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Chiltern 50 Ultra Challenge

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

Chiltern 50 Ultra Challenge is part of Ultra Challenge’s UK trek and trail series, based at Henley Showground. It offers a 50 km loop (920 m ascent) and a 25 km option, plus a 10 km Chilterns route. The end-of-season course winds through the Chilterns’ historic trails, rolling hills, nature reserves and viewpoints, easily accessible from London.

Participants enjoy full support at marquee rest stops with food, drink, medical and massage teams, and GPS-tracked, clearly signed routes. The Henley basecamp features a Saturday night celebration, on-site camping and parking, plus transfers. Ultra March and Solo Challenger options welcome walkers and runners alike. Visit the organization's website for the most recent information.

United Kingdom South East (England) Henley-on-Thames

Race information

Website
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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