Runaway Adventures - Chiltern Hills 100k

The Chiltern Hills 100K is an ultra marathon set to take place on April 26, 2025, featuring a scenic route through the picturesque Chiltern Hills. Starting and finishing in Chesham, the race covers an anticlockwise loop that includes notable landmarks such as Ashridge Estate and Coombe Hill, while incorporating sections of The Ridgeway, Chiltern Way, and South Bucks Way. Participants will navigate a marked course with GPS tracking and have access to multiple aid stations along the way.

The event is open to runners aged 20 and above, with a maximum of 250 entrants allowed. Visit the organization's website for the most recent information.