Chiltern 50 Ultra Challenge

The Chiltern 50 Challenge is a 50km hike along rolling hills. Starting and finishing at the Henley Showground, the route is packed with historic trails, nature reserves and fantastic views.

There's a also 10km route and 25km route if you're after something a bit quicker. 

How to enter

There are 2 entry options for the Chiltern 50 Challenge.

Charity funding

Pay a small registration fee and commit to a fundraising target. BHF will cover the cost of your event. As BHF is an official Ultra Challenge series partner, you’ll get 75% off on Charity funding entry places (excluding 10kms and 10 miles). Please enter the code ‘HELLO2026’ to redeem the extra discount during checkout.

Exclusive New Year Deal: save up to 75% on charity sponsorship options (excludes 10km).

10km distance

• £15 registration fee
• £150 fundraising target

25km distance

• £30 registration fee
• £275 fundraising target

50km distance

• £40 registration fee
• £375 fundraising target

Mixed funding

Pay 50% of the event place yourself and commit to a lower fundraising target.

10km distance

• £25 registration fee
• £100 fundraising target

25km distance

• £50 registration fee
• £150 fundraising target

50km distance

• £75 registration fee
• £225 fundraising target

To take part, you must raise the minimum sponsorship for your distance. We require half of your fundraising target 5 weeks before the challenge to secure your place. 

Please note these events are organised by Ultra Challenge. Participants raising funds for British Heart Foundation will be joined by others, raising money for different charities. Find out more on the Ultra Challenge website.