Chiltern 50 Challenge
Take part in the Chiltern 50 Challenge on Saturday 27 September 2025.
This 50km looped route covers some of the best of the Chilterns countryside. You can walk, jog or run along historic trails and over rolling hills.
Passing through nature reserves, forests, and a few hills with great views - it's a route with real variety and some wonderful scenery - and it's all easily accessible from London. With 25km and 10km challenge options also available, there's a challenge here for everyone – and you can join as an individual or as a team of friends or family.
Choose your challenge
Charity sponsorship
50km challenge: secure your place for £40 when you pledge to raise £375
25km challenge: secure your place for £30 when you pledge to raise £275
10km challenge: secure your place for £20 when you pledge to raise £100
Mixed and self-funding
Visit the Chiltern 50 Challenge website for more information on mixed funding.
What’s included
- free food and drink at regular rest stops
- support including medics, marshals and massage
- as you cross the finish line you’ll get a glass of fizz, a t-shirt and a finisher's medal
- much more!
Your MS Superstar VIP package
When you fundraise with us you'll get:
- an MS Society t-shirt to make you look the part on the day
- a welcome pack crammed with fundraising tips and materials to help you reach your goal
- support from our dedicated events team to help you achieve your goals
Want to be there?
We'd love to have you on the team!
Need some help?
If you have any questions about running for us, get in touch with our friendly fundraising team.
Download own terms and conditions
You may also be interested in
Will you help us stop MS?
We’ve now reached a crucial moment in our journey towards stopping MS.
You can help drive our research forward - so everyone with MS can get the treatment they need.
