2018 FINA World Swimming Championships (25 m) – Women's 50 metre freestyle
The Women's 50 metre freestyle competition of the 2018 FINA World Swimming Championships was held on 15 and 16 December 2018 at the Hangzhou Olympic Sports Center.Records
Prior to the competition, the existing world and championship records were as follows.
| Name | Nation | Time | Location | Date |
| World record | Ranomi Kromowidjojo | | 22.93 | Berlin | 7 August 2017 |
| Championship record | Marleen Veldhuis | | 23.25 | Manchester | 13 April 2008 |
Results
Heats
The heats were started on 15 December at 11:09.
| Rank | Heat | Lane | Name | Nationality | Time | Notes |
| 1 | 8 | 4 | Femke Heemskerk | | 23.90 | Q |
| 2 | 9 | 5 | Mariia Kameneva | | 23.93 | Q |
| 3 | 10 | 6 | Holly Barratt | | 23.94 | Q |
| 4 | 9 | 3 | Etiene Medeiros | | 24.00 | Q |
| 5 | 10 | 4 | Ranomi Kromowidjojo | | 24.07 | Q |
| 6 | 9 | 1 | Mallory Comerford | | 24.18 | Q |
| 6 | 10 | 3 | Anika Apostalon | | 24.18 | Q |
| 8 | 10 | 5 | Zhu Menghui | | 24.20 | Q |
| 9 | 10 | 7 | Aya Sato | | 24.23 | Q |
| 10 | 8 | 1 | Madison Kennedy | | 24.24 | Q |
| 11 | 8 | 6 | Wu Yue | | 24.25 | Q |
| 12 | 10 | 1 | Melanie Henique | | 24.31 | Q |
| 13 | 8 | 3 | Michelle Coleman | | 24.39 | Q |
| 14 | 8 | 2 | Erin Gallagher | | 24.41 | Q, AF |
| 15 | 10 | 2 | Lidón Muñoz | | 24.60 | Q |
| 16 | 9 | 4 | Rozaliya Nasretdinova | | 24.62 | Q |
| 17 | 9 | 6 | Mimosa Jallow | | 24.65 | R |
| 18 | 9 | 7 | Barbora Seemanová | | 24.76 | R |
| 19 | 8 | 7 | Nastassia Karakouskaya | | 24.80 | |
| 20 | 10 | 0 | Isabella Arcila | | 24.83 | |
| 21 | 9 | 2 | Susann Bjørnsen | | 24.87 | |
| 22 | 7 | 3 | Ko Miso | | 25.16 | NR |
| 22 | 8 | 9 | Diana Petkova | | 25.16 | |
| 24 | 9 | 9 | Jeserik Pinto | | 25.17 | |
| 25 | 10 | 9 | Neza Klancar | | 25.19 | |
| 26 | 9 | 0 | Sze Hang Yu | | 25.44 | |
| 27 | 8 | 8 | Selen Özbilen | | 25.46 | |
| 28 | 8 | 0 | Rebecca Moynihan | | 25.51 | |
| 29 | 7 | 5 | Karen Torrez | | 25.53 | |
| 30 | 10 | 8 | Gabriela Ņikitina | | 25.63 | |
| 31 | 7 | 4 | I.K.Jónsdóttir | | 25.67 | |
| 32 | 7 | 6 | Barbora Mikuskova | | 25.78 | |
| 32 | 9 | 8 | Rūta Meilutytė | | 25.78 | |
| 34 | 7 | 8 | Lamija Medošević | | 25.80 | NR |
| 35 | 4 | 8 | Pak Mi-song | | 25.91 | |
| 36 | 7 | 2 | Francesca Falzon Young | | 26.03 | NR |
| 37 | 7 | 0 | Bayan Jumah | | 26.24 | NR |
| 38 | 6 | 3 | Ariel Weech | | 26.28 | |
| 39 | 7 | 9 | Mariel Mencia | | 26.40 | NR |
| 40 | 7 | 1 | Inés Remersaro | | 26.41 | NR |
| 41 | 6 | 2 | Elisabeth Timmer | | 26.51 | |
| 42 | 7 | 7 | Yolani Julia Blake | | 26.54 | |
| 43 | 6 | 1 | Tonia Papapetrou | | 26.57 | |
| 44 | 6 | 7 | Nikol Merizaj | | 26.68 | NR |
| 45 | 6 | 8 | Varsenik Manucharyan | | 26.80 | |
| 46 | 6 | 4 | Jeanne Boutbien | | 26.81 | NR |
| 47 | 6 | 5 | Noura Mana | | 27.07 | |
| 48 | 1 | 7 | Savindi Jayaweera | | 27.15 | |
| 49 | 4 | 0 | Arleigha Hall | | 27.31 | |
| 50 | 6 | 0 | Mariam Imnadze | | 27.37 | |
| 51 | 2 | 3 | Enkhzul Khuyagbaatar | | 27.44 | |
| 52 | 6 | 9 | Fjorda Shabani | | 27.45 | |
| 53 | 3 | 5 | Olivia Fuller | | 27.58 | |
| 54 | 3 | 4 | Maayaa Ayawere | | 27.60 | |
| 55 | 4 | 1 | María Castillo | | 27.73 | |
| 56 | 2 | 4 | Abiola Ogunbanwo | | 27.83 | |
| 57 | 6 | 6 | Tan Chi Yan | | 27.88 | |
| 58 | 5 | 8 | Daila Ismatul | | 28.00 | |
| 59 | 5 | 3 | Colleen Furgeson | | 28.32 | |
| 60 | 5 | 4 | Jamila Sanmoogan | | 28.33 | |
| 61 | 5 | 5 | Selina Katumba | | 28.42 | |
| 62 | 3 | 8 | Jannat Bique | | 28.68 | |
| 63 | 2 | 0 | Andrea Schuster | | 28.81 | |
| 64 | 5 | 1 | Margie Winter | | 28.86 | |
| 65 | 5 | 9 | Georgia-Leigh Vele | | 28.89 | |
| 66 | 2 | 1 | Larissa Joassaint | | 28.91 | |
| 67 | 3 | 7 | Mary Al-Atrash | | 28.95 | |
| 68 | 1 | 4 | Noelani Day | | 29.04 | |
| 69 | 5 | 2 | Ammara Pinto | | 29.07 | |
| 70 | 2 | 8 | Anastasiya Tyurina | | 29.24 | |
| 71 | 5 | 6 | Samantha Rakotovelo | | 29.39 | |
| 72 | 4 | 9 | Tisa Shakya | | 29.46 | |
| 73 | 1 | 5 | Anna-Sica Guerard | | 29.55 | |
| 74 | 3 | 0 | Alaa Binrajab | | 29.81 | |
| 75 | 3 | 9 | Daniela Costa | | 29.90 | |
| 76 | 5 | 7 | Catarina Ferreira | | 29.97 | |
| 77 | 1 | 1 | Sonia Aktar | | 30.21 | |
| 78 | 4 | 5 | Nafissath Radji | | 30.40 | |
| 79 | 4 | 3 | Senamile Dlamini | | 30.88 | |
| 80 | 4 | 4 | Siri Arun Budcharern | | 31.19 | |
| 81 | 5 | 0 | Kayla Temba | | 31.37 | |
| 82 | 2 | 6 | San Bopha | | 32.87 | |
| 83 | 4 | 2 | Wendy Charles | | 34.16 | |
| 84 | 3 | 3 | Odrina Kaze | | 34.72 | |
| 85 | 2 | 5 | Haneen Ibrahim | | 34.86 | |
| 86 | 3 | 1 | Roukaya Mahamane | | 34.91 | |
| 87 | 2 | 9 | Lina Selo | | 35.42 | |
| 88 | 4 | 7 | Safia Houssein Barkat | | 35.77 | |
| 89 | 3 | 6 | Raaidah Aqeel | | 36.15 | |
| 90 | 3 | 2 | Tity Dumbuya | | 36.71 | |
| 91 | 1 | 2 | Gniene Faouzia Sessouma | | 38.94 | |
| 92 | 1 | 3 | Ana Oafini | | 41.11 | |
| 93 | 2 | 7 | Sainabou Sam | | 46.14 | |
| 1 | 6 | Lucie Kouadio-Patinier | | | |
| 2 | 2 | Fatoumata Samassékou | | | |
| 4 | 6 | Chloe Sauvourel | | | |
| 8 | 5 | Larissa Oliveira | | | |
Semifinals
The semifinals were held on 15 December at 19:47.Semifinal 1
Semifinal 2
Final
The Final was held on 16 December at 19:33.
| Rank | Lane | Name | Nationality | Time | Notes |
| 4 | Ranomi Kromowidjojo | | 23.19 | CR |
| 5 | Femke Heemskerk | | 23.67 | |
| 3 | Etiene Medeiros | | 23.76 | AM |
| 4 | 6 | Mallory Comerford | | 23.86 | |
| 5 | 7 | Holly Barratt | | 23.92 | |
| 5 | 8 | Melanie Henique | | 24.01 | |
| 7 | 2 | Maria Kameneva | | 24.06 | |
| 8 | 1 | Madison Kennedy | | 24.11 | |
