Pos. | Bateria | Raia | Nadadora | Nacionalidade | Tempo | Notas |
1 | 6 | 4 | King, LillyLilly King | Estados Unidos | 29.76 | Q |
2 | 5 | 4 | Yefimova, YuliyaYuliya Yefimova | Rússia | 29.99 | Q |
3 | 5 | 3 | Castiglioni, AriannaArianna Castiglioni | Itália | 30.33 | Q, |
4 | 6 | 5 | Meili, KatieKatie Meili | Estados Unidos | 30.37 | Q |
5 | 4 | 5 | Johansson, JennieJennie Johansson | Suécia | 30.40 | Q |
6 | 4 | 4 | Meilutytė, RūtaRūta Meilutytė | Lituânia | 30.58 | Q |
7 | 5 | 6 | Hansen, JessicaJessica Hansen | Austrália | 30.59 | Q |
8 | 5 | 5 | Vasey, SarahSarah Vasey | Reino Unido | 30.71 | Q |
9 | 4 | 2 | Ivaneeva, NataliaNatalia Ivaneeva | Rússia | 30.81 | Q |
10 | 6 | 6 | Laukkanen, JennaJenna Laukkanen | Finlândia | 30.82 | Q |
11 | 4 | 6 | Lúthersdóttir, HrafnhildurHrafnhildur Lúthersdóttir | Islândia | 30.88 | Q |
12 | 6 | 7 | Kivirinta, VeeraVeera Kivirinta | Finlândia | 30.89 | Q |
13 | 4 | 3 | Carraro, MartinaMartina Carraro | Itália | 30.92 | Q |
14 | 6 | 3 | Suzuki, SatomiSatomi Suzuki | Japão | 30.95 | Q |
15 | 5 | 1 | Nicol, RachelRachel Nicol | Canadá | 31.02 | Q |
16 | 4 | 1 | Suo Ran | China | 31.22 | Q |
17 | 6 | 8 | Pedersen , Rikke MøllerRikke Møller Pedersen | Dinamarca | 31.29 | |
18 | 4 | 7 | Sztandera, DominikaDominika Sztandera | Polónia | 31.31 | |
19 | 6 | 2 | Liver, MariyaMariya Liver | Ucrânia | 31.33 | |
20 | 5 | 2 | Hansson, SophieSophie Hansson | Suécia | 31.44 | |
21 | 5 | 7 | Ceballos, MacarenaMacarena Ceballos | Argentina | 31.65 | |
22 | 6 | 1 | Chocová, PetraPetra Chocová | Chéquia | 31.69 | |
23 | 4 | 8 | Ivry, AmitAmit Ivry | Israel | 31.70 | |
24 | 3 | 4 | Bjørnsen, SusannSusann Bjørnsen | Noruega | 31.75 | |
25 | 6 | 0 | Corbett, KayleneKaylene Corbett | África do Sul | 31.91 | |
26 | 5 | 0 | Romanjuk, MariaMaria Romanjuk | Estónia | 31.92 | |
27 | 4 | 0 | Sztankovics, AnnaAnna Sztankovics | Hungria | 31.94 | |
28 | 5 | 8 | Podmaníková, AndreaAndrea Podmaníková | Eslováquia | 32.04 | |
29 | 4 | 9 | Toledo, MercedesMercedes Toledo | Venezuela | 32.24 | |
30 | 6 | 9 | Kolidzeja, DanaDana Kolidzeja | Letônia | 32.59 | |
31 | 5 | 9 | Evato, AnandiaAnandia Evato | Indonésia | 32.62 | |
32 | 3 | 6 | Paljk, TilkaTilka Paljk | Zâmbia | 32.72 | |
33 | 3 | 2 | Micallef, AmyAmy Micallef | Malta | 33.46 | |
34 | 3 | 5 | Leter, EvitaEvita Leter | Suriname | 33.77 | |
35 | 3 | 3 | Talanova, DariyaDariya Talanova | Quirguistão | 33.85 | |
36 | 3 | 7 | Rivas, VanessaVanessa Rivas | República Dominicana | 34.40 | |
37 | 3 | 8 | Cherebin, OreoluwaOreoluwa Cherebin | Granada | 34.88 | |
38 | 3 | 1 | Mumladze, MeriMeri Mumladze | Geórgia | 34.91 | |
39 | 1 | 4 | Jang Myong-gyong | Coreia do Norte | 35.11 | |
40 | 2 | 1 | Grand'Pierre, NaomyNaomy Grand'Pierre | Haiti | 35.85 | |
41 | 2 | 3 | Khatun, MahfuzaMahfuza Khatun | Bangladesh | 36.53 | |
42 | 2 | 4 | Furgeson, ColleenColleen Furgeson | Ilhas Marshall | 36.97 | |
43 | 3 | 0 | Zhdrella, MelisaMelisa Zhdrella | Kosovo | 37.06 | |
44 | 2 | 7 | Ouedraogo, AngelikaAngelika Ouedraogo | Burquina Fasso | 37.89 | |
45 | 1 | 7 | Klimyk, KarinaKarina Klimyk | Tajiquistão | 38.47 | |
46 | 2 | 2 | Yesayan, ElenElen Yesayan | Armênia | 38.67 | |
47 | 1 | 6 | Aishath, SajinaSajina Aishath | Maldivas | 39.74 | |
48 | 2 | 0 | Budcharern, Siri ArunSiri Arun Budcharern | Laos | 40.57 | |
49 | 2 | 6 | Zangwio, LailaLaila Zangwio | Gana | 42.03 | |
50 | 1 | 1 | Mahamane, RoukayaRoukaya Mahamane | Níger | 46.49 | |
51 | 3 | 9 | Jalloh, BunturabieBunturabie Jalloh | Serra Leoa | 49.38 | |
52 | 2 | 5 | Conde, FatoumataFatoumata Conde | Guiné | 53.04 | |
| 1 | 5 | Konate, FatoumataFatoumata Konate | Mali | DNS |
1 | 2 | Diagne, FatouFatou Diagne | Senegal |
2 | 8 | Ahyee, KokoeKokoe Ahyee | Costa do Marfim |
2 | 9 | Rwabukamba, AlbertineAlbertine Rwabukamba | Ruanda | DSQ |