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 2222 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 traditional fell race from the Summit Inn in Littleborough on Halloween 2026, covering about 4.3 miles with over 800 ft of ascent. The event includes several junior categories, runs under FRA rules, and features costume prizes.

Trail races around Roadford Lake organised by Sportiva Events. Distances include 10K and half marathon with canicross options. Entries include chip timing, feed station, medal, refreshments and category prizes.

A single-loop 50K trail race on 31 October 2026 starting and finishing in Berkhamsted. Fully marked route with three aid stations, about 800 m of ascent, a nine hour time limit and a 350 runner field.

Trail Outlaws stages Dark Skies Run @ Wooler in Northumberland with fully marked trails, stocked check points and options for a Trail 10k or a Half Marathon. Entry fees shown range from £25 to £36.

Tackle the Monsal Mash in the Peak District, a challenging 9.5 km fell race with 500 m of climb over technical and fast rough terrain. Advance entry and full kit required, teams of three welcome.

Trail races from Jenkins Field, Glenridding offer 5k, 10k and 15k courses on marked, marshalled trails with scenic fell views, event village facilities and on site medical cover.

A six hour timed trail at Linacre Reservoirs where runners complete repeated 5 km laps and aim for as many laps as possible. Checkpoints offer food and drinks and every finisher receives a medal.

Experience a festive 6.66 km Halloween trail run starting and finishing at a local brewery in Chelmsford. Participants enjoy a costume focused event with medals and drinks for finishers in a social atmosphere.

A 32 km, 1800 m ascent mountain event at Pen y Fan featuring three separate ascents via six different paths, with Classic and 16 kg weighted categories. Navigation is required and control marshals monitor checkpoints.

Nighttime trail laps at Alice Holt Forest on 31 October 2026 with 5 km, 10 km and 15 km options. Fully marked and timed courses include one outpost per lap and on-site facilities such as parking, food and a finisher medal.

A scenic half marathon around Dalmeny Estate and Cammo Nature Reserve near Edinburgh, featuring wooded trails, riverside paths and modest climbs. Chip timed, medal for finishers and event proceeds support South Queensferry RNLI.

Join this flexible charity run along the River Mersey in Manchester. Complete as many 5.3km laps as you like in seven hours on a flat riverside course to support Save The Rhino.

A volunteer run full and half marathon around Gargrave with multi terrain loops, refreshment stations and a sustainable finisher medal. Proceeds support a participant attending the World Scout Jamboree in Gdansk 2027.

A night trail running event at Delamere Forest with a "Spooky Halloween" theme, reflective route marking, and distances including a 10k, a two-lap Half Marathon, and a 1k kids race with medals.

Winter Sugar Loaf is a 9.6 km fell race near Abergavenny on 31 October 2026 with 485 m of ascent; entry via Fabian4 costs £9. The route is partially marked, full WFRA kit is mandatory and limited parking is available.

An evening Halloween trail at Hogmoor with kids and adult loops: 3.3K, 6.6K (including canicross) and 10K. The sandy, muddy course features oversized statues, on-site playground, free parking and medals for finishers.

A waymarked lakeside event around Ullswater offering a *20 mile* low level route or a *24 mile* Challenge with higher fell sections, staffed checkpoints and a written route description for participants.

A timed, lap-based run along the Itchen Way in Winchester with 2.62 mile loops, a seven hour limit, flexible start times, an aid station with vegan options, and a bespoke finisher's medal.

November 2026

A coastal run on West Wittering Beach with panoramic sea and Downs views. Offers three distances 15.3k, 10k and 5k, chip timing, on-course water, finisher medals and a canicross option.

A coastal running event in Seaham with 5 km and 10 km courses starting at the Tommy statue. A one minute silence precedes each race; live chip timing and finisher medal, T shirt and snack are provided.

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