Chiltern Challenge
Princes Risborough, United Kingdom • 19 Jul 2025
The Humanity Direct Chiltern Challenge is a one-day endurance event set in the picturesque Chiltern Hills, offering participants the choice of a 50km ultra marathon or a 25km half ultra. This event not only provides a challenging running experience but also supports a noble cause, as all entry fees and fundraising efforts go towards funding life-changing operations for children in developing countries. The route is well-marked and includes checkpoints with food and water. Participants can enjoy a supportive atmosphere, with amenities such as free parking, medical support, and refreshments at the finish line. Visit the organization's website for the most recent information.