| 79 | Taffi Illis | Sint Maarten | + 5.5″ |
| 80 | Margie Winter | Micronesia | + 5.54″ |
| 81 | Ammara Pinto | Malawi | + 5.72″ |
| 81 | Anastasiya Tyurina | Tajikistan | + 5.72″ |
| 83 | Vitiny Hemthon | Cambodia | + 5.75″ |
| 84 | Dania Nour | Palestine | + 6.2″ |
| 85 | Nafissath Radji | Benin | + 6.59″ |
| 86 | Junayna Ahmed | Bangladesh | + 6.7″ |
| 87 | Domingas Munhemeze | Mozambique | + 6.72″ |
| 88 | Siri Arun Budcharern | Laos | + 7.06″ |
| 89 | Sylvia Caloiaro | Tanzania | + 7.25″ |
| 90 | Nada Arkaji | Qatar | + 7.31″ |
| 91 | Chloé Sauvourel | Central African Republic | + 7.9″ |
| 92 | Rahel Gebresilassie | Ethiopia | + 8.1″ |
| 93 | Aya Mpali | Gabon | + 8.42″ |
| 94 | Moussa Roukaya | Niger | + 9.45″ |
| 95 | Imelda Belo | East Timor | + 10.38″ |
| 96 | Haneen Ibrahim | Sudan | + 10.55″ |
| 97 | Tity Dumbuya | Sierra Leone | + 10.59″ |
| 98 | Odrina Kaze | Burundi | + 10.71″ |
| 99 | Safia Houssein Barkat | Djibouti | + 12.9″ |
| 100 | Ida Cham | Gambia | + 21.18″ |
| Naomi Ruele | Botswana | DNF | |
| Farida Osman | Egypt | DNF | |
 Charlotte Bonnet | France | DNF | |
| Juanita Ndong | Equatorial Guinea | DQ | |
 Kayla Sanchez | Canada | DNF | |
| Grace Kadje | Togo | DNF |