Chiltern 50 Challenge

This end of season 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.  Starting & finishing at our Base Camp in Henley-on-Thames, there’s a Saturday night celebration BBQ & entertainment with camping options.

Passing through nature reserves, forests, and 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 options also, there’s a Chiltern Challenge for everyone!

  • Join as an individual or a team
  • 50km Full Challenge
  • 25km Half Challenge options
  • Rest stops – free food & drink
  • All meals/food included
  • Walk, Run or Jog – set a New Goal
  • Medics, massage, and pace walkers
  • Camping options available
  • Medal, T shirt, glass of bubbly!
  • Pre-event training support + App

Join in for an unforgettable end of season celebration Challenge in the Chilterns.

More information

Visit the event website for more information.

Fundraising options

Tap the ‘Register’ button to apply for a Thyroid UK Charity place via the event organiser. We will contact you with instructions on how to confirm your place.

Charity sponsorship

Pay a small registration fee and do lots of fundraising! We cover your event place cost.

EventRegistration feeMinimum sponsorship
50km Full Challenge£10£395
24km Half Challenge£5£245

Mixed funding

Lower charity fundraising target & you pay half the event self-fund cost (We pay the other half).

EventRegistration feeMinimum sponsorship
50km Full Challenge£64.50£199
24km Half Challenge£39.50£119

Note: At least 50% of the Minimum Sponsorship target should be with Thyroid UK by 6 weeks prior to the Challenge. At this time we will pay a Fee for your place to the Organiser (similar to the Self Funding cost). Failure to meet the 50% target may result in cancellation by us. The remaining 50% should be with Thyroid UK 4 weeks after the Challenge.

Self funding

Pay full event place cost when you register.  Fundraise as much as you can for us. 

EventRegistration feeMinimum sponsorship
50km Full Challenge£119£0
24km Half Challenge£69£0


Sat 25 Sep 2021


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