- MIND OVER SWIMMER, Harry Needs, Michael Gunning , Russell Smith, Rebecca Adlington, Thomas Haffield, James Goddard, Emma Flanagan, Holly Hibbott, Thomas Hamer, Kyle Chisholm , Liam Selby , Charlie Hughes, Toby Broadhurst, Luke Gunning , Harrison Coulter , Isabel Spinley, Joseph Porter , Charlotte Atkinson, Jordan Cooley, Thomas Howdle, Maddie Crompton, Niki Williams, Megan Hughes , Craig Ward , Adam Frost, Matthew Tutty , Paul Barnard, Dan Coombs , Ciaran Beard-Jones, James Adams, Chloe Spiby Loh, Metin Ayhan , Dennis Walsh, Dale Curtis, James Gibson, Hayley Towner , Jennifer Rice , Sam Horrocks , Joe Mccue , Joseph Deighan, James Rollaston, David Gadiaga, Kaiden Welsby , Jake Clappison, Reece Grady, Hermione Roe, Tom Gilroy , Jack Hepburn, Rachel Lord, Michelle Mitchell, Jessica Mcdonough, Ciara Standing , Ben Foster, Daniel Burrows , Lauren Bradley-Holt, Martha Hurst, Josh Crews, Ben Potter , Olly Freeman , Sean Penter, Amy West , Tom Godfrey, Luke Spain , Harrison Brown , Sophia Wallis, Ryan Storey , Daniel Briggs, Samuel Goldrick, Dominic Powell, Emma Saunders, Kiera Henley , Lauren Cooley , Ben Middleton , Joel Donald , Jolan Bennett, Charlotte Kennedy, David Pugh, Nikolas Georgiou, Helen Sadler, Hannah Atkin , Molly Roodhouse , Alexander De Tullio, Harvey Jones, Olivia Herron, Daniel Heeley, Martin Goff, Rob Marsden , Fiona Sadler, Emma Rowson, Megan Goodwin, Eliza Pinkstone, Cathal O'Grady Smith, Edward Moriarty, David Crabtree, Millie Crabtree, Tim Davies, Sean Kelly, Richard Blackshaw, Emma Gage, Sam Corsan
- 43:32.36 minute(s):second(s)
- United Kingdom (Stockport)
The fastest 100 x 50 m swimming relay is 43 min 32.36 sec and was achieved by MIND OVER SWIMMER in Stockport, UK, on 4 May 2019.
The attempt was made up of individuals from swimming clubs in the local area aged from 14 to 53.