Chiltern Hills 100K

Clissold Park hosts a penultimate event in the Park Race series organized by Dartford Orienteers, set in largely open parkland featuring a mansion, lakes, a water fountain, skateboarding area, and adventure playground. The event offers two courses: a 2.5 km short course and a 5.0 km long course, wit..

The Hughenden Valley 10K is a popular trail running event held around the National Trust's Hughenden Manor estate near High Wycombe. The 10-kilometer course features a hilly terrain with over 195 meters of elevation gain, winding through beautiful woodland and rural trails in Hughenden Valley. The r..

The Hughenden Valley Half Marathon is a scenic trail running event held at the National Trust's Hughenden Manor and surrounding woodlands in the UK. Covering 21.1 km with over 450 meters of elevation, the course features woodland trails and challenging hills, offering a mix of ups and downs without..

The Maverick X Series Chilterns 2025 is a trail running event held at the historic Stonor Park estate near Henley-on-Thames, Oxfordshire. Set within the Chilterns Area of Outstanding Natural Beauty, the race offers four challenging routes ranging from 12 km to an ultra 52 km, featuring significant e..

The Humanity Direct Chiltern Challenge is a one-day ultra running event held in the scenic Chiltern Hills, starting and finishing at Princes Risborough School in the South East of England. Participants can choose from three distances: 10km, 25km, or 50km, with ascent gains ranging from 258 to 871 me..

The ATW St Albans Summer 10K is a flat, fast, and chip-timed race held at Highfield Park, St Albans, Hertfordshire. The single-lap course follows the scenic, traffic-free Alban Way, a tree-lined disused railway path, looping through Sleapshyde before returning to the park. The route is mostly on tar..