ATW Odyssey12

The Dunstable Downs Challenge Half Marathon is a scenic trail running event organized by Dunstable Road Runners, held at Creasey Park Football Centre in Dunstable. The 13.1-mile course takes runners across the picturesque Dunstable Downs and surrounding rural areas, primarily on public footpaths and..

Thaxted Trail Marathon & Half Marathon takes place in Thaxted, Essex, starting from Thaxted Church Hall. The event offers two self-navigation trail distances: a marathon and a half marathon. There are no course markings or GPX files, and no marshals; participants follow a written route description i..

The Triple Trail Races, held at Loddington Farm in Kent, offer three challenging distances: 25km, 50km, and 100km, traversing Kent's iconic North Downs Way, Greensand Way, and Weald Way. The 100km race is a unique single-loop ultra marathon showcasing scenic countryside, historic landmarks like Leed..

BRJ Run & Tri presents the Ouse Valley Way Marathon and Half Marathon, held on 21 September 2025 in Huntingdonshire. The event follows the Ouse Valley, a scenic, flat route designed along grass, gravel and tarmac paths. The classic route runs from Earith to Eynesbury, offering river views and rural..

Manuden 10K, 5K and 1K takes place in Manuden, with the start/finish on Rickling Road near the Yew Tree pub. The event offers three distances: 10k and 5k routes that head off-road across fields, bridleways and footpaths, plus a 1k route for younger runners. Medals are awarded to all finishers, and w..

The Endless Garden – A Backyard Ultra Marathon takes place at The Waggoners in Ayot Green, Welwyn Garden City, United Kingdom, from 27 to 29 September 2025. The race uses a 4.167-mile trail loop run hourly on the hour, with the field whittling down to a sole finisher. The route is designed to be saf..