The Ultimate Swimming Challenge

Swimming now has its own marathon

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Marathon Swims

Marathon Swims 2020 registration is open

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 7 and 8 November 2020 at the venue of the London 2012 Olympic and Paralympic Games – the London Aquatics Centre, on Queen Elizabeth Olympic Park.

ENTER now and secure your place in London's marathon of swimming. Marathon Swims SOLD OUT in 2017, 2018 and 2019. Don't miss out in 2020.

Marathon 10k: Sat 7 Nov - SOLD OUT. Sun 8 Nov - Places available

Marathon 10k Team: Places available

Half Marathon 5k: Places available

1k Challenge: Places available

COVID-19 Update available

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

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The Ultimate Swimming Challenge

Marathon Swims:

London Aquatics Centre

7 and 8 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 .

ENTER Marathon Swims 2020 today to take on the Marathon 10k, Half Marathon 5k or 1k Challenge.