2018 FINA World Swimming Championships (25 m) – Mixed 4 × 50 metre freestyle relay
The men's 4 × 50 metre freestyle relay competition of the 2018 FINA World Swimming Championships was held on 12 December 2018.
Records
Prior to the competition, the existing world and championship records were as follows.| Name | Nation | Time | Location | Date | |
| World record | Nyls Korstanje Kyle Stolk Ranomi Kromowidjojo Femke Heemskerk | 1:28.39 | Copenhagen | 16 December 2017 | |
| Championship record | Josh Schneider Matt Grevers Madison Kennedy Abbey Weitzeil | 1:28.57 | Doha, Qatar | 6 December 2014 |
The following records were established during the competition:
| Date | Event | Name | Nation | Time | Record |
| 14 December | Final | Caeleb Dressel Ryan Held Mallory Comerford Kelsi Dahlia | 1:27.89 | , CR |
Results
Heats
The heats were started at 11:07.| Rank | Heat | Lane | Nation | Swimmers | Time | Notes |
| 1 | 5 | 5 | Michael Andrew Michael Chadwick Olivia Smoliga Madison Kennedy | 1:29.80 | Q | |
| 2 | 4 | 4 | Evgeny Rylov Ivan Kuzmenko Arina Surkova Rozaliya Nasretdinova | 1:29.96 | Q | |
| 3 | 5 | 3 | Cameron McEvoy Cameron Jones Holly Barratt Emily Seebohm | 1:30.12 | Q | |
| 4 | 3 | 5 | Kosuke Matsui Katsumi Nakamura Aya Sato Runa Imai | 1:30.32 | Q | |
| 5 | 5 | 4 | Jesse Puts Stan Pijnenburg Kim Busch Valerie van Roon | 1:30.56 | Q | |
| 6 | 5 | 0 | Marcelo Chierighini Matheus Santana Larissa Oliveira Etiene Medeiros | 1:30.78 | Q | |
| 7 | 4 | 9 | Andrei Tuomola Ari-Pekka Liukkonen Jenna Laukkanen Mimosa Jallow | 1:31.51 | Q | |
| 8 | 3 | 4 | Santo Condorelli Andrea Vergani Elena Di Liddo Federica Pellegrini | 1:31.88 | Q | |
| 9 | 4 | 3 | Artsiom Machekin Viktar Staselovich Anastasiya Shkurdai Nastassia Karakouskaya | 1:31.92 | R | |
| 10 | 2 | 6 | Damian Wierling Marius Kusch Jessica Steiger Annika Bruhn | 1:32.34 | R | |
| 11 | 4 | 5 | Hou Yujie Cao Jiwen Wu Yue Yang Junxuan | 1:32.81 | ||
| 12 | 5 | 6 | Hüseyin Emre Sakçı Kemal Arda Gürdal Selen Özbilen Ekaterina Avramova | 1:32.92 | ||
| 13 | 4 | 6 | Douglas Erasmus Brad Tandy Erin Gallagher Rebecca Meder | 1:33.21 | ||
| 14 | 2 | 5 | Daniel Hunter Wilrich Coetzee Rebecca Moynihan Paige Flynn | 1:34.14 | ||
| 15 | 3 | 3 | Kenneth To Stephanie Au Sze Hang Yu Cheuk Ming Ho | 1:34.67 | ||
| 16 | 3 | 6 | Wu Chun-feng Lin Chien-liang Huang Mei-chien Lin Pei-wun | 1:34.86 | ||
| 17 | 3 | 9 | Nikola Bjelajac Adi Mešetović Amina Kajtaz Lamija Medošević | 1:36.16 | ||
| 18 | 1 | 2 | Ádám Halás Marek Botík Barbora Mikuskova Karolina Hájková | 1:36.22 | ||
| 19 | 1 | 5 | Ģirts Feldbergs Daniils Bobrovs Ieva Maļuka Gabriela Ņikitina | 1:36.71 | ||
| 20 | 2 | 1 | Kang Ji-seok Lee Ju-ho Ko Miso Park Ye-rin | 1:38.41 | ||
| 21 | 2 | 0 | Bradley Vincent Mathieu Marquet Elodie Poo-cheong Camille Koenig | 1:39.78 | ||
| 22 | 4 | 2 | Vladimir Mamikonyan Ani Poghosyan Artur Barseghyan Varsenik Manucharyan | 1:40.73 | ||
| 23 | 3 | 2 | Dean Hoffman Felicity Passon Therese Soukup Samuele Rossi | 1:41.04 | ||
| 24 | 3 | 1 | Bernat Lomero Patrick Pelegrina Cuén Mónica Ramírez Nàdia Tudó Cubells | 1:41.81 | ||
| 25 | 5 | 8 | Dan Siminel Nichita Bortnicov Tatiana Chișca Tatiana Salcuțan | 1:41.87 | ||
| 26 | 5 | 9 | Chao Man Hou Lin Sizhuang Tan Chi Yan Cheang Weng Lam | 1:42.16 | ||
| 27 | 5 | 2 | Malcolm Low Ardi Zulhilmi Mohamed Azman Rachel Tseng Nicholle Toh | 1:42.50 | ||
| 28 | 1 | 1 | Isaac Beitia Nimia Murua María Castillo Édgar Crespo | 1:42.90 | ||
| 28 | 3 | 8 | Delgerkhuu Myagmar Enkhkhuslen Batbayar Enkhzul Khuyagbaatar Zandanbal Gunsennorov | 1:42.90 | ||
| 30 | 2 | 9 | María Hernández Eisner Barberena Karla Abarca Kener Torrez | 1:43.15 | ||
| 31 | 5 | 1 | Beatriz Padrón Daniela Alfaro Arnoldo Herrera Bryan Alvaréz | 1:43.45 | ||
| 32 | 1 | 7 | Stefano Mitchell Olivia Fuller Bianca Mitchell Noah Mascoll-Gomes | 1:43.53 | ||
| 33 | 3 | 7 | Mohammed Bedour Amro Al-Wir Lara Aklouk Leedia Alsafadi | 1:45.17 | ||
| 34 | 5 | 7 | Ludovico Corsini Jannat Bique Alicia Mateus Igor Mogne | 1:47.12 | ||
| 35 | 2 | 2 | Heriniavo Rasolonjatovo Lalanomena Andrianirina Tiana Rabarijaona Samantha Rakotovelo | 1:48.28 | ||
| 36 | 4 | 8 | Leonard Kalate Josh Tarere Georgia-Leigh Vele Rehema Kalate | 1:48.40 | ||
| 37 | 2 | 7 | Charissa Panuve Finau Ohuafi Noelani Day Amini Fonua | 1:48.42 | ||
| 38 | 2 | 8 | Benjamin Schulte Amanda Joy Poppe Mineri Kurotori Gomez James Hendrix | 1:49.08 | ||
| 39 | 1 | 6 | Arleigha Hall Jack Parlee Alex Maclaren Luke Haywood | 1:52.11 | ||
| 40 | 2 | 4 | Olimjon Ishanov Karina Klimyk Fakhriddin Madkamov Anastasiya Tyurina | 1:54.53 | ||
| 41 | 4 | 1 | Aishath Sausan Mubal Azzam Ibrahim Hamna Ahmed Imaan Ali | 1:57.70 | ||
| 1 | 3 | |||||
| 1 | 4 | Ridhwan Mohamed Rebecca Kamau Imara-Bella Thorpe Danilo Rosafio | ||||
| 2 | 3 | |||||
| 4 | 0 | |||||
| 4 | 7 | |||||
| 3 | 0 | Manuel Leuthard Ivo Staub Alexandra Touretski Svenja Stoffel |
Final
The final was held at 20:44.| Rank | Lane | Nation | Swimmers | Time | Notes |
| 4 | Caeleb Dressel Ryan Held Mallory Comerford Kelsi Dahlia | 1:27.89 | |||
| 2 | Jesse Puts Stan Pijnenburg Ranomi Kromowidjojo Femke Heemskerk | 1:28.51 | |||
| 5 | Vladimir Morozov Evgeny Sedov Maria Kameneva Rozaliya Nasretdinova | 1:28.73 | |||
| 4 | 6 | Katsumi Nakamura Kosuke Matsui Aya Sato Runa Imai | 1:29.51 | ||
| 5 | 7 | Matheus Santana César Cielo Larissa Oliveira Etiene Medeiros | 1:29.91 | ||
| 6 | 3 | Cameron McEvoy Cameron Jones Holly Barratt Emily Seebohm | 1:30.09 | ||
| 7 | 8 | Santo Condorelli Andrea Vergani Federica Pellegrini Elena Di Liddo | 1:30.96 | ||
| 8 | 1 | Andrei Tuomola Ari-Pekka Liukkonen Jenna Laukkanen Mimosa Jallow | 1:31.23 |