Ridgeway Challenge 86 Miles
A continual running event, 86 miles along a 5000 year old trackway through the Chiltern Hills and North Wessex Downs (along Grim's Ditch for several miles); 9,000 feet of ascent. Starts on the top of Ivinghoe Beacon. Entrants must be at least 21 years old. Incorporating the UK Trail Running Championships Ultra Distance. 24/25 August.