Trail Running Calendar East of England 2026-2027

Experience a scenic run through the private grounds of the Sandringham Estate featuring a half marathon and shorter distances. This sustainable event offers a unique chance to pass the Royal House on a mix of roads and trails.

Volunteer run charity 10k and 3k through farmland near Grantchester on 27 September 2026, supporting Maggie’s Centre Cambridge and Addenbrooke’s Charitable Trust. Chip timing, medals, trophies, parking and post run services available.

Experience a scenic off road run through the fields surrounding Manuden with distances of 10k, 5k, and 1k. Enjoy locally organized routes with course water stations and finisher medals for all participants.

Hit the trails at London EcoTrail 25 KM on 3 October 2026 in Epping's Bell Common. Enjoy a scenic 25 km route through woodlands and countryside, perfect for trail runners craving a nature filled challenge.

Run a scenic 5-mile trail through Cawston Park estate to support Norfolk Lowland Search and Rescue. This chip-timed, off-road race offers prizes for top finishers and a memento for all. On-site parking and refreshments are available, with p..

Multi terrain 10 km and 5 km runs around Thompson with bespoke medals and trophies. Facilities include refreshments, toilets and parking, and all profits support the Thompson Millennium Green Charitable Trust.

A coastal ultramarathon of about 75 miles along the Essex saltmarsh from South Woodham Ferrers to Salcott, offering two day, continuous and three person relay options with GPS tracking, regular aid stations and downloadable GPX routes.

An hourly backyard ultra at Turvey House where runners complete a 4.167-mile (6.7 km) loop each hour, with solo, pairs, 8-hour and 7-hour capped options, chip timing, aid station, first aid and prizes.

Trail event in Dunwich on 10 Oct 2026 offering 10K, half marathon, marathon and ultra on mainly flat coastal terrain. Electronic timing, a marked course and seasonal leaderboard points for finishers.

A guided 13 mile trail half marathon in the Chiltern Hills with around 300 m ascent, grouped running with qualified leaders, a halfway refreshment point and a finisher's medal.

Experience an autumn trail run through ancient woodland at the Epping Forest Wildwood Trail Series. Choose between a 10K or Half Marathon course on fully marked paths with a strong focus on sustainability.

A looped 20 mile trail event at Landguard Fort in Felixstowe on 11 October 2026. The route crosses two nature reserves, two river estuaries and the Port, includes a 6 hour cut off, and is held under UK Athletics rules.

Experience the scenic Cambridgeshire countryside with 10k and half marathon trail races around Grafham Water. These fully marked and marshalled routes offer beautiful reservoir views and a variety of local tracks.

A flat, single lap 10K on 11 October 2026 around the Dengie peninsula with coastal sea wall and countryside sections, finishing at Dengie Hundred Sports Centre. Free parking and changing facilities are available.

Experience a scenic 15 km trail run starting from Tring and traversing the Ashridge Estate. This historic race features the Ridgeway path and provides participants with the choice of a finisher t-shirt or planting a tree.

A circular 13.1 mile trail half marathon at High Lodge in Thetford Forest, featuring mixed forest and hard-packed trails, cupless water stations, manual timing, and a 3.5 hour cut-off; minimum age 17.

A **5 km** inflatable obstacle course in Norwich on 17 October 2026, presented as the 2026 edition of the Inflatable 5K. Past participants reported an enjoyable experience and some attended with family members.

A guided 10 mile trail run through canals, reservoirs and past Britain’s oldest post windmill with 170 m ascent and Chilterns views. Includes a run leader, trail technique instruction and a finisher’s medal.

An off-road *10 km* run on bridle paths and woodland tracks near Westacre, with optional obstacles, a ford crossing near the finish, a 5 km water point, refreshments and medals for all; proceeds benefit the Purfleet Trust.

A 30 mile out and back along the River Stort and Lee Navigation on mostly flat grassy and gravel trails, with checkpoints every five miles, electronic timing and a finisher medal; trophies for the top three men and women.