Thames Path Ultra Challenge 2025
Explore England's greatest river for an unforgettable challenge with a fantastic backdrop. Join Team Macmillan for 50% off, and together we will go the extra mile to support the 3 million people living with cancer in the UK
About the event
The full Thames Path Ultra Challenge 100km follows England’s greatest river – from the Putney Bridge start, the full route heads upstream to Henley along the famous Towpath.
Going through Richmond, Hampton Court, Runnymede, and Windsor, you'll see some wonderful scenery that leads to a riverside finish line.
With 75km, 50km, 25km and 10km challenge options also available - there's a challenge here for everyone. You can join as an individual or as a team of friends and family.
As Macmillan are an official partner you get a 50% discount on the ‘Charity Sponsorship’ registration fee when signing up to support us. Head to the Macmillan Ultra Challenge page to find out full details of prices and to sign up.
How to enter the Thames Path Ultra Challenge
All distance options have Charity, Mixed Funding or Self Fund options.
Charity fundraising
Mixed fundraising
Self funded place
Great achievements lie beyond comfort levels - Join Team Macmillan!
Why should I join?
You’ll get full support and hospitality on the way, leaving you to focus on your challenge:
• Join as an individual or team
• Multiple distance options
• Camping packages available
• Take on the challenge at your own pace
• Fully supported and signed route event
• Food and drink provided
• Medical and welfare tents along the course
• Access to an exclusive Ultra Challenge event app
• Finisher’s medal, t-shirt, and glass of fizz - plus other goodies available!
How we'll support you
But most importantly...
We'll provide you with a reason to keep going because you'll know that you're helping improve the lives of people living with cancer.
Donations make up 98% of our annual income so we simply couldn't do what we do without you.
More about this event
For full information on this challenge, please visit the Macmillan Cancer Support Ultra landing page. You can also find FAQs here, or contact the Action Challenge event organisers directly
Please make sure you have read our Terms and Conditions before signing up.
Ready to join?
By joining us you'll know that you're helping improve the lives of people living with cancer in the UK today.
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