Chiltern 50 Ultra Challenge

A looped endurance challenge event in the Chilterns starting at Henley Showground, with route options from 10km to 50km and full on-course support.

A beautiful end-of-season, looped challenge in the Chilterns, featuring historic trails, rolling hills, nature reserves and panoramic views, with routes from 10km up to 50km.

Date: Sat 26 Sept 2026

Races

• Full 50km Challenge – 06.45am – Age 16+ – £139
• Henley 25km Loop – 08.30am – Age 14+ – £89
• The Chiltern 10K – 10.00am – Age 8+ – £49

Highlights

• Basecamp at Henley with celebration BBQ, bar and entertainment (as listed)
• Signed routes with GPS tracking and marquee rest stops
• Food and drink, medical and massage support
• Camping and parking options available (as listed)

Event HQ
Henley Showground, Marlow Road, Henley-on-Thames, Buckinghamshire, RG9 3AS, UK