Colworth Marathon Challenge

The ATW Odyssey12 is a unique 12-hour multi-terrain running event held at Riverside Park, Regatta Meadow in St Neots, Cambridgeshire. Participants run multiple flat 7km laps on scenic footpaths, passing the lively "Tent of Enlightenment" cheer station each time. Open to all abilities, competitors ca..

The Fen Gallop is a scenic running event held in Willingham, Cambridgeshire, featuring two main race distances: a 10km (6.2 miles) and a 4-mile (6.5km) multi-terrain course. The routes traverse flat country roads, footpaths, and bridleways, passing through Willingham and extending towards Over befor..

The Chiltern Ridge Half Marathon is a challenging and scenic trail running event held in Buckinghamshire along The Ridgeway National Trail. Starting and finishing in Wendover, the 21.1 km (half marathon) course features an undulating forest loop through Whiteleaf Hill Nature Reserve, with a total el..

Ultra:5K is a unique running event held at Box End Park, Kempston, near Bedford, Great Britain. The challenge involves running multiple 5K races on the hour, every hour, with two options: five 5K races over five hours (25 km total) or three 5K races over three hours (15 km total). The event emphasiz..

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 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..