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 2291 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 time trial from Little Stretton to the Stiperstones with on the day entry and a finish to start bus. Navigational skills are required and entry fees are £8 per person with a reduced junior rate.

Ras Y Mast is a club organised running event held at Blaenwern Holiday Centre in Llanybydder, Ceredigion, featuring a mixed surface course of 6.5 miles and separate junior and senior races.

December 2026

Trail 5K and 10K races at the Tewinbury estate in Hertfordshire featuring undulating dirt, grass and woodland trails, full waymarking with marshals, a midcourse aid station and chip timing for up to 400 runners.

A 21.1 km trail race around Hughenden Manor and surrounding woodlands, with about 450 m of ascent. Mostly forest paths, marked route, aid stations at around 7, 12 and 16 km, and on site parking, toilets and a cafe.

A 10 km trail race around Hughenden Manor in the Chilterns, with hilly woodland and rural sections, waymarked routes and a water stop at 5.3 km. The event base offers parking, toilets and a cafe.

Timed Thames towpath run where participants choose lap distances on a 5.3 km out and back course and entry supports Rays of Sunshine Children's Charity.

Dash in the Dark Race 2 is a 6.4 km fell run with 229 m ascent at Llandegla Forest. A safety briefing is provided and a headtorch with at least two hours' lighting is compulsory.

A guided trail run around Box Hill in Surrey that accumulates about 1000 m of elevation over a 12.5 mile route. It features woodland, heathland and technical climbs with some scrambling and a steady group pace.

Carsington Water stages a Half Marathon and 10k on 5 December 2026, run on marked trail paths around the reservoir with marshals and kilometre markers. Entries include a themed medal, water and post race goodies.

An 80 mile December ultramarathon across Essex, Suffolk and Norfolk on December 5, 2026, with multiple checkpoints, mandatory safety kit and live tracking that includes an SOS function.

Coastal 10 Mile and 10K races run from Hengistbury Head in Bournemouth along largely flat, traffic-free seafront paths past Boscombe Pier. The event features chip timing, water stations, finisher medals, and a plastic free policy.

A handicap fell race at Bleach Green, Ennerdale on 5 December 2026, covering 4 km with 410 m of ascent and including the Crag Fell summit. Pre-entry is required and the event features a prize exchange at registration.

Join the Really Wild Boar, a classic fell race in the York Dales on Saturday 5 December 2026. Tackle 9 km with 450 m of climb, enjoy hearty post race soup and a roll at the Fat Lamb Inn and soak up wild moorland views.

A winter ultra of about 55 miles across the Cheviot hills near Ingram, Northumberland. The race is licensed and supported, requires prior ultra experience, and has a 24 hour time limit.

Fordh Sen Mighal is an 11-mile trail race from Lelant to Marazion on the Cornish coast. The point-to-point route follows a scenic European cultural path. Parking is at the finish, with a bus service available near the start.

Trail running event in Swanage on 5 December 2026 with 10K, half, marathon and ultra routes along the Jurassic Coast Path; part of the Endurancelife 2026-27 season and linked to the Season Leaderboard.

Trail races at Alyn Waters on 5 December 2026 include 5 km, 10 km and a canicross 5 km plus a free children's 1 km dash. Courses are fully marked and marshalled, chip timed and finishers receive a medal.

Three single-loop ultra races of 50k, 55 miles and 100 miles start and finish in Eastbourne, crossing the Seven Sisters and running toward Plumpton. Courses use grass trails, farm tracks and woodland paths on the South Downs.

A blindfolded navigation challenge in Kendal where participants are dropped at unknown locations and must find their own way back on foot. Options include 6 miles for non-locals, 10 miles, and 15 miles; devices are surrendered at registrati..

A lapped run at Burrs Country Park on mixed trail with a seven hour limit. The first 50 entries receive a limited edition yellow Phoenix soft toy and all participants receive a medal.

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