Take on the Thames Path Challenge following England’s greatest river. Most people will walk, many will jog, some will run – and all have special reasons to push themselves.
The full Thames Path Challenge 100km route heads from Putney Bridge past Hampton Court to the 50km point at Runnymede – home of the Magna Carta – then on past wonderful historic scenery all the way to Henley. With 75km, 50km and 25km challenge options also available, there’s a challenge for everyone. Your challenge will be a test of spirit and determination.
Your entry includes free food and drink at regular rest stops, plus support including medics, marshals and massage. As you cross the finish line, you’ll get a glass of fizz, t-shirt, and a medal to commemorate your achievement, before heading to a BBQ and a well earned rest.
As Dementia UK is an official partner of this event, you will receive a 50% discount on the ‘full sponsorship’ registration fee when signing up to support us.
Head to the Dementia UK Ultra Challenge page to find out full details of prices and to sign up.
Full sponsorship: you pay a small registration fee and we’ll cover the remaining cost of your event place as long as you hit your fundraising goal! As we are an official charity partner, you will receive a 50% discount on the standard registration fee. Prices after the charity partner discount are:
For charity sponsorship places, to secure your entry, you’ll need to raise 50% of your full fundraising target no later than three weeks before your challenge. You’ll get lots of support and reminders from us to help you achieve this! The remaining sponsorship can be sent to us in time for your event (or no later than four weeks after your challenge).
Mixed funding: pay half the cost of your event place yourself, fundraise a bit less and we’ll cover the balance of your registration fee.
For charity sponsorship places, to secure your entry, you’ll need to raise 50% of your full fundraising target no later than three weeks before your challenge. You’ll get lots of support and reminders from us to help you achieve this! The remaining sponsorship can be sent to us in time for your event (or no later than four weeks after your challenge).
Own place fundraising: you pay the full cost of your event place yourself, then fundraise as much as you can – there’s no set target or deadline, and no cost at all to Dementia UK.
The Ultra Challenge website has further details of the event. For any specific questions about the event, please get in touch with the Ultra Challenge Team at info@actionchallenge.com
Every penny you raise will make a huge difference to families facing dementia. Each donation, no matter how big or small, will help you reach your target. Did you know that someone simply donating £4 to your fundraiser could pay for the telephone costs of one family calling our free Helpline for immediate support.
to run a full day of face-to-face appointments for families affected by young onset dementia (where symptoms develop under the age of 65).
to answer calls on our Helpline on a Sunday, when other dementia services are closed.
for a whole week to support a community where people are struggling to access local dementia services.
Arti, who completed the Thames Path Ultra Challenge 2022If I could do something to raise awareness and help other families then I was proud to of completed this challenge in 12 hours. It was a tough walk, but the pain was worth everything and I would do it again just to support more wonderful charities.
1st December 2025 - 31st December 2026 We have partnered with Run For Charity to help you find the perfect challenge. With events across the UK and throughout the year, there’s always a challenge for you.
12th April 2026 An exceptional twist on the classic half marathon - join Team Dementia UK at the extraordinary London Landmarks Half Marathon, the only closed road race through central London!
12th April 2026 Tackle this fast and flat coastal marathon in one of the country’s most vibrant cities for Dementia UK and help families facing dementia.
