Pos. | Bateria | Raia | Nadadora | Nacionalidade | Tempo | Notas |
1 | 7 | 4 | Fu Yuanhui | China | 27.21 | Q |
2 | 6 | 4 | Herasimenia, AliaksandraAliaksandra Herasimenia | Bielorrússia | 27.65 | Q |
6 | 5 | Medeiros, EtieneEtiene Medeiros | Brasil | Q |
4 | 7 | 6 | Davies, GeorgiaGeorgia Davies | Reino Unido | 27.73 | Q |
5 | 7 | 5 | Barratt, HollyHolly Barratt | Austrália | 27.75 | Q |
6 | 5 | 4 | Wang Xueer | China | 27.85 | Q |
7 | 5 | 5 | Stevens, HannahHannah Stevens | Estados Unidos | 27.89 | Q |
8 | 6 | 6 | Seebohm, EmilyEmily Seebohm | Austrália | 27.91 | Q |
9 | 6 | 3 | Baker, KathleenKathleen Baker | Estados Unidos | 27.94 | Q |
10 | 5 | 3 | Fesikova, AnastasiaAnastasia Fesikova | Rússia | 27.96 | Q |
5 | 7 | Berrino, AndreaAndrea Berrino | Argentina | Q, |
12 | 6 | 1 | Jallow, MimosaMimosa Jallow | Finlândia | 28.05 | Q, |
13 | 7 | 3 | Masse, KylieKylie Masse | Canadá | 28.10 | Q |
14 | 4 | 4 | Tchórz, AlicjaAlicja Tchórz | Polónia | 28.13 | Q |
15 | 7 | 2 | Baumrtová, SimonaSimona Baumrtová | Chéquia | 28.15 | Q |
16 | 7 | 7 | Drakou, TheodoraTheodora Drakou | Grécia | 28.22 | Q |
17 | 6 | 2 | Toussaint, KiraKira Toussaint | Países Baixos | 28.30 | |
18 | 6 | 9 | Yu Hyoun-ji | Coreia do Sul | 28.31 | |
19 | 5 | 6 | de Waard, MaaikeMaaike de Waard | Países Baixos | 28.42 | |
19 | 7 | 1 | Dawson, KathleenKathleen Dawson | Reino Unido | 28.42 | |
21 | 6 | 7 | Lindborg, IdaIda Lindborg | Suécia | 28.44 | |
22 | 7 | 0 | Pilhatsch, CarolineCaroline Pilhatsch | Áustria | 28.45 | |
23 | 5 | 2 | Fa'amausili, GabrielleGabrielle Fa'amausili | Nova Zelândia | 28.47 | |
24 | 7 | 8 | Urbańczyk, AleksandraAleksandra Urbańczyk | Polónia | 28.49 | |
25 | 5 | 0 | Park Han-byeol | Coreia do Sul | 28.52 | |
26 | 4 | 6 | Jónsdóttir, IngibjörgIngibjörg Jónsdóttir | Islândia | 28.53 | |
27 | 4 | 3 | Arcila, IsabellaIsabella Arcila | Colômbia | 28.59 | |
28 | 4 | 5 | González, FernandaFernanda González | México | 28.67 | |
29 | 5 | 1 | Listopadová, KatarínaKatarína Listopadová | Eslováquia | 28.68 | |
30 | 5 | 8 | Ustinova, DariaDaria Ustinova | Rússia | 28.73 | |
31 | 6 | 8 | Zevina, DarynaDaryna Zevina | Ucrânia | 28.78 | |
32 | 7 | 9 | Cini, MathildeMathilde Cini | França | 28.79 | |
33 | 4 | 2 | Jóo, SáraSára Jóo | Hungria | 28.91 | |
34 | 6 | 0 | Avramova, EkaterinaEkaterina Avramova | Turquia | 29.11 | |
35 | 3 | 5 | Ruele, NaomiNaomi Ruele | Botswana | 29.21 | |
36 | 3 | 4 | Sepp, SigridSigrid Sepp | Estónia | 29.24 | |
37 | 4 | 8 | Toto Wong | Hong Kong | 29.27 | |
38 | 4 | 9 | Georgieva, GabrielaGabriela Georgieva | Bulgária | 29.29 | |
39 | 4 | 0 | Chen Szu-chi | Taipé Chinesa | 29.42 | |
40 | 4 | 7 | Pinto, JeserikJeserik Pinto | Venezuela | 29.50 | |
41 | 5 | 9 | Rudenko, YekaterinaYekaterina Rudenko | Cazaquistão | 29.51 | |
42 | 3 | 6 | Stickland, LushavelLushavel Stickland | Samoa | 30.04 | |
43 | 3 | 3 | Passon, FelicityFelicity Passon | Seicheles | 30.32 | |
44 | 4 | 1 | Steina, KristinaKristina Steina | Letônia | 30.36 | |
45 | 3 | 7 | Marquez, CelinaCelina Marquez | El Salvador | 30.38 | |
46 | 3 | 2 | Antoniou, KaliaKalia Antoniou | Chipre | 30.59 | |
47 | 1 | 5 | Getrouw, XiomaraXiomara Getrouw | Suriname | 30.74 | |
48 | 3 | 8 | Fahsi, HibaHiba Fahsi | Marrocos | 30.75 | |
49 | 3 | 9 | Cermelli, CarolinaCarolina Cermelli | Panamá | 30.77 | |
50 | 2 | 8 | Ramírez, MónicaMónica Ramírez | Andorra | 30.96 | |
51 | 3 | 1 | Vilorio, KarenKaren Vilorio | Honduras | 31.10 | |
52 | 2 | 4 | Razafy, Elodie MarionElodie Marion Razafy | Madagáscar | 31.26 | |
53 | 1 | 4 | Ribera, María JoséMaría José Ribera | Bolívia | 31.53 | |
54 | 3 | 0 | Rizkallah, JenniferJennifer Rizkallah | Líbano | 31.65 | |
55 | 2 | 5 | Goginashvili, RusudanRusudan Goginashvili | Geórgia | 31.97 | |
56 | 2 | 7 | Sousa, CatarinaCatarina Sousa | Angola | 32.24 | |
57 | 1 | 3 | Joassaint, BrithenyBritheny Joassaint | Haiti | 32.45 | |
58 | 2 | 9 | Cossa, GiselaGisela Cossa | Moçambique | 34.11 | |
59 | 2 | 3 | Gittens, GabbyGabby Gittens | Antígua e Barbuda | 34.16 | |
60 | 2 | 1 | Young, RobynRobyn Young | Essuatíni | 35.46 | |
61 | 2 | 6 | Poppe, AmandaAmanda Poppe | Guam | 35.64 | |
62 | 1 | 6 | Chang'anamuno, TayamikaTayamika Chang'anamuno | Malawi | 37.87 | |
63 | 2 | 2 | Andhumdine, Nazlati MohamedNazlati Mohamed Andhumdine | Comores | 48.32 | |