ATW Chiltern Half Marathon

Bellingdon, United Kingdom • 25 May 2025

The ATW Chiltern Half Marathon & 10K is a scenic running event held in the Chiltern Hills near Bellingdon, Chesham. Participants can choose between a half marathon or a 10K trail run through the Area of Outstanding Natural Beauty, featuring rolling landscapes with challenging climbs and rewarding descents. The course offers picturesque views and a chance to connect with fellow athletes in a vibrant atmosphere.

The event coincides with the Chiltern 100 Cycle Sportif, creating a weekend of sporting activities. On-site camping, live music, food, and a bar enhance the experience. The event also supports Alzheimer's Research UK, encouraging fundraising alongside the challenge. Visit the organization's website for the most recent information.

Race information

13 mi
Half Marathon
10 km
10k
Visit the organization's website for the most recent information.
Trail runs nearby

Take on Phoenix Running's Octopus Run on 15 March 2026 at Walton on Thames for a scenic towpath challenge along the River Thames, with distances from 5 km to ultra and flexible start times. Finish your effort and collect a bespoke finishers..

Join Gratitude 25KM 2026 in Broxbourne for a rewarding 25 km run on 21 March 2026. Ticketed entry and a welcoming atmosphere make it ideal for runners looking for a spring challenge.

Experience a scenic trail run through the royal grounds of Windsor with views of the historic castle. Choose between a chip timed 10k or half marathon on a flat and fast course in Alexandra Gardens.

Tackle a rugged 6 mile off road cross country at Manor House Farm in Hardwick near Aylesbury on 22 March 2026. Limited to 300 runners, the undulating farm route crosses fields, streams and tracks and finishes with hot drinks and a memento.