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 2287 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 circular 30 km fell race around Belper with chip timing and full route signage. The course uses footpaths, bridleways, public roads and parts of the Midshires Way and is open to walkers and runners.

Combined half and full marathons run through Richmond Park on 23 August 2026, using a lap route from Sheen Gate that follows the Tamsin Trail with aid stations and finishers receiving a medal, mug and buff.

A point to point mixed terrain 15 Mile and Marathon following the Old Way from Mayflower Park, featuring coastal landmarks and a short boat crossing of the Hamble River. Finishes are at Titchfield Abbey and Boundary Oak School.

A single-lap, 21 kilometre trail race around Derwentwater and nearby fells in Keswick, with marked route, bespoke medal, event photos, age limit 17+, and prizes for top finishers and age-group winners.

A single lap 44 kilometre trail race around Scafell Pike near Keswick on 23 August 2026, with an unmarked mountain section where navigation is essential and participants should be prepared with suitable clothing and footwear.

A South Downs trail running event based at Lancing College offering 5K, 10K, Marathon and 50K routes across grassy trails, chalk paths and ridgelines, with marked, chip-timed courses and aid stations.

A children's fun run organised by Afan Valley Swimming Club on 23 August, covering approximately 1 mile of mixed grass and tarmac with uphill and downhill sections. Entry includes a finishers' medal and a bag of sweets.

A five mile trail race at Pennington Flash on 23 August 2026, organised by Leigh Harriers AC at Leigh Sports Village. The event is licenced by TRA and offers affiliated and unaffiliated entry categories with published prices.

A trail running festival at Tulliallan on 23 Aug 2026 with half marathon, 10 km, 5 km and a 1.5 km family run, clearly marked off-road routes and proceeds from the fun run supporting local charities.

Experience a scenic run through the historic Richmond Park on this UK Athletics Affiliated course. Choose between a half or full marathon distance following the trails and private roads of London’s largest Royal Park.

A trail run entirely within Richmond Park offering half marathon and marathon distances, a route past the White House and park lakes, and on-course drinks and feed stations.

A scenic trail race of about 10K around Brodick on the Isle of Arran with roughly 600 feet of ascent. The route uses footpaths and forestry roads, starts at Ormidale Sports Pavilion, and has an entry limit of 100 runners.

A self navigation trail event along the Colne Valley Path with marathon and half marathon distances, stocked aid stations, cupless arrangements, a pre-race shuttle and optional medal choices.

Summer community races of 5 km and 10 km from Whitwell and Reepham Railway Station along Marriott's Way, with medals for finishers and fundraising for Keeping Abreast Breast Cancer Reconstruction Support Charity. The races are not timed.

MacTuffX Portsmouth on 23 August 2026 at the Mountbatten Centre combines ten Xercises with repeated running intervals. Multiple entry formats include solo, doubles and relay with standard and LITE weight divisions.

A 5.7 mile trail race in Cardenden Woods on 23 August 2026 marking the 200th anniversary of Scotland’s last pistol duel, with mainly off-road terrain, limited places and on-site prize giving at the Corrie Centre.

A roughly 7-mile undulating multi-terrain trail race around Adel Woods, Scotland Woods and Meanwood Park in Leeds on 23 August 2026, organised by Valley Striders AC with race HQ at Old Leo's and an entry limit of 450.

A ten kilometre trail run on 23 August 2026 using the original predominately anti clockwise route, with a limited edition event T shirt included and results posted within 48 hours.

A 10 mile trail race through Radnor forest in Mid Wales on 23 August 2026, held in aid of the Special Care Baby Unit in Hereford. The route reaches Black Mixen at 2130 ft and includes forestry roads, moorland and tree covered single track.

A 21k trail run around Borrowdale based in Keswick, featuring lakeshore trails, woodland singletrack and 550 m of ascent. The course is fully marked, chip timed and supported with hydration and medical cover.

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