Colworth Marathon Challenge

The Colworth Marathon Challenge is a unique running event held at the picturesque Colworth Estate in North Bedfordshire, UK. Participants can choose to enter one, two, or all three races, which together total 26.2 miles. The event features a 5-mile multi-terrain race, an 8.1-mile cross-country race, and a half marathon of 13.1 miles, taking place over three consecutive days.

The next challenge is scheduled for June 27-29, 2025, and includes family entertainment and kids' races. The event is organized by Colworth Striders and supported by Unilever and Colworth Science Park. Visit the organization's website for the most recent information.