The World’s biggest triathlon welcomes over 13,000 triathletes to swim, bike and run around London's landmarks. Join the Rethink team today and receive a free top and incredible fundraising support leading up to the event.
You’ll be treated to an unforgettable open water swim in the Thames from London Docklands, wiz through London’s under-pass tunnels (watch out for the climb on the way out!) and a blisteringly fast an all importantly flat run around the impressive 2012 Olympic venue, the Excel.
Each year thousands of supporters bring the noise and add to the energy and incredible atmosphere of the triathlon. Impressive high-rise views of London as well as taking a tour of some of its landmarks await you, but more importantly, be prepared to be pushed to your limits like no other endurance event.
Join some of the world’s best athletes and go toe to toe in Olympic distance triathlon. Hugely popular and must-do distance for any triathlete. It’ll be a challenge, but you know that, yet you can achieve greatness in London with a booming crowd behind you.
Show London what you’re made of.
"I had a fabulous time last year at my first ever Triathlon. A huge learning experience and met some wonderful people. I'm coming back to complete the next level up next year"
"...had a great day this year, looking forward to doing it all over again!"
"Fantastic race - well organised, really enjoyed"
Sign up for a new challenge and support a charity of your choice, even before general entries are open! Each charity will have their own fundraising target and incentives to help you get there. By becoming part of a charity team, you'll get some much-needed support in the run up to the event, on the big day itself and beyond.
The route is made up multiple laps. The opening swim takes place in London Docklands; you’ll then transition to bike inside the Olympic venue of the Excel. You’ll then follow a closed road cycle route taking in some of London’s best land marks roughly following the Thames – this section is made up of multiple laps. A final transition inside the Excel before running in and around the building itself.
Please click here to view the Olympic distance route map
Get instant access to full event details including how to secure your place.
Full details about costs and fundraising.
If you would like any help or advice, please contact our helpdesk.
The vision of Rethink Mental Illness is to transform the way our nation approaches mental illness. Through their network of over 140 support groups, over 200 services in England and successful campaigning they are improving the lives of people affected.
Of money you raise £24 could help them take a helpline call or £100 could pay for two people to attend a local support group for a year.
Registered no: 271028.