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 2293 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.

A headtorch trail race on 6 October 2026 around Swinsty and Fewston Reservoirs with half marathon, 10 km and 5 km options. Entry is via SiEntries, limited to 150 runners and the minimum age is 16.

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

A flexible 6-hour timed run along the flat Jubilee River towpath. Run one 5.24-mile lap or see how many you can complete. The scenic route passes through countryside with views towards Windsor Castle.

A six hour trail event at Sence Valley Forestry Park on a **3.3-mile** hilly loop; participants complete as many laps as they can within the time limit. Canicross and rucking are permitted, and entrants may choose a medal or a tree-planting..

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.

Wasdale, held at Wasdale Head on 10 October 2026, is a BOFRA fell race of 2.40 miles (3.8 km) with about 700 m of climb to Kirk Fell. Mandatory taped-seam waterproofs are required for juniors and seniors.

A 57 miles point to point ultramarathon from Glasgow to Edinburgh along canals and towpaths with live GPS tracking, mandatory kit and qualifying entry criteria. The event uses enforced checkpoint and overall cut off time.

Looped trail event near Maidstone through the Kent Downs with 50 km, 25 km and 10 km options. The route is fully signed and supported with covered rest stops, medical teams, GPS tracking and weekend 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 repeat a 4.167 miles loop each hour; solo and paired entries are available, with 8 hour and 7 hour capped options and chip timing.

A circumnavigation event in South Hams, Devon offering 100 mile, 44 mile and marathon routes along the South Hams Way and coastal paths, with multiple checkpoints, GPS trackers and a paid ferry crossing.

Trail running in Dunwich on 10 October 2026 with 10K, half, marathon and ultra routes across forest, moor, grass and beach; courses are very flat by Endurancelife standards and count towards the seasonal leaderboard.

Inflatable obstacle course at Cheltenham Racecourse on 10 October 2026 with options from 2.5 km to 15 km, family rules for children, finishers medals and on-site facilities.

A 32 mile trail run in the Cambrian Mountains based at Camp Plas near Dolanog, capped at 100 runners with fully marked routes, three refuel zones and a 14 hour cut off. The weekend offers on-site camping, local food, live music and outdoor..

SkyRun the Mournes features three demanding skyrunning races in the scenic Mourne mountains. Runners can choose from distances of 50 km, 35 km, or 20 km, each with significant elevation gain. The event is scheduled for October 10th, 2026.

Test your mountain skills at the Langdale Horseshoe, a 21.1 km fell race through some of the Lake District's most challenging terrain. This classic event features over 1450 m of ascent across rocky ground and pathless fells.

A 50k mostly off-road ultramarathon on Bennachie with over 5000 ft of ascent, visiting multiple peaks and starting and finishing at the Bennachie Visitor Centre. Pre-entry only with 150 places and a 4 hour cut-off at about 19 miles.

Trail races at Box Hill in Surrey with 21K, 31K and 50K options on marked routes. GPX files, chip timing and an event village with medals and post race food.

A 55 km circular trail in the Forest of Dean that requires GPX navigation across single track, ridges and riverside sections. The event offers staffed aid stations, canicross category, support vehicles and a finishers medal.

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