Trail Running Calendar United Kingdom 2026-2027

Welcome to the most comprehensive guide to trail races in the UK for 2026-2027! Our curated list features an impressive 2114 trail runs across the enchanting landscapes of Scotland, and Wales. From the iconic trails of London's green outskirts to the rugged terrains near Birmingham, from Glasgow's scenic paths to Liverpool's historic routes, we've got every trail enthusiast covered.

Whether you're a seasoned trail runner looking for your next challenge or a newbie eager to explore the world of off-road running, our calendar is your one-stop solution. Dive deep into the details by searching for a specific location or simply browse through to discover new trail runs. Looking for all running events? Check out the complete Running Calendar United Kingdom on running.life.

Trail event at Ashton Court Estate offering 6 km and 10 km trail or ruck options with GORUCK Rucker 4.0 and competitive or open categories.

Coastal 18 and 26 mile routes start and finish at Walberswick Village Hall, skirting Minsmere and Dunwich with staffed checkpoints, food, a finish meal and finisher certificates included.

A guided 16k trail run at High Lodge in Thetford Forest led at a conversational pace with route guidance, trail running tips and an optional cool down. Terrain is mostly flat with a couple of small hills and parking costs £3.

Trail 10K from Mount Hawke cricket club on coastal footpaths around Chapel Porth and Porthtowan with a loop by Tywarnhayle mine; places limited to 230 runners.

A roughly 10km trail race in the Derwent Valley with a fully marked and marshalled course through woodland, rocky sections and a stream crossing; entrants must be 18 or over.

Headtorch trail around Swinsty and Fewston Reservoirs with half marathon, 10 km and 5 km options, on-course water and finisher medals.

The Darlington Trail Night Run will take place in Darlington on Wednesday 7 October 2026.

The Phoenix Running - Slough will take place in Slough on Thursday 8 October 2026. You can run 5 miles.

A six hour multi-lap off road event at Sence Valley Forest Park where participants complete 3.3 mile laps at their own pace, with canicross allowed and options for a medal or tree token.

A 10k evening trail race set entirely within the Kiplin Hall estate, with a marked course through formal gardens, woodland, grassland and lakeside paths. Finishers receive a hot drink and cake and there are trophies for top finishers.

A trail event at Cuerden Valley Park on Friday 9 October 2026 where runners complete repeated 5k laps within a six hour limit. Finishers receive an official time and a bespoke medal.

A lap based Friday timed run on the Thames towpath offering distances from a single 3.28 mile lap up to ultra distances, with the ten pound charity entry supporting Rays of Sunshine and a special double sided medal.

A fell race at Wasdale Head on 10 October 2026 that climbs to Kirk Fell over 2.4 miles with about 700 m ascent. Age groups run from Under 12 to Seniors and specific waterproof kit is compulsory.

A 57 miles ultramarathon from Glasgow to Edinburgh along canals and towpaths, with GPS tracking, mandatory kit requirements and a 16 hour cut off. The event has 750 places and is scheduled for October 2026 and October 2027.

Looped trail event near Maidstone offering 50 km, 25 km and 10 km options. The route follows the North Downs Way and River Medway and includes covered rest stops, GPS tracking and camping at basecamp.

A 70 km circular mixed terrain ultra in and around historic Stirling, offered as solo entries or team relays of three or six, with aid stations, GPS live tracking and an overall 14 hour cut off.

A backyard ultra at Turvey House where runners complete a 4.167 mile (6.7 km) loop each hour; failing to start a loop on the hour means elimination. Entries include solo, paired teams alternating loops, and an 8 hour day cap.

The The South Hams Ultra will take place in Kingsbridge on Saturday 10 October 2026. You can run between 26 and 100 miles.

Trail event in Dunwich on 10 October 2026 offering 10K, half marathon, marathon and ultra across flat coastal terrain. Courses are fully marked, electronically timed and count towards the Endurancelife seasonal leaderboard.

An inflatable obstacle course event in Cheltenham on 10 October 2026 offering 2.5k to 15k distances, on course music, a finisher's medal and family friendly entry rules.

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