# Swimming at the 2013 World Aquatics Championships – Women's 100 metre breaststroke

The women's 100 metre breaststroke event in swimming at the 2013 World Aquatics Championships took place on 29–30 July at the Palau Sant Jordi in Barcelona, Spain.

## Records

Prior to this competition, the existing world and championship records were:
| World record | Jessica Hardy (USA) | 1:04.45 | Federal Way, United States | 7 August 2009 |
| Competition record | Rebecca Soni (USA) | 1:04.84 | Rome, Italy | 27 July 2009 |
The following new records were set during this competition.
| Date | Event | Name | Nationality | Time | Record |
| 29 July | Heats | Rūta Meilutytė | Lithuania | 1:04.52 | CR |
| 29 July | Semifinal 2 | Rūta Meilutytė | Lithuania | 1:04.35 | WR |

## Results
### Heats

The heats were held at 10:30.
| Rank | Heat | Lane | Name | Nationality | Time | Notes |
| 1 | 7 | 4 | Rūta Meilutytė | Lithuania | 1:04.52 | Q, CR, ER |
| 2 | 7 | 5 | Jessica Hardy | United States | 1:05.18 | Q |
| 3 | 5 | 5 | Yuliya Yefimova | Russia | 1:05.24 | Q, NR |
| 4 | 6 | 4 | Rikke Møller Pedersen | Denmark | 1:06.30 | Q |
| 5 | 6 | 3 | Viktoriya Solnceva | Ukraine | 1:06.79 | Q, NR |
| 6 | 5 | 4 | Breeja Larson | United States | 1:06.83 | Q |
| 7 | 6 | 1 | Marina García | Spain | 1:07.18 | Q, NR |
| 8 | 7 | 3 | Jennie Johansson | Sweden | 1:07.21 | Q |
| 9 | 6 | 6 | Sally Foster | Australia | 1:07.59 | Q |
| 10 | 5 | 3 | Alia Atkinson | Jamaica | 1:07.76 | Q |
| 11 | 6 | 5 | Satomi Suzuki | Japan | 1:07.79 | Q |
| 12 | 5 | 1 | Fiona Doyle | Ireland | 1:07.88 | Q |
| 13 | 5 | 7 | Petra Chocová | Czech Republic | 1:08.18 | Q, NR |
| 14 | 7 | 6 | Moniek Nijhuis | Netherlands | 1:08.29 | Q |
| 15 | 6 | 2 | Samantha Marshall | Australia | 1:08.33 | Q |
| 16 | 5 | 0 | Kim Janssens | Belgium | 1:08.36 | Q, NR |
| 17 | 7 | 7 | Sun Ye | China | 1:08.49 | |
| 18 | 4 | 3 | Amit Ivry | Israel | 1:08.52 | NR |
| 19 | 7 | 8 | Lisa Fissneider | Italy | 1:08.53 | |
| 20 | 5 | 8 | Shi Jinglin | China | 1:08.59 | |
| 20 | 7 | 9 | Jenna Laukkanen | Finland | 1:08.59 | NR |
| 22 | 5 | 2 | Sophie Allen | Great Britain | 1:08.62 | |
| 22 | 7 | 0 | Caroline Ruhnau | Germany | 1:08.62 | |
| 24 | 6 | 8 | Joline Höstman | Sweden | 1:08.63 | |
| 25 | 6 | 7 | Anna Belousova | Russia | 1:08.69 | |
| 26 | 5 | 9 | Back Su-Yeon | South Korea | 1:09.11 | |
| 27 | 5 | 6 | Kanako Watanabe | Japan | 1:09.28 | |
| 28 | 7 | 2 | Tera van Beilen | Canada | 1:09.45 | |
| 29 | 7 | 1 | Michela Guzzetti | Italy | 1:09.54 | |
| 30 | 4 | 4 | Hrafnhildur Lúthersdóttir | Iceland | 1:09.75 | |
| 31 | 6 | 0 | Mariia Liver | Ukraine | 1:09.95 | |
| 32 | 4 | 5 | Tara-Lynn Nicholas | South Africa | 1:10.22 | |
| 33 | 3 | 4 | Yvette Man Yi Kong | Hong Kong | 1:10.37 | |
| 34 | 4 | 6 | Julia Sebastian | Argentina | 1:10.56 | |
| 35 | 4 | 2 | Erica Dittmer | Mexico | 1:10.82 | |
| 36 | 4 | 7 | Samantha Yeo | Singapore | 1:11.17 | |
| 37 | 4 | 1 | Siow Yi Ting | Malaysia | 1:11.25 | |
| 37 | 4 | 0 | Alona Ribakova | Latvia | 1:11.25 | |
| 39 | 6 | 9 | Beatriz Travalon | Brazil | 1:11.39 | |
| 40 | 4 | 9 | Caroline Reitshammer | Austria | 1:11.43 | |
| 41 | 1 | 3 | Dariya Talanova | Kyrgyzstan | 1:11.45 | NR |
| 42 | 4 | 8 | Zuzana Mimovicova | Slovakia | 1:11.67 | |
| 43 | 3 | 5 | Ioana Alexandra Popa | Romania | 1:11.81 | |
| 44 | 3 | 7 | Daniela Lindemeier | Namibia | 1:12.06 | |
| 45 | 3 | 3 | Ivana Ninković | Bosnia and Herzegovina | 1:12.39 | |
| 46 | 3 | 6 | Chen I-chuan | Chinese Taipei | 1:13.25 | |
| 47 | 3 | 1 | Tatiana Chişca | Moldova | 1:14.11 | |
| 48 | 2 | 6 | Vanessa Rivas | Dominican Republic | 1:14.77 | NR |
| 49 | 3 | 8 | Evita Leter | Suriname | 1:15.31 | |
| 50 | 3 | 2 | Irene Chrysostomou | Cyprus | 1:15.45 | |
| 51 | 2 | 3 | Barbara Vali-Skelton | Papua New Guinea | 1:16.03 | |
| 52 | 3 | 0 | Jamila Lunkuse | Uganda | 1:16.15 | |
| 53 | 2 | 4 | Natalia Gomez | Costa Rica | 1:16.96 | |
| 54 | 2 | 7 | Lianna Swan | Pakistan | 1:19.61 | NR |
| 55 | 2 | 2 | Rachael Tonjor | Nigeria | 1:19.81 | |
| 56 | 2 | 5 | Chade Nersicio | Netherlands Antilles | 1:21.47 | |
| 57 | 2 | 8 | Bonita Imsirovic | Botswana | 1:21.97 | |
| 58 | 2 | 1 | Mira Shami | Jordan | 1:22.05 | |
| 59 | 1 | 4 | Shne Joachim | Saint Vincent and the Grenadines | 1:23.09 | |
| 60 | 1 | 5 | Charmel Sogbadji | Benin | 1:43.41 | |
| 60 | 1 | 6 | Ramatoulaye Camara | Guinea | 1:43.41 | |
| | 3 | 9 | Ngô Thị Ngọc Quỳnh | Vietnam | | DNS |

### Semifinals

The semifinals were held at 18:29.

#### Semifinal 1

| Rank | Lane | Name | Nationality | Time | Notes |
| 1 | 5 | Rikke Møller Pedersen | Denmark | 1:05.99 | Q |
| 2 | 4 | Jessica Hardy | United States | 1:06.10 | Q |
| 3 | 3 | Breeja Larson | United States | 1:06.61 | Q |
| 4 | 6 | Jennie Johansson | Sweden | 1:06.96 | Q, NR |
| 5 | 2 | Alia Atkinson | Jamaica | 1:07.63 | |
| 6 | 1 | Moniek Nijhuis | Netherlands | 1:07.77 | |
| 7 | 7 | Fiona Doyle | Ireland | 1:07.81 | |
| 8 | 8 | Kim Janssens | Belgium | 1:08.73 | |

#### Semifinal 2

| Rank | Lane | Name | Nationality | Time | Notes |
| 1 | 4 | Rūta Meilutytė | Lithuania | 1:04.35 | Q, WR |
| 2 | 5 | Yuliya Yefimova | Russia | 1:05.29 | Q |
| 3 | 3 | Viktoriya Solnceva | Ukraine | 1:06.67 | Q, NR |
| 4 | 6 | Marina García | Spain | 1:07.12 | Q, NR |
| 5 | 7 | Satomi Suzuki | Japan | 1:07.83 | |
| 6 | 2 | Sally Foster | Australia | 1:08.04 | |
| 7 | 1 | Petra Chocová | Czech Republic | 1:08.10 | |
| 8 | 8 | Samantha Marshall | Australia | 1:08.31 | |

### Final

The final was held at 19:48.
| Rank | Lane | Name | Nationality | Time | Notes |
| | 4 | Rūta Meilutytė | Lithuania | 1:04.42 | |
| | 5 | Yuliya Yefimova | Russia | 1:05.02 | NR |
| | 6 | Jessica Hardy | United States | 1:05.52 | |
| 4 | 3 | Rikke Møller Pedersen | Denmark | 1:05.93 | |
| 5 | 2 | Breeja Larson | United States | 1:06.74 | |
| 6 | 7 | Viktoriya Solnceva | Ukraine | 1:06.81 | |
| 7 | 8 | Marina García | Spain | 1:07.08 | NR |
| 8 | 1 | Jennie Johansson | Sweden | 1:07.41 | |