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 2156 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 mountain running weekend in Rhyd-Ddu, Eryri / Snowdonia on 15 August 2026 with four skyraces from 16 km to 55 km over high, technical terrain.

Join the Rusland 5, a scenic fell race across Rusland Showfield in the Lake District featuring a 4.8 mile route with 310 m of climb and shorter senior and junior options. Race entry is free; the show costs £5 and accepts entries on the day.

Trail runs of 5 km and 10 km around Fyne Court Estate in the Quantock Hills AONB with optional wooden finisher medals and a waste-reduction policy.

A Dartmoor fell race with a senior course of about 10 km and 450 m climb plus junior races for ages 6 and up. The route is marshalled for erosion control and race HQ is at the rugby club with nearby parking.

This timed event on August 15, 2026, offers a flexible, multi-lap format on a smooth riverside course in Winchester. Runners can choose their start time and distance, from a single lap to an ultra marathon, within a 7-hour window. All finis..

An evening trail event near Dorchester with 5k and 10k routes through sunflower fields and bridleways. Routes include an aid station and finishers receive medals, while the event supports a local hospital charity.

Annual mixed terrain running event in Tywyn with multiple course options including the Rotary Challenge. The race publishes past results, offers volunteer roles and merchandise, and runs alongside the Talyllyn Railway.

A 7.5 km fell race around Cwrt-y-Cadno Show fields with 264 m of climb; entry to the show is £5 and the course is partially marked with a minimum age of over 16.

A guided 10 km trail run through the Chiltern Hills finishing with a brewery tour and tasting at Tring Brewery, including a drink and on‑site pizza options.

An obstacle day at Forest Facility near Stamford with a 4 mile loop of about 60 obstacles, a 1.5 mile family wave and proceeds supporting rainforest conservation.

A 6.5 km circular hill race around Oldhamstocks with about 200 m of climb, mostly on rough track with short tarmac sections. Organised by Dunbar Running Club, registration and race numbers are issued at the village hall.

Fully off road 10 km trail race at Rock UK, Newcastleton on 15 August 2026 with forest tracks, singletrack, technical downhills and a marked marshalled course.

A long hill race on 15 August 2026 covering 26.07km with 1438m ascent across East and West Lomond. The unwaymarked route follows checkpoints, requires navigation and mandatory kit, and offers prize categories and a GPX file.

Multi-distance running event in Bath with long lit tunnels, races from 500 m to 50 km and a start and finish at Brickfields Park.

Trail runs at Lambton Estate in County Durham in August 2026 offer 5 km, 5, 10 and 15 mile routes across woodland and estate roads; canicross friendly.

A 13.6 mile trail half in the Eden Valley on 16 August 2026, largely off-road with 1330 ft of ascent and a five hour cut off.

Obstacle course races at Badminton Estate on 16 August 2026, with Sprint 5 km, Super 10 km, Beast 21 km plus a kids race and spectator options.

Off road half marathon in Henfield on 16 August 2026 with riverside and disused railway sections, flint paths and stiles; facilities include changing rooms and free parking.

A 10 km circular trail around Piethorne and Ogden reservoirs on bridleways, including an out and back to Hollingworth Lake and about 275 m of ascent.

Join the Keswick Sports Fell Race in the Lake District on Sun 16 Aug 2026 for a punchy 3 mile, 290 m climb course from Fitz Park Cricket Pavilion. Entry on the day and juniors welcome with big prizes for record breakers.

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