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 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 | | 50.25 | Adelaide | 26 October 2017 |
| Championship record | Femke Heemskerk | | 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 | | 52.18 | Q |
| 2 | 9 | 4 | Femke Heemskerk | | 52.27 | Q |
| 3 | 8 | 4 | Michelle Coleman | | 52.37 | Q |
| 4 | 10 | 5 | Larissa Oliveira | | 52.87 | Q |
| 5 | 10 | 4 | Ranomi Kromowidjojo | | 52.93 | Q |
| 6 | 8 | 8 | Barbora Seemanová | | 52.94 | Q |
| 7 | 9 | 5 | Lia Neal | | 52.99 | Q |
| 8 | 8 | 3 | Mariia Kameneva | | 53.00 | Q |
| 9 | 10 | 2 | Erin Gallagher | | 53.09 | Q |
| 10 | 8 | 5 | Federica Pellegrini | | 53.17 | Q |
| 11 | 10 | 3 | Zhu Menghui | | 53.20 | Q |
| 12 | 9 | 3 | Anika Apostalon | | 53.21 | Q |
| 13 | 8 | 7 | Tomomi Aoki | | 53.54 | Q |
| 14 | 10 | 7 | Annika Bruhn | | 53.61 | Q |
| 15 | 9 | 6 | Veronika Andrusenko | | 53.80 | Q |
| 16 | 9 | 2 | Carla Buchanan | | 53.82 | Q |
| 17 | 9 | 9 | Isabella Arcila | | 53.88 | R |
| 18 | 8 | 6 | Lidón Muñoz | | 53.96 | R |
| 19 | 9 | 1 | Lena Kreundl | | 54.10 | |
| 20 | 8 | 2 | Wang Jingzhuo | | 54.26 | |
| 21 | 10 | 1 | Manuella Lyrio | | 54.38 | |
| 22 | 9 | 0 | Neza Klancar | | 54.55 | |
| 23 | 10 | 8 | Susann Bjørnsen | | 54.65 | |
| 24 | 8 | 0 | Nastassia Karakouskaya | | 55.01 | |
| 25 | 9 | 7 | Mimosa Jallow | | 55.11 | |
| 26 | 8 | 1 | Sze Hang Yu | | 55.37 | |
| 27 | 7 | 5 | Jasmine Alkhaldi | | 55.38 | NR |
| 28 | 7 | 3 | Natthanan Junkrajang | | 55.44 | |
| 29 | 7 | 4 | Elisbet Gámez Matos | | 55.50 | |
| 30 | 8 | 9 | Barbora Mikuskova | | 55.52 | |
| 31 | 10 | 0 | Selen Özbilen | | 55.62 | |
| 32 | 7 | 2 | Karen Torrez | | 55.64 | |
| 33 | 10 | 9 | Gabriela Ņikitina | | 55.81 | |
| 34 | 9 | 8 | Paige Flynn | | 55.85 | |
| 35 | 7 | 6 | Ko Miso | | 55.90 | |
| 36 | 7 | 1 | Lushavel Stickland | | 56.19 | NR |
| 37 | 2 | 8 | Felicity Passon | | 56.47 | |
| 38 | 3 | 5 | Pak Mi-song | | 56.89 | |
| 39 | 7 | 7 | Jessica Cattaneo | | 56.97 | |
| 40 | 7 | 0 | Inés Remersaro | | 57.05 | NR |
| 41 | 6 | 5 | Bayan Jumah | | 57.07 | |
| 42 | 6 | 6 | Ines Marin | | 57.08 | NR |
| 43 | 6 | 4 | Matelita Buadromo | | 57.14 | |
| 44 | 6 | 2 | Tonia Papapetrou | | 57.16 | |
| 45 | 7 | 9 | Francesca Falzon Young | | 57.35 | =NR |
| 46 | 6 | 8 | Elodie Poo-cheong | | 57.66 | |
| 47 | 6 | 3 | Jeanne Boutbien | | 57.75 | NR |
| 48 | 6 | 7 | Shivani Kataria | | 57.76 | |
| 49 | 6 | 1 | Elisabeth Timmer | | 58.00 | |
| 50 | 6 | 0 | Mónica Ramírez | | 58.06 | |
| 51 | 5 | 4 | Enkhkhuslen Batbayar | | 58.10 | NR |
| 52 | 3 | 2 | Ariel Weech | | 58.13 | |
| 53 | 5 | 5 | Ani Poghosyan | | 58.14 | |
| 54 | 7 | 8 | Gabriela Santis | | 58.22 | NR |
| 55 | 5 | 6 | Nikol Merizaj | | 58.82 | NR |
| 56 | 1 | 7 | María Hernández | | 59.07 | NR |
| 57 | 5 | 7 | Kaya Forson | | 59.24 | |
| 58 | 5 | 3 | Mariam Imnadze | | 59.65 | |
| 59 | 6 | 9 | Noura Mana | | 59.73 | |
| 60 | 1 | 2 | Savindi Jayaweera | | | |
| 61 | 1 | 5 | María Castillo | | | |
| 62 | 5 | 2 | Imara-Bella Thorpe | | | |
| 63 | 3 | 9 | Bisma Khan | | | NR |
| 64 | 3 | 4 | Olivia Fuller | | | NR |
| 65 | 4 | 5 | Leedia Alsafadi | | | |
| 66 | 3 | 6 | Dirngulbai Misech | | | NR |
| 67 | 5 | 0 | Lidia Boguslawska | | | |
| 68 | 5 | 1 | Fjorda Shabani | | | NR |
| 69 | 2 | 9 | Araoluwa Oyetunji | | | |
| 70 | 4 | 2 | Georgia-Leigh Vele | | | |
| 71 | 3 | 3 | Alicia Mateus | | | |
| 72 | 4 | 4 | Selina Katumba | | | |
| 73 | 2 | 6 | Tisa Shakya | | | |
| 74 | 4 | 6 | Ammara Pinto | | | |
| 75 | 5 | 9 | Mineri Kurotori Gomez | | | |
| 76 | 3 | 1 | Danielle George | | | |
| 77 | 1 | 1 | Charissa Panuve | | | |
| 77 | 4 | 3 | Samantha Rakotovelo | | | |
| 79 | 5 | 8 | Catarina Ferreira | | | |
| 80 | 1 | 3 | Anastasiya Tyurina | | | |
| 81 | 2 | 4 | Anna-Sica Guerard | | | |
| 82 | 4 | 7 | Dania Nour | | | |
| 83 | 2 | 5 | Amantle Mogara | | | |
| 84 | 2 | 2 | Larissa Joassaint | | | |
| 85 | 2 | 3 | Alaa Binrajab | | | |
| 86 | 4 | 1 | Taeyanna Adams | | | |
| 87 | 4 | 8 | Senamile Dlamini | | | |
| 88 | 3 | 7 | Jin Ju Thompson | | | |
| 89 | 2 | 7 | Alex Maclaren | | | |
| 90 | 4 | 0 | Laraïba Seibou | | | |
| 91 | 4 | 9 | Evalyn Tome | | | |
| 92 | 3 | 0 | Haneen Ibrahim | | | |
| 93 | 1 | 6 | Odrina Kaze | | | |
| 94 | 3 | 8 | Imelda Ximenes | | | |
| 1 | 4 | Fatoumata Konate | | | |
| 2 | 1 | Lidwine Umuhoza Uwase | | | |
| 2 | 0 | Laurence Mokope | | | |
Semifinals
The semifinals were held on the 12th of December at 20:07.Semifinal 1
Semifinal 2
Final
The final took place on the 13th of December at 19:09.
| Rank | Lane | Name | Nationality | Time | Notes |
| 5 | Ranomi Kromowidjojo | | 51.14 | CR |
| 4 | Femke Heemskerk | | 51.60 | |
| 2 | Mallory Comerford | | 51.63 | AM |
| 4 | 6 | Michelle Coleman | | 52.24 | |
| 5 | 3 | Zhu Menghui | | 52.40 | |
| 6 | 8 | Barbora Seemanová | | 52.46 | NR |
| 7 | 7 | Lia Neal | | 52.50 | |
| 8 | 1 | Erin Gallagher | | 53.14 | |
