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 2282 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.

The Bullock Smithy Hike is a 56-mile circular ultra-hike or run organized by a local Scout group. Held over a weekend in September, it starts and finishes in Hazel Grove.

A community fell-race day in Edale on 5 September 2026 with three events: a team barrel race for teams of eight, an individual fell race on the same course, and a children's Half Pint. Proceeds support local primary schools.

Tackle a scenic 12 or 24 hour loop around Loch Morlich in Glenmore Forest, testing endurance on a supportive, compact course. Limited entries and a runners welfare hub at The Hayfield make for a friendly, focused event.

Experience the scenery of Malham Cove and Malham Tarn in this licensed trail half marathon. Enjoy a well supported route with post race meals and unique local rewards in the heart of Malham.

Trail running in the Shropshire Hills from Carding Mill Valley with Marathon, Half Marathon and 10K options across The Long Mynd and National Trust land, waymarked route, on-course aid stations and a finishers medal.

A Backyard Ultra at Hardwick Hall Estate where runners repeat a 4.16 mile loop every hour until only one remains. The route crosses estate trails, farmland and woodland with on site aid and first aid support.

An eight-hour trail challenge at Borders Forest Park where runners complete as many 4.366 mile loops as possible. Lap timing is by wristband and laps count toward half, full or ultra marathon distances.

A 7.1 km fell race on the Longshaw estate in September 2026, using the estate’s new route and 237 m of climb. Entry includes admission to Britain’s oldest sheepdog trials plus food and grandstand seating.

Experience a challenging 6 mile moorland race across the rugged terrain of Dartmoor including steep climbs and woodland trails. This historic off road event finishes with a fast downhill run at the iconic Haytor Rock.

A traditional fell race from Glenridding around Catstye Cam, Helvellyn, Grisedale Tarn and St Sunday Crag with manned checkpoints, compulsory mountain kit and limited entries. The route includes specific path requirements to protect sensiti..

Two ultra-distance events along the Saints Way Trail in Cornwall on 05 September 2026, offering 28-mile and 56-mile routes, live GPS tracking, feed stations, medals and race photography.

A muddy obstacle course in Brentwood, Essex, offering 5 km and 1.5 km routes with mud, foam and achievable obstacles. Facilities include wash-downs, changing rooms and a finisher medal.

Enjoy a scenic trail run through the Staffordshire countryside starting and finishing at a canal side pub. This charity event features a 10k route followed by evening food and music.

Trail races around Derwentwater in Keswick offering 5K, 10K and 15K routes on marked, marshalled trails with an event village, water stations and on site medical cover.

A series of runs at Westonbirt Arboretum in Sept 2026 and Feb 2027, offering distances from 1 mile to half marathon on solid forest paths, with marked courses, feed stations, event medals and age‑based entry rules.

A one-day trail event on 5 September 2026 around Barmouth and Cadair Idris offering three race distances. Routes pass coastal viewpoints, forest tracks and mountain trails with marked courses, marshals, chip timing and post race provisions.

Choose a half marathon or full marathon along a flat, scenic riverside towpath from Walton on Thames to Hampton Court and back, run in laps for easy pacing. Limited places and medals for all finishers plus a giveaway for every entrant.

A long distance 45 mile walk or run across Wales with an 18 hour time limit. The weekend event includes overnight accommodation, coach transport to the start and refreshments along the route.

Mud Tribe Sisters is a women-only obstacle event in Brentwood, Essex offering a 5 km course and a 1.5 km option for younger participants. It is non-competitive with no chip timing and includes a finisher medal and hot wash-down.

A 23 mile LDWA challenge in Malhamdale from Gargrave Village Hall on 5 September 2026, with staffed checkpoints, route refreshments and a hot meal at the finish. Entries are limited to 200 and finishers within the time limit can receive a c..

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