Chiltern Challenge

This edition has finished
JUL
19
2025
Read all about the Chiltern Challenge on 19 Jul 2025 in Princes Risborough.
UTMB 50K 50 kilometers 25 kilometers 10 kilometers

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About the race

The Humanity Direct Chiltern Challenge is a one-day ultra running event held in the scenic Chiltern Hills, starting and finishing at Princes Risborough School in the South East of England. Participants can choose from three distances: 10km, 25km, or 50km, with ascent gains ranging from 258 to 871 meters. The course follows well-marked circular routes using National Trails and footpaths, featuring multiple checkpoints with food and water for longer distances.

The event offers a supportive atmosphere with fully stocked aid stations, medical cover, free parking, transport from the train station, and refreshments at the finish. Entry fees support Humanity Direct, funding vital surgeries for children in developing countries. Visit the organization's website for the most recent information.

Events nearby

Trail races at Wendover Woods offer marathon, half, 10k and junior distances on hilly mixed forest trails with views from Haddington Hill.
Night trail at Stonor Park with three marked routes of 7 km, 13 km and 17 km, timed results, one outpost on middle and long routes and no dogs allowed.
Experience a scenic trail run through the Bedfordshire countryside with a choice of a half marathon or metric half marathon along the Grand Union Canal and woodland paths.
Trail races of 7 km, 13 km, and 22 km through Stonor Park and the Chilterns, with steep sections, marked courses, and outpost support.
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