Trail Running calendar near Earith 2026-2027

Race two of the 2026 Trifarm trail series, this 10K summer run is over 95% off-road on public paths. Starting near a humpback bridge at Trifarm in Boreham, the anticlockwise course finishes with a lap around the lake.

Complete three races over three days to achieve a full marathon distance at the Colworth Estate. This multi terrain event in North Bedfordshire offers distances of 5 miles, 8.1 miles, and a half marathon.

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.

Join this intimate trail event at Hyde Hall Farm featuring distances from 5k to an Ultra Marathon. Enjoy undulating farm tracks and grassland with secure parking and bespoke medals provided for all finishers.

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.

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.

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.

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..

Experience a chip timed multi terrain race through the picturesque country roads and bridleways of Willingham. Choose between 10km and 4 mile routes followed by fun races for children at the local recreation ground.

A scenic half marathon on the historic Ridgeway National Trail in Buckinghamshire. The hilly, fully-marked trail route connects Wendover and Princes Risborough, passing through the Whiteleaf Hill Nature Reserve.

Join this community fundraising event featuring chip timed races on traffic free roads through East Hertfordshire. Choose between road races or a children's run while supporting new local sports facilities.

A women only trail event at Denbies Wine Estate in Surrey on 5 July 2026 offering 50K, 25K, 10K and a kids race. No cut offs and options for in person or virtual participation, with profits supporting the SheRACES mission.

Marston Madness is a 6-hour endurance challenge on a scenic 5k loop. Run solo or with friends to see how many laps you can complete, with professional chip timing tracking your progress in a supportive atmosphere.

Enjoy a guided 10km group trail run through the beautiful Thursley National Nature Reserve. This flat course features a famous boardwalk and is led by an experienced guide at a steady social pace.

Experience a multi terrain 5k run through the ancient woodland of Fermyn Woods Country Park near Corby. This chipped event welcomes runners of all abilities aged 11 and over with bespoke medals for all finishers.