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 1913 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 100 mile mountain ultramarathon following the Beacons Way National Trail through the Brecon Beacons. This self navigation race features over 6000m of ascent and passes the highest peaks in South Wales.

Discover the hidden valleys of the Yorkshire Wolds on this 54 km circular ultra marathon from Pocklington, featuring 4,100 ft of ascent and a beginner friendly 12 hour cut off.

Run along the scenic banks of the River Severn on a flat disused railway line. Choose from multiple distances ranging from 9 miles to a 37 mile ultra marathon with regular support stations.

Experience the wild beauty of the Brecon Beacons with a range of trail races from 12km to 110km. This UTMB Index event offers multi-stage and single-day options through the rugged hills of Wales.

UTMB Index

Join this flexible 7 hour time challenge at Dare Valley Country Park where you can run or walk any distance from 3km to an ultra-marathon on scenic well-maintained paths.

Alderman's Ascent is a classic 8.5 km fell race with over 400 m of ascent. It will celebrate its 10th year in 2026 as a counter for the English Fell Running Championship. The route features iconic landmarks and demanding technical descents..

Experience the Turnslack Fell Race a category BM event covering 12.9 km with 610 m of ascent. Join the fell running community in Calderbrook for this organized race featuring team prizes and post race refreshments.

Tackle a classic Lake District fell race on Saturday 25 July 2026 at Beetham Sports Field, a 9.3 km route with 283 m of climb that rewards grit with stunning views. Entry on the day, plus junior sports day races and parking on site.

Tackle classic Lake District terrain at the High Wether Howe fell race on Sat 25 Jul 2026, a 14 km route with 485 m of climb starting and finishing at Stepps Hall. Entry on the day is welcome and proceeds support the Shap community fund.

Experience a mountain run through the Sperrins reaching the summit of Mullaghcarn. This 12 km marked route features 500 meters of climbing and follows scenic trails starting from Gortin Glens Forest Park.

Experience the Somerset coastline and Exmoor on this versatile challenge featuring distance options from 10km to a 50km loop. Enjoy full support with rest stops, camping at Dunster Castle, and a festival atmosphere.

UTMB Index

An inflatable obstacle course event in Coventry on Saturday 25 July 2026 covering approximately 5 km; the 2026 edition is described as larger with more inflatable elements and participant feedback noted a positive family experience.

This six-hour timed challenge lets you choose your distance, from 5k to ultra marathon, on a lapped course along an old railway line. Pick your medal from a past collection after finishing. Drinks and snacks await at the end of each lap.

Experience trail running through the Caledonian pine forests and heather moorland of the Cairngorms National Park. This festival offers distances from 10km to 55km on the scenic Glen Tanar Estate.

UTMB Index

Test your stamina at MacTuffX Birmingham through a series of timed interval repetitions. Choose between solo, doubles, or relay categories across ten sets of 400 or 800 meters in this high energy summer event.

A timed, lap format run along The Itchen Way in Winchester with a professionally measured, permitted course. Runners may complete multiple 2.62 mile laps up to ultra distance and receive a bespoke finisher's medal and aid station provisions..

A 10K and half marathon held within the grounds of Hillsborough Castle and Gardens on 26 July 2026, supporting Action Mental Health. The multi terrain course passes Hillsborough Lake on traffic free estate paths.

Test yourself on the highest peak in South Wales with a 5 or 13 mile trail race up Pen Y Fan. This supported mountain event features chip timing, finisher medals, and routes through the scenic Brecon Beacons.

Experience a traditional moorland fell race covering 28.5 km and over 1200 meters of ascent. This high elevation route follows the Pennine Way and requires strong navigation skills in true wilderness terrain.

Experience a unique 12 mile run from the peaks of the Pentland Hills to the shores of Musselburgh beach. Navigate a mix of cross country and urban trails with scenic views across Edinburgh.