# Swimming at the 2019 World Aquatics Championships – Women's 100 metre backstroke

The Women's 100 metre backstroke competition at the 2019 World Championships was held on 22 and 23 July 2019.

## Records

Prior to the competition, the existing world and championship records were as follows.
| World record | Kathleen Baker (USA) | 58.00 | Irvine, United States | 28 July 2018 |
| Competition record | Kylie Masse (CAN) | 58.10 | Budapest, Hungary | 25 July 2017 |

## Results
### Heats

The heats were held on 22 July at 10:00.
| Rank | Heat | Lane | Name | Nationality | Time | Notes |
| 1 | 6 | 4 | Kylie Masse | Canada | 58.91 | Q |
| 2 | 6 | 3 | Minna Atherton | Australia | 59.22 | Q |
| 3 | 5 | 3 | Kaylee McKeown | Australia | 59.25 | Q |
| 4 | 7 | 4 | Kathleen Baker | United States | 59.31 | Q |
| 5 | 7 | 5 | Olivia Smoliga | United States | 59.55 | Q |
| 6 | 5 | 4 | Taylor Ruck | Canada | 59.82 | Q |
| 7 | 7 | 6 | Georgia Davies | Great Britain | 59.84 | Q |
| 8 | 6 | 2 | Simona Kubová | Czech Republic | 59.95 | Q |
| 9 | 6 | 5 | Margherita Panziera | Italy | 59.99 | Q |
| 10 | 7 | 3 | Natsumi Sakai | Japan | 1:00.05 | Q |
| 11 | 7 | 7 | Laura Riedemann | Germany | 1:00.15 | Q |
| 12 | 5 | 2 | Kira Toussaint | Netherlands | 1:00.27 | Q |
| 13 | 5 | 5 | Anastasia Fesikova | Russia | 1:00.38 | Q |
| 14 | 6 | 9 | Ingeborg Løyning | Norway | 1:00.47 | Q, NR |
| 15 | 5 | 7 | Chen Jie | China | 1:00.64 | Q |
| 16 | 6 | 6 | Daria Vaskina | Russia | 1:00.66 | Q |
| 17 | 7 | 8 | Silvia Scalia | Italy | 1:00.74 | |
| 18 | 7 | 0 | Im Da-sol | South Korea | 1:00.86 | |
| 19 | 5 | 6 | Mie Nielsen | Denmark | 1:00.99 | |
| 20 | 4 | 3 | Caroline Pilhatsch | Austria | 1:01.07 | NR |
| 21 | 4 | 4 | Alicja Tchórz | Poland | 1:01.08 | |
| 22 | 6 | 7 | Fu Yuanhui | China | 1:01.19 | |
| 23 | 7 | 1 | Katalin Burián | Hungary | 1:01.22 | |
| 24 | 5 | 8 | Stephanie Au | Hong Kong | 1:01.25 | |
| 25 | 7 | 9 | Maaike de Waard | Netherlands | 1:01.26 | |
| 26 | 5 | 1 | Mimosa Jallow | Finland | 1:01.39 | |
| 27 | 5 | 0 | Jessica Fullalove | Great Britain | 1:01.40 | |
| 28 | 6 | 1 | Béryl Gastaldello | France | 1:01.45 | |
| 29 | 4 | 1 | Kristina Steina | Latvia | 1:01.49 | |
| 30 | 4 | 0 | Ali Galyer | New Zealand | 1:01.53 | |
| 31 | 4 | 8 | África Zamorano | Spain | 1:01.66 | |
| 32 | 5 | 9 | Anastasia Gorbenko | Israel | 1:01.77 | |
| 33 | 3 | 1 | Gabriela Georgieva | Bulgaria | 1:01.81 | |
| 34 | 6 | 0 | Michelle Coleman | Sweden | 1:01.95 | |
| 35 | 4 | 2 | Ekaterina Avramova | Turkey | 1:02.24 | |
| 36 | 4 | 7 | Krystal Lara | Dominican Republic | 1:02.71 | |
| 37 | 4 | 5 | Nina Kost | Switzerland | 1:02.86 | |
| 38 | 3 | 7 | Celina Márquez | El Salvador | 1:02.94 | |
| 39 | 3 | 5 | Mariella Venter | South Africa | 1:02.95 | |
| 40 | 4 | 9 | Tatiana Salcuțan | Moldova | 1:03.08 | |
| 41 | 3 | 4 | Karolina Hájková | Slovakia | 1:03.26 | |
| 42 | 3 | 3 | Eygló Ósk Gústafsdóttir | Iceland | 1:03.46 | |
| 43 | 2 | 4 | Danielle Titus | Barbados | 1:03.66 | NR |
| 44 | 3 | 8 | Signhild Joensen | Faroe Islands | 1:04.04 | |
| 45 | 4 | 6 | Isabella Arcila | Colombia | 1:04.07 | |
| 46 | 3 | 6 | Celismar Guzman | Puerto Rico | 1:04.11 | |
| 47 | 3 | 2 | Diana Nazarova | Kazakhstan | 1:04.22 | |
| 48 | 3 | 9 | Lushavel Stickland | Samoa | 1:05.22 | |
| 49 | 2 | 6 | Mia Krstevska | North Macedonia | 1:06.00 | |
| 50 | 3 | 0 | Kimiko Raheem | Sri Lanka | 1:06.52 | |
| 51 | 1 | 2 | Robyn Lee | Zimbabwe | 1:06.96 | |
| 52 | 2 | 5 | Maria Arrua | Paraguay | 1:07.08 | |
| 53 | 1 | 4 | Catarina Sousa | Angola | 1:07.96 | NR |
| 54 | 2 | 3 | Eda Zeqiri | Kosovo | 1:08.37 | |
| 55 | 1 | 3 | Idealy Tendrinavalona | Madagascar | 1:08.41 | |
| 56 | 2 | 2 | Kimberly Ince | Grenada | 1:09.85 | NR |
| 57 | 2 | 9 | Leedia Al-Safadi | Jordan | 1:10.11 | |
| 58 | 2 | 7 | Colleen Furgeson | Marshall Islands | 1:13.64 | |
| 59 | 1 | 6 | Robyn Young | Eswatini | 1:13.97 | |
| 60 | 1 | 5 | Osisang Chilton | Palau | 1:16.55 | |
| 61 | 2 | 0 | Ammara Pinto | Malawi | 1:16.68 | |
| 62 | 2 | 1 | Aishath Sausan | Maldives | 1:19.82 | |
| 63 | 2 | 8 | Shivani Bhatt | Tanzania | 1:24.04 | |
| | 6 | 8 | Louise Hansson | Sweden | DNS | DNS |
| | 7 | 2 | Katinka Hosszú | Hungary | DNS | DNS |

### Semifinals

The semifinals were held on 22 July at 20:54.

#### Semifinal 1

| Rank | Lane | Name | Nationality | Time | Notes |
| 1 | 4 | Minna Atherton | Australia | 58.60 | Q |
| 2 | 3 | Taylor Ruck | Canada | 58.83 | Q |
| 3 | 5 | Kathleen Baker | United States | 59.03 | Q |
| 4 | 8 | Daria Vaskina | Russia | 59.46 | Q |
| 5 | 2 | Natsumi Sakai | Japan | 59.71 | Q |
| 6 | 6 | Simona Kubová | Czech Republic | 59.79 | |
| 7 | 7 | Kira Toussaint | Netherlands | 1:00.13 | |
| 8 | 1 | Ingeborg Løyning | Norway | 1:00.35 | NR |

#### Semifinal 2

| Rank | Lane | Name | Nationality | Time | Notes |
| 1 | 4 | Kylie Masse | Canada | 58.50 | Q |
| 2 | 5 | Kaylee McKeown | Australia | 59.13 | Q |
| 3 | 3 | Olivia Smoliga | United States | 59.36 | Q |
| 4 | 7 | Laura Riedemann | Germany | 59.82 | |
| 5 | 2 | Margherita Panziera | Italy | 59.83 | |
| 6 | 6 | Georgia Davies | Great Britain | 59.90 | |
| 7 | 1 | Anastasia Fesikova | Russia | 1:00.33 | |
| 8 | 8 | Chen Jie | China | 1:01.68 | |

### Final

The final was held on 23 July at 20:51.
| Rank | Lane | Name | Nationality | Time |
| | 4 | Kylie Masse | Canada | 58.60 |
| | 5 | Minna Atherton | Australia | 58.85 |
| | 7 | Olivia Smoliga | United States | 58.91 |
| 4 | 3 | Taylor Ruck | Canada | 58.96 |
| 5 | 2 | Kaylee McKeown | Australia | 59.10 |
| 6 | 6 | Kathleen Baker | United States | 59.56 |
| 6 | 8 | Natsumi Sakai | Japan | 59.56 |
| 8 | 1 | Daria Vaskina | Russia | 59.74 |