# 2018 FINA World Swimming Championships (25 m) – Women's 100 metre freestyle

The women's 100 metre freestyle competition of the 2018 FINA World Swimming Championships (25 m) was held on 12 and 13 December 2018.

## Records

Prior to the competition, the existing world and championship records were as follows.
| | Name | Nation | Time | Location | Date |
| World record | Cate Campbell | Australia | 50.25 | Adelaide | 26 October 2017 |
| Championship record | Femke Heemskerk | Netherlands | 51.37 | Doha | 5 December 2014 |

## Results
### Heats

The heats were started on 12 December at 10:03.
| Rank | Heat | Lane | Name | Nationality | Time | Notes |
| 1 | 10 | 6 | Mallory Comerford | United States | 52.18 | Q |
| 2 | 9 | 4 | Femke Heemskerk | Netherlands | 52.27 | Q |
| 3 | 8 | 4 | Michelle Coleman | Sweden | 52.37 | Q |
| 4 | 10 | 5 | Larissa Oliveira | Brazil | 52.87 | Q |
| 5 | 10 | 4 | Ranomi Kromowidjojo | Netherlands | 52.93 | Q |
| 6 | 8 | 8 | Barbora Seemanová | Czech Republic | 52.94 | Q |
| 7 | 9 | 5 | Lia Neal | United States | 52.99 | Q |
| 8 | 8 | 3 | Mariia Kameneva | Russia | 53.00 | Q |
| 9 | 10 | 2 | Erin Gallagher | South Africa | 53.09 | Q |
| 10 | 8 | 5 | Federica Pellegrini | Italy | 53.17 | Q |
| 11 | 10 | 3 | Zhu Menghui | China | 53.20 | Q |
| 12 | 9 | 3 | Anika Apostalon | Czech Republic | 53.21 | Q |
| 13 | 8 | 7 | Tomomi Aoki | Japan | 53.54 | Q |
| 14 | 10 | 7 | Annika Bruhn | Germany | 53.61 | Q |
| 15 | 9 | 6 | Veronika Andrusenko | Russia | 53.80 | Q |
| 16 | 9 | 2 | Carla Buchanan | Australia | 53.82 | Q |
| 17 | 9 | 9 | Isabella Arcila | Colombia | 53.88 | R |
| 18 | 8 | 6 | Lidón Muñoz | Spain | 53.96 | R |
| 19 | 9 | 1 | Lena Kreundl | Austria | 54.10 | |
| 20 | 8 | 2 | Wang Jingzhuo | China | 54.26 | |
| 21 | 10 | 1 | Manuella Lyrio | Brazil | 54.38 | |
| 22 | 9 | 0 | Neža Klančar | Slovenia | 54.55 | |
| 23 | 10 | 8 | Susann Bjørnsen | Norway | 54.65 | |
| 24 | 8 | 0 | Nastassia Karakouskaya | Belarus | 55.01 | |
| 25 | 9 | 7 | Mimosa Jallow | Finland | 55.11 | |
| 26 | 8 | 1 | Sze Hang Yu | Hong Kong | 55.37 | |
| 27 | 7 | 5 | Jasmine Alkhaldi | Philippines | 55.38 | NR |
| 28 | 7 | 3 | Natthanan Junkrajang | Thailand | 55.44 | |
| 29 | 7 | 4 | Elisbet Gámez Matos | Cuba | 55.50 | |
| 30 | 8 | 9 | Barbora Mikuskova | Slovakia | 55.52 | |
| 31 | 10 | 0 | Selen Özbilen | Turkey | 55.62 | |
| 32 | 7 | 2 | Karen Torrez | Bolivia | 55.64 | |
| 33 | 10 | 9 | Gabriela Ņikitina | Latvia | 55.81 | |
| 34 | 9 | 8 | Paige Flynn | New Zealand | 55.85 | |
| 35 | 7 | 6 | Ko Miso | South Korea | 55.90 | |
| 36 | 7 | 1 | Lushavel Stickland | Samoa | 56.19 | NR |
| 37 | 2 | 8 | Felicity Passon | Seychelles | 56.47 | |
| 38 | 3 | 5 | Pak Mi-song | North Korea | 56.89 | |
| 39 | 7 | 7 | Jessica Cattaneo | Peru | 56.97 | |
| 40 | 7 | 0 | Inés Remersaro | Uruguay | 57.05 | NR |
| 41 | 6 | 5 | Bayan Jumah | Syria | 57.07 | |
| 42 | 6 | 6 | Ines Marin | Chile | 57.08 | NR |
| 43 | 6 | 4 | Matelita Buadromo | Fiji | 57.14 | |
| 44 | 6 | 2 | Tonia Papapetrou | Cyprus | 57.16 | |
| 45 | 7 | 9 | Francesca Falzon Young | Malta | 57.35 | =NR |
| 46 | 6 | 8 | Elodie Poo-cheong | Mauritius | 57.66 | |
| 47 | 6 | 3 | Jeanne Boutbien | Senegal | 57.75 | NR |
| 48 | 6 | 7 | Shivani Kataria | India | 57.76 | |
| 49 | 6 | 1 | Elisabeth Timmer | Aruba | 58.00 | |
| 50 | 6 | 0 | Mónica Ramírez | Andorra | 58.06 | |
| 51 | 5 | 4 | Enkhkhuslen Batbayar | Mongolia | 58.10 | NR |
| 52 | 3 | 2 | Ariel Weech | Bahamas | 58.13 | |
| 53 | 5 | 5 | Ani Poghosyan | Armenia | 58.14 | |
| 54 | 7 | 8 | Gabriela Santis | Guatemala | 58.22 | NR |
| 55 | 5 | 6 | Nikol Merizaj | Albania | 58.82 | |
| 56 | 1 | 7 | María Hernández | Nicaragua | 59.07 | |
| 57 | 5 | 7 | Kaya Forson | Ghana | 59.24 | |
| 58 | 5 | 3 | Mariam Imnadze | Georgia | 59.65 | |
| 59 | 6 | 9 | Noura Mana | Morocco | 59.73 | |
| 60 | 1 | 2 | Savindi Jayaweera | Sri Lanka | 1:00.07 | |
| 61 | 1 | 5 | María Castillo | Panama | 1:00.15 | |
| 62 | 5 | 2 | Imara-Bella Thorpe | Kenya | 1:00.21 | |
| 63 | 3 | 9 | Bisma Khan | Pakistan | 1:00.32 | NR |
| 64 | 3 | 4 | Olivia Fuller | Antigua and Barbuda | 1:00.86 | NR |
| 65 | 4 | 5 | Leedia Alsafadi | Jordan | 1:01.00 | |
| 66 | 3 | 6 | Dirngulbai Misech | Palau | 1:01.50 | NR |
| 67 | 5 | 0 | Lidia Boguslawska | United States Virgin Islands | 1:01.79 | |
| 68 | 5 | 1 | Fjorda Shabani | Kosovo | 1:02.09 | NR |
| 69 | 2 | 9 | Araoluwa Oyetunji | Nigeria | 1:02.34 | |
| 70 | 4 | 2 | Georgia-Leigh Vele | Papua New Guinea | 1:02.59 | |
| 71 | 3 | 3 | Alicia Mateus | Mozambique | 1:02.80 | |
| 72 | 4 | 4 | Selina Katumba | Uganda | 1:03.36 | |
| 73 | 2 | 6 | Tisa Shakya | Nepal | 1:03.81 | |
| 74 | 4 | 6 | Ammara Pinto | Malawi | 1:03.96 | |
| 75 | 5 | 9 | Mineri Kurotori Gomez | Guam | 1:04.06 | |
| 76 | 3 | 1 | Danielle George | Guyana | 1:04.20 | |
| 77 | 1 | 1 | Charissa Panuve | Tonga | 1:04.80 | |
| 77 | 4 | 3 | Samantha Rakotovelo | Madagascar | 1:04.80 | |
| 79 | 5 | 8 | Catarina Ferreira | Cape Verde | 1:05.25 | |
| 80 | 1 | 3 | Anastasiya Tyurina | Tajikistan | 1:05.27 | |
| 81 | 2 | 4 | Anna-Sica Guerard | Togo | 1:05.51 | |
| 82 | 4 | 7 | Dania Nour | Palestine | 1:05.72 | |
| 83 | 2 | 5 | Amantle Mogara | Botswana | 1:06.48 | |
| 84 | 2 | 2 | Larissa Joassaint | Haiti | 1:07.23 | |
| 85 | 2 | 3 | Alaa Binrajab | Bahrain | 1:07.85 | |
| 86 | 4 | 1 | Taeyanna Adams | Federated States of Micronesia | 1:08.41 | |
| 87 | 4 | 8 | Senamile Dlamini | Eswatini | 1:08.54 | |
| 88 | 3 | 7 | Jin Ju Thompson | Northern Mariana Islands | 1:09.05 | |
| 89 | 2 | 7 | Alex Maclaren | Turks and Caicos Islands | 1:10.46 | |
| 90 | 4 | 0 | Laraïba Seibou | Benin | 1:10.94 | |
| 91 | 4 | 9 | Evalyn Tome | Solomon Islands | 1:19.98 | |
| 92 | 3 | 0 | Haneen Ibrahim | Sudan | 1:20.27 | |
| 93 | 1 | 6 | Odrina Kaze | Burundi | 1:22.10 | |
| 94 | 3 | 8 | Imelda Ximenes | Timor-Leste | 1:23.07 | |
| | 1 | 4 | Fatoumata Konate | Mali | DNS | |
| | 2 | 1 | Lidwine Umuhoza Uwase | Rwanda | DNS | |
| | 2 | 0 | Laurence Mokope | Central African Republic | DSQ | |

### Semifinals

The semifinals were held on 12 December at 20:07.

#### Semifinal 1

| Rank | Lane | Name | Nationality | Time | Notes |
| 1 | 4 | Femke Heemskerk | Netherlands | 51.84 | Q |
| 2 | 3 | Barbora Seemanová | Czech Republic | 52.71 | Q |
| 3 | 6 | Maria Kameneva | Russia | 52.85 | R |
| 4 | 2 | Federica Pellegrini | Italy | 52.86 | R |
| 5 | 5 | Larissa Oliveira | Brazil | 52.98 | |
| 6 | 7 | Anika Apostalon | Czech Republic | 53.14 | |
| 7 | 8 | Carla Buchanan | Australia | 53.68 | |
| 8 | 1 | Annika Bruhn | Germany | 53.75 | |

#### Semifinal 2

| Rank | Lane | Name | Nationality | Time | Notes |
| 1 | 3 | Ranomi Kromowidjojo | Netherlands | 51.95 | Q |
| 2 | 7 | Zhu Menghui | China | 52.04 | Q |
| 3 | 5 | Michelle Coleman | Sweden | 52.18 | Q |
| 4 | 4 | Mallory Comerford | United States | 52.36 | Q |
| 5 | 6 | Lia Neal | United States | 52.69 | Q |
| 6 | 2 | Erin Gallagher | South Africa | 52.70 | Q, AF |
| 7 | 1 | Tomomi Aoki | Japan | 53.27 | |
| 8 | 8 | Veronika Andrusenko | Russia | 53.35 | |

### Final

The final took place on 13 December at 19:09.
| Rank | Lane | Name | Nationality | Time | Notes |
| | 5 | Ranomi Kromowidjojo | Netherlands | 51.14 | CR |
| | 4 | Femke Heemskerk | Netherlands | 51.60 | |
| | 2 | Mallory Comerford | United States | 51.63 | AM |
| 4 | 6 | Michelle Coleman | Sweden | 52.24 | |
| 5 | 3 | Zhu Menghui | China | 52.40 | |
| 6 | 8 | Barbora Seemanová | Czech Republic | 52.46 | NR |
| 7 | 7 | Lia Neal | United States | 52.50 | |
| 8 | 1 | Erin Gallagher | South Africa | 53.14 | |