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 2300 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 charity trail running festival in the Colne Valley near Huddersfield on 5 September 2026, offering distances from 10 km to 50 miles, waymarked routes, checkpoints and mandatory kit for ultra entrants.

Test your endurance at a looped off road running event featuring 6, 12, and 24 hour challenges. Enjoy a community atmosphere with on site camping and options for solo runners or relay teams on a flat farm based course.

A supported trail event along the South Downs Way from Eastbourne to Arundel with 100 km, 50 km and 25 km options, covered rest stops, GPS route marking and camping for multi day participants.

Two linked fell races on Kinder in the Peak District on 5 September 2026: Groovy (24.5 km, 1270 m, Category AL) and Groovy Baby (15.5 km, 650 m, Category BM). Single entry covers both, 200 runner limit, mandatory kit and navigation required..

An inflatable obstacle event in Edinburgh run over 2.5 kilometre laps with 2.5K to 15K options, music zones, hydration and finisher medals. Children 5 to 15 must run with a participating adult.

A five stage, 112 km endurance race around Windermere combining a lake swim, two road bike sections, a mountain summit run to Scafell Pike and a short trail run, with a reported total ascent of 6,916 ft.

A 102 mile self-navigation ultramarathon in Snowdonia Eryri National Park on 5 September 2026 with live GPS tracking, 11 checkpoints, mandatory mountain kit and strict qualifying criteria. Entry is limited to 150 places and has a 42 hour cu..

A trail running event on 5 September 2026 at Kielder Castle marking Kielder Forests centenary. Routes range from 6 km to 50 km, with forest trails, outposts for refills and onsite camping options.

A mountain navigation ultramarathon in Snowdonia on 5 September 2026, listed as 45 miles with about 2800 m ascent. The race uses live GPS tracking, has five staffed checkpoints with medical cover, and requires mandatory kit and prior mounta..

A supported off-road challenge across Dartmoor with 50 km and 30 km options, GPS tracker hire, checkpoints, and Mountain Leaders to assist with navigation and safety.

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.

A single lap off road moorland race of about 6 miles starting and finishing at Haytor Rock, with steep climbs, woodland sections and a stream crossing. Entry is limited to 350 runners and the event supports the Moor Trees charity.

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..

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