2014 FINA World Swimming Championships (25 m) – 4 × 50 metre mixed freestyle relay
The 4 × 50 metre mixed freestyle relay competition of the 2014 FINA World Swimming Championships was held on 6 December.
Records
Prior to the competition, the existing world and championship records were as follows.| Nation | Time | Location | Date | |
| World record | 1:29.53 | Herning | 14 December 2013 |
The following records were established during the competition:
| Date | Event | Nation | Time | Record |
| 6 December | Final | 1:28.57 | WR |
Results
Heats
The heats were held at 12:37.| Rank | Heat | Lane | Nation | Swimmers | Time | Notes |
| 1 | 2 | 5 | Josh Schneider Darian Townsend Amy Bilquist Natalie Coughlin | 1:30.80 | Q | |
| 2 | 2 | 1 | Alan Vitória Henrique Martins Daiane Oliveira Alessandra Marchioro | 1:31.68 | Q | |
| 3 | 1 | 1 | Marco di Carli Steffen Deibler Dorothea Brandt Daniela Schreiber | 1:31.74 | Q | |
| 4 | 3 | 8 | Oleg Tikhobaev Nikita Konovalov Veronika Popova Margarita Nesterova | 1:31.80 | Q | |
| 5 | 2 | 3 | Marco Belotti Niccolo Bonacchi Silvia Di Pietro Erika Ferraioli | 1:32.07 | Q | |
| 6 | 1 | 2 | Bogdan Plavin Daryna Zevina Hanna Dzerkal Andriy Hovorov | 1:32.39 | Q | |
| 7 | 3 | 6 | Luke Pendock Clayton Jimmie Lehesta Kemp Trudi Maree | 1:33.28 | Q | |
| 8 | 1 | 3 | Sindri Jakobsson Sverre Naess Cecilie Johannessen Susann Bjornsen | 1:34.48 | Q | |
| 9 | 3 | 5 | Reo Sakata Yuki Kawachi Asami Chida Rena Nishiwaki | 1:34.64 | ||
| 10 | 3 | 7 | Ng Chun Nam Derick Chan Kin Lok Mak Ho Lun Raymond Stephanie Au | 1:35.80 | ||
| 11 | 1 | 6 | Nazim Belkhodja Souad Nafissa Cherouati Sahnoune Oussama Amira Raja Kouza | 1:37.69 | ||
| 12 | 1 | 7 | Gavin Alexander Lewis Jenjira Srisa Ard Araya Wongvat Kitiphat Pipimnan | 1:38.46 | ||
| 13 | 3 | 0 | Davíð Hildiberg Aðalsteinsson Inga Elín Cryer Kristofer Sigurðsson Eygló Ósk Gústafsdóttir | 1:39.24 | ||
| 14 | 3 | 1 | Lei On Kei Sio Ka Kun Chao Man Hou Tan Chi Yan | 1:39.48 | ||
| 15 | 1 | 8 | Stanford Kawale Shanice Paraka Anna-Liza Mopio-Jane Ryan Pini | 1:40.38 | ||
| 16 | 2 | 7 | Andrés Olvera Montserrat Ortuño Daniel Carranza Ayumi Macías | 1:41.41 | ||
| 17 | 1 | 4 | Rafael Santa Maria Ariana Herranz Jethro Chua Evangelio Dato | 1:42.90 | ||
| 18 | 2 | 8 | Hamdan Bayusuf Talisa Lanoe Micah Fernandes Emily Muteti | 1:44.57 | ||
| 19 | 2 | 2 | Gianluca Pasolini Cristian Santi Beatrice Felice Elena Giovannini | 1:44.65 | ||
| 20 | 3 | 3 | Adam Moncherry Alexus Laird Anisha Payet Dean Hoffman | 1:45.19 | ||
| 21 | 2 | 0 | Klavio Meça Diana Basho Nikol Merizaj Franci Aleksi | 1:51.24 | ||
| — | 1 | 5 | DNS | |||
| — | 2 | 4 | DNS | |||
| — | 2 | 6 | DNS | |||
| — | 3 | 2 | DNS | |||
| — | 3 | 4 | DNS |
Final
The final was held at 19:39.| Rank | Lane | Nation | Swimmers | Time | Notes |
| 4 | Josh Schneider Matt Grevers Madison Kennedy Abbey Weitzeil | 1:28.57 | WR | ||
| 6 | Evgeny Sedov Vladimir Morozov Veronika Popova Rozaliya Nasretdinova | 1:29.13 | ER | ||
| 5 | César Cielo João de Lucca Etiene Medeiros Larissa Oliveira | 1:29.17 | SA | ||
| 4 | 2 | Luca Dotto Marco Orsi Silvia Di Pietro Erika Ferraioli | 1:29.22 | ||
| 5 | 3 | Steffen Deibler Marco di Carli Dorothea Brandt Daniela Schreiber | 1:30.55 | ||
| 6 | 7 | Bogdan Plavin Daryna Zevina Hanna Dzerkal Andriy Hovorov | 1:31.51 | ||
| 7 | 1 | Luke Pendock Clayton Jimmie Lehesta Kemp Trudi Maree | 1:33.19 | ||
| 8 | 8 | Lavrans Solli Sindri Jakobsson Cecilie Johannessen Susann Bjornsen | 1:33.88 |