|Date||Saturday 28th August, 2021|
|Location||Ivinghoe Beacon, Ashridge Estate|
|Area||Buckinghamshire, Bedfordshire & Hertfordshire|
|Start postcode||HP4 1LX|
The route is 86 miles along The Ridgeway National Trail, a 5000 year old trackway through the Chiltern Hills and North Wessex Downs (along Grim’s Ditch for several miles), Barbury Castle and Liddington Castle (hill forts) en route, way marked throughout with 1929m (6328 feet) ascent 1991m (6532 feet) descent. The event hosts the British Trail Running Championships Ultra Distance.