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 2170 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 backyard-style endurance event at Florence Court where runners repeat a 4.17 mile loop each hour until a single runner remains; medals and event shirts for participants.

A pancake-flat *10 km* out and back along the Brecon and Monmouthshire canal between Gilwern and Llangattock, set in the Brecon Beacons National Park. Finishers receive a medal, there is a drink station at 5 km, and entries are online only.

Part of the Heart of the Glens Festival, the Lurig Challenge Run is a 3.8 mile off road race to the summit of Lurig and back; trail shoes advised, age 16 or older.

Three distances around Balloch Castle Country Park and Loch Lomond with chip timing, measured courses, finishers medals, hydration stations and free race photos. Age limits apply for 5k and 10k and on the day entries are usually available.

A new up and down hill race at the Kinross Show on 8 August 2026 with a mostly pathless 2.3 mile route, 750 ft ascent and included show access.

A canal-side lap event in Exeter on 8 August 2026 offering laps of a 5.3 km course with distances from 5 km to ultra marathon, a no medal entry option, and a 7 hour limit. Places are limited to 50 runners.

A 10 km obstacle course in the grounds of Muncaster Castle in the Lake District, featuring mud, river wades, obstacles and wooded climbs; the event includes a celebratory dinner and a weekend of camping or indoor accommodation.

The Bitton Road Runners Race - Warmley will take place in Warmley on Saturday 8 August 2026. You can run 5 kilometers.

A social 5K in Newport with music and mobile speakers, meeting and finishing at banc coffee & records; tickets are free and under 14s require a parent or guardian.

Trail marathon, half and 10k around Farndale from Hutton Le Hole with compulsory kit, downloadable maps and a 330 runner limit.

A summer 10k through country lanes around Mount Ephraim Gardens in Kent, with a separate junior run and downloadable route maps. The event raises funds for Oasis Domestic Abuse Services and includes a bespoke medal and garden entry.

The The Devil Half Marathon will take place in Blaydon on Sunday 9 August 2026. You can run 13 miles.

Experience 13 miles of scenic fells and trails starting from the historic Lowther Castle. This marked course features river crossings and 1400ft of ascent with all proceeds supporting the Eden Valley Hospice.

A flagged and marshalled BS fell race from Uppermill with a 10 km course and 400 m of climb, entry via SiEntries and a post race chip butty included in the fee.

Looped trail event at Denbies Wine Estate offering laps of a 5.3 km course within a seven hour limit, with flexible start times and multiple distance options.

Riverside races from Barnes along the Thames Path offering 10 km, half marathon and marathon courses with marked routes and checkpoint support.

Scenic races in Wye offering a multi terrain 10 km and a half marathon with a new Event HQ and chip timing.

Four hour team relay at Minley Manor, Hampshire where teams of four run repeated 4 km off road laps through woods and grassland. Male, female and mixed categories have prizes for the top three teams in each.

The Stopsley Trail Race on Sunday 9 August 2026 offers 5K, 5 miles and 10 miles on scenic undulating trails along the Bedfordshire and Hertfordshire border. Entries include chip timing, bespoke medals, free photos and participant goodies.

Choose your distance at this flexible event at Grafham Water. Run as many 5.3 km laps as you like on a flat course within a six hour window to earn a unique board game inspired medal.

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