# 2024 World Aquatics Swimming Championships (25 m) – Women's 100 metre freestyle

The Women's 100 metre freestyle competition of the 2024 World Aquatics Swimming Championships (25 m) was held on 11 and 12 December 2024.

## Records

Prior to the competition, the existing world and championship records were as follows.
| World record | Cate Campbell (AUS) | 50.25 | Adelaide, Australia | 26 October 2017 |
| Competition record | Emma McKeon (AUS) | 50.77 | Melbourne, Australia | 15 December 2022 |
The following record was established during the competition:
| Date | Event | Name | Nationality | Time | Record |
| 11 December | Semifinal 2 | Gretchen Walsh | United States | 50.49 | CR |
| 12 December | Final | Gretchen Walsh | United States | 50.31 | CR |

## Results
### Heats

The heats were started on 11 December at 09:02.
| Rank | Heat | Lane | Name | Nationality | Time | Notes |
| 1 | 7 | 7 | Gretchen Walsh | United States | 51.64 | Q |
| 2 | 6 | 4 | Siobhán Haughey | Hong Kong | 52.12 | Q |
| 3 | 6 | 5 | Freya Anderson | Great Britain | 52.27 | Q |
| 3 | 8 | 4 | Kate Douglass | United States | 52.27 | Q |
| 5 | 8 | 3 | Daria Trofimova | Neutral Athletes B | 52.30 | Q |
| 6 | 7 | 4 | Béryl Gastaldello | France | 52.47 | Q |
| 7 | 6 | 3 | Sara Curtis | Italy | 52.51 | Q |
| 7 | 7 | 3 | Milla Jansen | Australia | 52.51 | Q |
| 9 | 5 | 5 | Nina Holt | Germany | 52.73 | Q |
| 10 | 7 | 6 | Milou van Wijk | Netherlands | 52.76 | Q |
| 11 | 6 | 7 | Snæfríður Jórunnardóttir | Iceland | 52.77 | Q, NR |
| 12 | 7 | 5 | Katarzyna Wasick | Poland | 52.80 | Q |
| 13 | 8 | 2 | Sara Junevik | Sweden | 52.84 | Q |
| 14 | 8 | 5 | Daria Klepikova | Neutral Athletes B | 52.97 | Q |
| 15 | 7 | 2 | Barbora Janíčková | Czech Republic | 52.99 | Q |
| 16 | 6 | 6 | Sofia Morini | Italy | 53.02 | Q |
| 17 | 6 | 0 | Sofia Åstedt | Sweden | 53.12 | R |
| 18 | 8 | 1 | Analia Pigrée | France | 53.25 | R |
| 19 | 8 | 6 | Liu Shuhan | China | 53.33 | |
| 20 | 8 | 9 | Iris Julia Berger | Austria | 53.35 | NR |
| 21 | 6 | 8 | María Daza | Spain | 53.38 | |
| 22 | 6 | 1 | Li Sum Yiu | Hong Kong | 53.41 | |
| 23 | 5 | 3 | Kalia Antoniou | Cyprus | 53.45 | NR |
| 24 | 7 | 1 | Luo Mingyu | China | 53.50 | |
| 24 | 7 | 9 | Penny Oleksiak | Canada | 53.50 | |
| 26 | 8 | 7 | Danielle Hill | Ireland | 53.66 | |
| 27 | 7 | 0 | Nikolett Pádár | Hungary | 53.69 | |
| 28 | 5 | 1 | Hedda Øritsland | Norway | 53.79 | |
| 28 | 7 | 8 | Nicole Maier | Germany | 53.79 | |
| 30 | 8 | 8 | Panna Ugrai | Hungary | 53.82 | |
| 31 | 4 | 3 | Zoe Pedersen | New Zealand | 53.86 | |
| 32 | 5 | 4 | Caitlin de Lange | South Africa | 53.91 | |
| 33 | 4 | 4 | Jillian Crooks | Cayman Islands | 54.13 | NR |
| 34 | 6 | 9 | Kornelia Fiedkiewicz | Poland | 54.17 | |
| 35 | 8 | 0 | Yume Jinno | Japan | 54.24 | |
| 36 | 4 | 6 | Gloria Muzito | Uganda | 54.45 | NR |
| 37 | 5 | 2 | Lillian Slušná | Slovakia | 54.52 | |
| 38 | 5 | 8 | Smiltė Plytnykaitė | Lithuania | 54.64 | |
| 39 | 5 | 6 | Hur Yeon-kyung | South Korea | 54.66 | |
| 40 | 5 | 7 | Fernanda Celidonio | Brazil | 54.69 | |
| 41 | 5 | 9 | Liu Pei-yin | Chinese Taipei | 55.02 | |
| 42 | 4 | 1 | Maria Drasidou | Greece | 55.29 | |
| 43 | 4 | 5 | Rafaela Fernandini | Peru | 55.47 | |
| 44 | 5 | 0 | Nicholle Toh | Singapore | 55.67 | |
| 45 | 4 | 8 | Marina Spadoni | El Salvador | 55.70 | NR |
| 46 | 4 | 9 | Elisabeth Timmer | Aruba | 55.77 | NR |
| 47 | 4 | 7 | Andrea Becali | Cuba | 55.83 | |
| 48 | 4 | 2 | Carla González | Venezuela | 55.96 | |
| 49 | 4 | 0 | Paige van der Westhuizen | Zimbabwe | 56.93 | |
| 50 | 3 | 3 | Sara Mose | Kenya | 57.12 | |
| 50 | 3 | 4 | Pak Mi-song | North Korea | 57.12 | |
| 52 | 3 | 5 | Hana Beiqi | Kosovo | 57.79 | |
| 53 | 3 | 7 | Aunjelique Liddie | Netherlands Antilles | 58.02 | |
| 54 | 3 | 1 | Adaku Nkem Nwandu | Nigeria | 58.21 | |
| 55 | 3 | 6 | Darielys Ortiz | Dominican Republic | 58.52 | |
| 56 | 2 | 4 | Christina Rach | Eritrea | 58.74 | |
| 57 | 3 | 0 | Riley Miller | United States Virgin Islands | 58.87 | NR |
| 58 | 3 | 2 | Mia Laban | Cook Islands | 59.01 | |
| 59 | 3 | 8 | Aiymkyz Aidaralieva | Kyrgyzstan | 59.56 | |
| 60 | 3 | 9 | Antsa Rabejaona | Madagascar | 59.66 | NR |
| 61 | 1 | 6 | Maral Batsanal | Mongolia | 1:00.08 | |
| 62 | 2 | 0 | Naekeisha Louis | Saint Lucia | 1:00.33 | |
| 63 | 2 | 7 | Marseleima Moss | Fiji | 1:00.48 | |
| 64 | 2 | 6 | Kaltra Meca | Albania | 1:00.51 | |
| 65 | 2 | 5 | Anastasiya Morginshtern | Turkmenistan | 1:00.98 | NR |
| 66 | 2 | 3 | Valentina Howell | Panama | 1:01.15 | |
| 67 | 2 | 2 | Kaiya Brown | Samoa | 1:01.22 | |
| 68 | 1 | 0 | Sharmeen Mohd Mharvin | Brunei | 1:01.34 | |
| 69 | 1 | 3 | Jasmine Schofield | Dominica | 1:03.43 | |
| 70 | 2 | 9 | Rana Saadeldin | Sudan | 1:03.64 | NR |
| 71 | 1 | 4 | Siwakhile Dlamini | Eswatini | 1:04.39 | |
| 72 | 1 | 2 | Southada Daviau | Laos | 1:04.97 | |
| 73 | 1 | 5 | Lina Goyayi | Tanzania | 1:05.22 | |
| 74 | 1 | 7 | Amazya Eliya Ann Macrooy | Suriname | 1:05.64 | |
| 75 | 1 | 1 | Meher Maqbool | Pakistan | 1:08.38 | |
| 76 | 1 | 8 | Emiliya Khalikova | Tajikistan | 1:12.91 | |
| | 2 | 1 | Anushiya Tandukar | Nepal | Did not start | Did not start |
| | 2 | 8 | Angelina Smythe | Seychelles | Did not start | Did not start |
| | 6 | 2 | Lani Pallister | Australia | Did not start | Did not start |

### Semifinals

The semifinals were started on 11 December at 17:48.
| Rank | Heat | Lane | Name | Nationality | Time | Notes |
| 1 | 2 | 4 | Gretchen Walsh | United States | 50.49 | Q, CR, AM |
| 2 | 1 | 3 | Béryl Gastaldello | France | 51.56 | Q |
| 3 | 1 | 5 | Kate Douglass | United States | 51.67 | Q |
| 4 | 1 | 1 | Daria Klepikova | Neutral Athletes B | 51.68 | Q, NR |
| 5 | 1 | 4 | Siobhán Haughey | Hong Kong | 51.83 | Q |
| 6 | 2 | 5 | Freya Anderson | Great Britain | 52.07 | Q |
| 7 | 1 | 7 | Katarzyna Wasick | Poland | 52.28 | Q |
| 8 | 1 | 6 | Milla Jansen | Australia | 52.31 | Q |
| 9 | 1 | 2 | Milou van Wijk | Netherlands | 52.34 | R |
| 9 | 2 | 3 | Daria Trofimova | Neutral Athletes B | 52.34 | R |
| 11 | 2 | 1 | Sara Junevik | Sweden | 52.54 | |
| 12 | 2 | 2 | Nina Holt | Germany | 52.56 | |
| 13 | 2 | 7 | Snæfríður Jórunnardóttir | Iceland | 52.68 | NR |
| 14 | 1 | 8 | Sofia Morini | Italy | 52.79 | |
| 15 | 2 | 6 | Sara Curtis | Italy | 52.80 | |
| 16 | 2 | 8 | Barbora Janíčková | Czech Republic | 52.81 | |

### Final

The final was held on 12 December at 17:32.
| Rank | Lane | Name | Nationality | Time | Notes |
| | 4 | Gretchen Walsh | United States | 50.31 | CR, AM |
| | 5 | Béryl Gastaldello | France | 50.63 | NR |
| | 3 | Kate Douglass | United States | 50.73 | |
| 4 | 2 | Siobhán Haughey | Hong Kong | 51.41 | |
| 5 | 6 | Daria Klepikova | Neutral Athletes B | 51.62 | NR |
| 6 | 1 | Katarzyna Wasick | Poland | 51.99 | |
| 7 | 7 | Freya Anderson | Great Britain | 52.22 | |
| 8 | 8 | Milla Jansen | Australia | 52.36 | |