Trail Running calendar near Dunstable Downs 2026-2027

Test your limits at World's Toughest Mudder, a premier 24 hour obstacle course challenge at Belvoir Castle. Compete individually or in a relay team to conquer 5 mile loops and elite obstacles for an entire day and night.

Experience an intimate trail run at the exclusive Hyde Hall Farm in Hertfordshire with lap based distances ranging from 5k to an Ultra Marathon. Enjoy a supported course with on site parking and a custom finishers medal.

Explore the scenic Surrey Hills and North Downs Way with five trail distances ranging from 5 km to a 52 km ultra. Run through ancient forests and rolling fields with punchy hills and fully marked courses.

Experience an off road adventure through the private Matterley Estate in the South Downs National Park. Choose between a 10km or half marathon distance on a well marked course featuring gravel tracks and woodland trails.

Experience a summer trail running event in the scenic Thames Valley with distances ranging from 5k to a half marathon. Enjoy well marked routes through the Marlow countryside featuring chip timing and a unique themed medal.

Experience a day of trail running through the scenic woodland of Salcey Forest with four distance options ranging from 10km to 50km and generous cut off times.

Experience a scenic 10km mixed terrain run through the trails and woodland of Hatfield. Starting and finishing at the 3 Brewers Brewery, participants enjoy chip timing and a complimentary drink at the finish line.

Experience a scenic trail run starting from a working farm in the South Downs. Choose between a half marathon or 10K featuring well kept paths and panoramic views of the East Sussex countryside.

This point-to-point ultra follows the unique Hangers Way path through Hampshire's steep wooded hills and villages. Starting at Alice Holt Country Park and finishing at Queen Elizabeth Country Park, the 50K course is fully signed and support..

Traverse the scenic South Downs on a multi terrain route featuring the Greenwich Meridian Trail. Enjoy undulating paths through bridleways and historic villages with a bespoke medal for all finishers.

The Midsummer Munro is a half marathon held at Box Hill Fort in Surrey. The event takes place in late June. Runners can register online until the day of the race.

Join this five kilometre fun run or walk across the undulating trails of Therfield Heath. This family friendly event features a two lap off road course and raises funds for the Teenage Cancer Trust.

Experience a historic trail run through the scenic Ashridge Woods on this five mile course. Enjoy a marshalled off road route starting and finishing at the Aldbury Recreation Ground with refreshments provided at the finish.

Experience a guided 10km trail run through the spectacular natural amphitheatre of the Devil's Punchbowl. This social group run features beautiful Surrey hills and is available as both a sunset and a headtorch night edition.

Follow the 82 mile Essex Way trail from Epping tube station to the historic high lighthouse in Harwich. This ultra marathon features mixed terrain and 3,469 feet of elevation with full GPS tracking and five checkpoints.

A timed charity run along the Thames with lap options from 5.3 km up to ultra distances. The Run for a Tenner entry donates £10 to Rays of Sunshine and all finishers receive a bespoke medal.

Experience a unique point to point half marathon along the scenic canal towpaths from Wolverhampton to Birmingham. Run through the historic Coseley Tunnel and enjoy water stations hosted on traditional canal barges.

Experience a festival of trail running through the South Downs National Park with distances from 10km to 100km. Enjoy sandy paths and ancient woodlands with included coach transport and on-site camping.

Choose your own challenge at the Summer Sun Run, a flexible lap event set in the scenic Denbies Wine Estate. Complete as many 5.3 km laps as you like within 7 hours, with a large medal for all finishers. Enjoy a flexible start window and a..

Run a flexible distance along Winchester's scenic Itchen Way in this American-themed event. Choose your own challenge from a 2.62-mile loop, with trophies for the best costumes. Enjoy a well-stocked aid station and a flexible start time.