Trail Running Calendar United Kingdom 2025-2026

Welcome to the most comprehensive guide to trail races in the UK for 2025-2026! Our curated list features an impressive 1279 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.

Endurancelife Northumberland invites runners to the Northumberland coast, centered on Bamburgh. The event offers 10K, half marathon, marathon and ultra distances across a single, linear coastal course noted for sand and dunes and elevation gains (190 ft for 10K up to 1,631 ft for the Ultra). The rou..

Cracoe Cracker Challenge 2026 is a long-distance event in Cracoe, North Yorkshire. Participants can choose between a 25-mile or 12-mile route through the Yorkshire Dales, open to walkers and runners, starting from Cracoe Village Hall. Run by LDWA – West Yorkshire, the course features the South loop..

Climb South West runs the Dartmoor Winter Traverse, a fully supported winter crossing of Dartmoor in February. The event offers a 50 km South-to-North route and a 30 km Princetown-to-Meldon option, open to runners and walkers. The route traverses remote moorland, passing Red Lake and the sources of..

The Derwent Reservoir 5 & 10 Milers is a popular winter running event held at the scenic Derwent Reservoir on the Durham and Northumberland border. Participants can choose between a 5-mile or 10-mile course that loops around the reservoir, featuring a mix of firm trails, footpaths, grass, and woodla..

The Ironwood Challenge, organized by Nailsea Running Club, is a trail race near Long Ashton, North Somerset. The six-mile course runs through woodland, fields and forest, with sections that are often muddy. It is fully marked and marshalled, and chip timing is included for the first year.Off-road sh..

Hadleigh Legacy 10k is an award-winning, sell-out trail running event at Hadleigh Country Park in Essex. The 10-kilometre single-loop course blends footpaths, fields and off-road trails with an undulating, hilly profile and plenty of mud, set against views of Hadleigh Castle. The GPS-marked, multi-t..

Winter Trail Run is the fourth edition of the Trail Run at Gatton Park, near Redhill/Reigate, RH2 0TW. The event offers a 5K multi-terrain loop around the scenic Gatton Park and you can choose to run one or two loops for 5K or 10K. The atmosphere is friendly and social, with a dedicated Canicross ev..

Zig Zag’s Thetford Festival of Running takes place at High Lodge in Thetford Forest, Brandon (IP27 0AF). Runners choose from 5k, 10k, half marathon, full marathon or ultra, all on a largely flat loop through the forest with a small section of trails and woodland (final route to be confirmed). The ev..

North Downs Ridge 50k Ultra, organized by Freedom Racing, runs along the North Downs Way from Denbies Wine Estate near Dorking to Guildford and back, incorporating a Surrey Wildlife Trust reserve at Norbury Park. The 50-kilometer trail ultramarathon features about 2,986 feet of ascent, fully signed..

SilverBackTrails Lilla’s Revenge is a 10-mile trail run in the North York Moors National Park. Starts at the Lay-by on the A171 above Jugger Howe (NZ 945002). The route uses part of the Lykewake Walk long-distance path, visiting Lilla Howe with Lilla Cross—the Moors’ oldest cross dating to the 7th c..

Two Tunnels Races in Bath, UK, organized by Relish The Great Outdoors, offer a unique underground running experience alongside city scenery. The courses pass through the Devonshire Tunnel (408m) and the longer Combe Down Tunnel (1672m), both well-lit and surfaced as a shared-use path—the longest und..

BigMud Trails (EARTH) is the first event in the Classic Element Trail Series, celebrating the element of Earth. Set in the scenic Meon Valley at Queen Elizabeth Country Park, participants can choose between a 16-mile or marathon distance, both featuring challenging single-lap courses with significan..

St Peters Way Ultra is a 42-mile trail ultramarathon that runs along the St Peter’s Way from Chipping Ongar to the Chapel of St Peter-on-the-Wall at Bradwell-on-Sea, Essex. The route follows an ancient pilgrimage path through historic countryside, with sections of muddy trails, fields, and bridleway..

Thursley Common 10km is an evening trail run hosted by Running Adventures in Thursley, Surrey. The 10km route weaves through the Thursley National Nature Reserve, a 325-hectare expanse of heathland, peat bogs, pine and deciduous woodlands, and habitats for dragonflies and a variety of birds. This is..

The Badger Challenge is a six-hour trail event held on 27 February 2026 at Beacon Hill Country Park, Lower Car Park, Leicestershire (LE12 8TA). Competitors complete repeated laps of a 3.3 mile off-road loop within a six-hour time limit; entrants choose how many laps to attempt. Entry fees are tiere..

South Downs Way Ultra Run is a 30-mile trail event based at Harting Down in West Sussex. The route showcases the South Downs Way and surrounding areas, visiting Beacon Hill, Cocking Down and Kingley Vale, with ancient woodlands, nature reserves and links to the Sussex Border Path, Shipwrights Way an..

South Pennine 24 is a 24-mile challenge hosted by the LDWA South Pennine group, based at Dovestone Sailing Club near Greenfield in the Dark Peak. The route climbs about 3900 ft, traversing the South Pennine Moors from wild moorland to well-graded footpaths and bridleways, offering panoramic views al..

Hameldown Hammer is a Dartmoor trail running event based in Widecombe-in-the-Moor, offering the Hammer Half, the Hameldown 7EVEN (about 8 miles), and a new Ultra Hammer. The 10th anniversary edition marks the inaugural Ultra. The Half is described as Dartmoor’s biggest trail half marathon with over..

Chester Ultra 50 is a 50-mile trail ultramarathon in Cheshire, with start and finish at Ellesmere Port Sports Village. The 2026 event marks its 10th anniversary and features 849m of ascent along the North Cheshire Way and the Sandstone Trail, passing Helsby Hill, Delamere Forest and Frodsham. The we..

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The Tibthorpe Loop is Ultra Trails’ trail half-marathon set in the Yorkshire Wolds. The start and finish are at Field House Camping & Coffee Barn near Tibthorpe (Driffield). The easy-to-navigate, undulating but not technical course covers roughly 13 miles and carries a generous 5-hour cut-off, makin..