England's greatest river provides a fantastic backdrop for an unforgettable challenge, which you can take on at your pace as a walk, jog, or run - and fundraise for Garden House Hospice Care! Over 3000 adventurers will join the Putney Bridge start, and the full 100km route heads upstream to Henley along the famous Towpath. It's through Richmond, Hampton Court, Runnymede, and Windsor, with some wonderful scenery to a riverside finish line.

Sign up as an individual or as a team; you'll get full support all the way, plenty of food and drink, optional camping and transfers, a special medal, t-shirt and celebration finish. With 50km, 25km and Henley 10km options also available - there's a Thames Path Challenge for everyone! Push yourself further in 2026, take on an Ultra Challenge - the UK's No.1 Series of treks and trail challenges.

Walk, jog or run

100km, 50km, 25km, 10km options

Food and drink

Medal and t-shirt

New Year Deal: Sign up in January and get 50% off standard reg fees!

Register on the Ultra Challenge website

View the 2026 Ultra Challenge calendar