The Ultimate Swimming Challenge

Swimming now has its own marathon


Marathon Swims


Marathon Swims is the ultimate swimming challenge.  Swimming now has its own marathon. Take on the Marathon 10k (as a team or individual), Half Marathon 5k or the 1k Challenge.

Marathon Swims 2020:

Marathon Swims 2020 will be in November 2020 at the venue of the London 2012 Olympic and Paralympic Games – the London Aquatics Centre, on Queen Elizabeth Olympic Park.


REGISTER Your Interest now and be first to hear of the event launch. Don't miss out.

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: 
London Aquatics Centre

November 2020

Dive into the Pool of Champions. The Marathon Swims: London  event is hosted at the iconic London Aquatics Centre, on Queen Elizabeth Olympic Park, Stratford, London .

Register your interest in Marathon Swims 2020 and be first to hear about the launch of London's swimming marathon 2020.

Checkout the results of Marathon Swims 2019 at the London Aquatics Centre 9 and 10 November.

Marathon Swims:
Sandford Parks Lido, Cheltenham

Saturday 27th July 2019

Checkout the results from the stunning Sandford Parks Lido in Cheltenham.

Other venues - We're also keen to hear where you want the next Marathon Swims events to be... so please  register your interest here



Press and media (including latest press releases)



Owned by Participation Sport Ltd.

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© 2019 Marathon Swims

Operated by Participation Sport Ltd.