London's marathon of swimming


Marathon Swims


Marathon Swims is the ultimate swimming challenge. Swimming now has its own marathon.

Marathon Swims - Saturday 12 November 2022:

Marathon Swims is returning to the London Aquatics Centre, on Queen Elizabeth Olympic Park on Saturday 12 Nov!

Marathon Swims returns - book your place from 22 July.

Get a reminder for when public places open - Register your interest in Marathon Swims 2022 - London's marathon of swimming.

Marathon Swims format:

We've innovated in swimming to give you instant, reliable results using RFID chip technology to deliver an engaging, exciting challenge event (for spectators as well as participants). No need for lap counting or endless laps of the same lane.


Watch our 30 second Marathon Swims format explainer video:

Checkout out our previous 

Marathon Swims events at the London Aquatics Centre:

Find out more about the Marathon Swims event format

For further information - please see our FAQ's 

Who will be the next to make it on to the Marathon Swims Hall of Fame?

A big thank you to our Marathon Swims Partners


The Ultimate Swimming Challenge

Marathon Swims 2022

Saturday 12 November 2022

London Aquatics Centre

London's marathon of swimming returns to the London Aquatics Centre on Sat 12 Nov 2022. Take on the Marathon 10k, Half Marathon 5k or the 1k Challenge. Or team up with a friend to take on the Team 10k.

Marathon Swims returns - Book your place from 22 July.


Register your interest here.


Saturday 2 April 2022

Hillingdon Lido

The Marathon Swims SPRING SPRINTS is the season-opener for outdoor swimming. The 1km challenge was completed as many times as you liked (subject to available space) and included a super-cool medal.

The event was attended by Team GB's marathon swimmer and 25k British record holder, Hector Pardoe.

Results here



Press and media (including latest press releases)

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Created and operated by Participation Sport Ltd.

Owned by The Swimathon Foundation

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