Trail Running calendar near Grantchester 2026-2027

Timed Thames towpath run where participants choose lap distances on a 5.3 km out and back course and entry supports Rays of Sunshine Children's Charity.

Experience a guided group trail run through the Surrey Hills designed to reach 1000m of elevation. This non competitive 12.5 mile journey features technical climbs and woodland trails led by an experienced mountain leader.

An 80 mile winter ultramarathon on 5 December 2026 across Essex, Suffolk and Norfolk with mandatory kit requirements, checkpoint cut-offs and live tracking via Open Tracking. Entry pricing is tiered with limited discounted places.

Experience an ultramarathon through the Surrey Hills starting from Dorking. Run over Leith Hill and Pitch Hill on a signed 50 km trail route that qualifies for the UTMB index.

A single 10 mile canicross loop at Grafham Water on 6 December 2026, starting on the dam and circling the reservoir. The event includes dog-friendly facilities, a finisher medal with a dog charm, and nearby camping.

Celebrate the season at Ferry Meadows with a flexible multi-terrain lap challenge. Run as many 5.3 km loops as you like within a 4 or 6 hour window to earn your finishers medal.

A 10 km trail championship at Wendover Woods on 6 December 2026, limited to 200 invited runners who meet qualifying criteria. The course has 295 m of elevation, route marking, chip timing and age category awards.

A 200 mile continuous trail run around southern England from Juniper Hall, held 9 to 13 December 2026. Runners have up to 96 hours, live tracking, crew access and three major aid stations with hot food and sleeping facilities.

Join the Christmas Jumper Friday Run on 11 December in Walton on Thames for a relaxed rock up and run along the riverside towpath. Pick 5k to ultra, run laps within a 7 hour window and earn a bespoke finisher medal.

A festive midweek time challenge on the River Thames with flexible starts and distances from a 3 km minimum up to 50 km. Medals, distance pins and goody bags are provided, with aid stations and a mix of path and light trail surfaces.

A 100 mile winter point to point trail across the South Downs and North Downs with a 35 hour limit, three aid stations, mandatory winter kit and a field limited to about 100 runners.

Join the Mince Pi Run in Guildford for a Pi themed run by the water, with distances from a 1 mile kids fun run to the 3.14 mile loop and laps up to a Pi marathon. Every finisher gets a bespoke Pi Pie medal.

A seasonal trail event at Salcey Forest offering 10k, 5k and a 1.2 km junior run on tree lined, mostly flat forest trails. The race raises funds for Shelter and includes a bespoke medal and free photographs.

A looped forest event at High Lodge, Thetford Forest offering distances from 5k to ultra on a 5.3 km lap, with on-course aid, bespoke medals, reduced parking for participants, and a portion of fees supporting forest upkeep.

Festive themed half marathon on woodland trails, meadows and country lanes around Mid Suffolk, starting and finishing at Stowmarket Football Club. Manually timed cupless race with water refill, mince pie, photography and optional eco friend..

Join a festive Christmas run along the flat Jubilee River. Choose your own distance in this 6-hour timed event on a scenic towpath. All finishers receive a bespoke festive medal.

Celebrate the end of the year with this festive event in Bury St Edmunds. Choose between 5k and ultra distances on an undulating course with a seven hour cut off and bespoke medals for all finishers.

A dawn to dusk winter trail challenge at Box Hill in Dorking on 19 December 2026. Runners complete a roughly 10 mile loop with about 2,400 ft climb per lap and may stop after any completed lap.

A 50 km winter trail event on the North Downs Way from Detling to Wye with about 1,000 m of ascent, three checkpoints and mandatory kit checks. The route passes Boxley Warren, Thurnham Castle, Lenham Cross and the Wye Downs.

Festive trail runs at Wendover Woods on 20 December 2026, with a Family Santa Mile and 5- and 10-mile races; finishers receive medals and seasonal treats. Entry fees range from £14 to £29.