Trail Running calendar near Welwyn 2026-2027

Experience a scenic trail run through the Huntingdonshire countryside with the Ouse Valley Way Marathon and Half Marathon. These flat point to point races follow the river along a mix of grass gravel and tarmac paths.

Join this flexible timed event along the flat River Thames towpath in Walton on Thames. Complete as many laps as you like over seven hours to achieve distances from 5km to an ultra marathon.

A looped trail event based at Henley Showground on 26 September 2026 offering 50 km, 25 km and 10 km routes with rest stops, medical support, camping and GPS tracking.

Experience an obstacle course weekend at Pippingford Park featuring distances from 5k to 50k. Run through rolling hills and rugged trails as you tackle the British OCR Ultra Championship or complete your Trifecta challenge.

The Hard Yard is a 10 mile trail race at Chilton Manor Farm on 26 September 2026, using private trails and a one mile yew tree lined finishing avenue. The course gains about 240 m and includes water stations, medics and event photography.

The Endless Garden is a last-person-standing Backyard Ultra marathon. Runners tackle a 4.167-mile loop every hour from a base at The Waggoners Pub, where spectators and crews are welcome. The event includes drink vouchers and a special pub..

Experience an autumn run through scenic pumpkin fields and farm tracks in Colchester. With 10k, 5k, and 1k distances, this flat off road event features chip timing and a family friendly event village.

Experience a flexible trail event at Billingford Lakes with a 5.3 km lap course through grasslands and rugged trails. Choose between 4 and 6 hour sessions to complete your preferred distance and earn your bespoke finisher medal.

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.

Ten mile trail race at Eridge Park on 27 September 2026 featuring steep climbs, muddy and technical single track, GPX course maps, finisher memento, trophies and a free pint and cake for finishers.

Enjoy a flat riverside run along the Thames with a chocolate themed aid station. Choose your own distance from 5km to ultra marathon within a flexible seven hour time limit.

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.

MacTuffX London offers a unique interval running competition in September 2026. Participants can compete in solo doubles or relay categories over repeated 400 meter or 800 meter distances in Barking.

The Kingfisher Challenge is a flexible six-hour trail run in the scenic Coombe Abbey Park. Run as many 3.3-mile laps as you like on paths through woodland and grassland. Choose your own distance and finish with a medal or a tree-planting to..

A single-loop 100 mile trail from Plumpton Racecourse in the South Downs National Park, featuring over 12,000 ft of elevation, 12 aid stations, a 34 hour cutoff and free onsite camping. The race forms part of the South Downs Triple Crown.

Join a 30 mile guided group run exploring the scenic Surrey Hills and Box Hill. This event offers professional coaching on the trails and is an ideal entry point for those new to ultra running.

An inflatable obstacle 5 km at Kempton Park in South London on 3 October 2026. The 2026 edition is presented as an Inflatable 5K course and participant feedback notes positive family experiences and a five-star rating.

A 50 km point-to-point ultra from Moors Valley Country Park to Hengistbury Head with mixed forest and seafront terrain, GPS route files, four feed stations, tracking options and on-course medical support.

Experience an ultra distance eco trail through the ancient woodlands of London. This event takes runners on a 50 km journey starting from Capel Road into the natural paths of Epping Forest.