Chiltern 50 Ultra Challenge

Henley-on-Thames, United Kingdom • 27 Sep 2025

The Chiltern 50 Ultra Challenge is an exciting endurance event set in the picturesque Chiltern Hills, offering participants the choice to walk, jog, or run. Scheduled for September 27, 2025, the challenge features various distance options, including 50 km, 25 km, and a 10 km loop, all starting and finishing at the Henley Basecamp. Participants can enjoy scenic trails, historic routes, and nature reserves, with full support provided throughout the event. The experience includes a celebratory BBQ, bar, and entertainment at the basecamp, making it a perfect end-of-season challenge for adventurers of all fitness levels. Visit the organization's website for the most recent information.

Race information

UTMB 20K UTMB 50K
50 km
920 m+
25 km
500 m+
10 km
235 m+
Visit the organization's website for the most recent information.
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