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 1261 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.

Ranger Ultras PB137km Trail Challenge is a 137 km Pennine Bridleway ultramarathon across West and North Yorkshire moors to Cumbria, with about 3275 metres of ascent. The route blends runnable trails with technical climbs and some walker-friendly alternatives, designed for a 50-hour completion. The a..

MTC Gelert is a 47-mile ultramarathon from Barmouth to Llanidloes in mid-Wales. Day 3 of the Mount to Coast End to End Challenge and CYMRUN, the route stays largely on National Cycle Route 8, finishing with a short final stretch into Llanidloes. The event embraces a cup-free, self-supported ethos, w..

The Longhorn Trail Event at Thoresby Park, Newark, offers 5km, 10km, and half marathon trail runs suitable for various fitness levels. Set within over 1,000 acres of historic parkland featuring a 17th-century mansion, wild deer, and famous long-horned cattle, the fairly flat courses are ideal for be..

MTC Afanc is a 39.8-mile ultramarathon in mid-Wales, running from The River Wye Activity Centre in Glasbury, Powys to Travelodge Merthyr Tydfil. It’s Day 1 of the Mount to Coast End to End Challenge and Day 5 of Wales’ CYMRUN, with competitors sharing a single-day route along National Cycle Route 8,..

Burnsall 12k Trail Race is a 12-kilometre trail event held in Burnsall, North Yorkshire, with start and finish in the Riverside Car Park Field (BD23 6BU). It is the opening leg of the Due North Trail series, following the first 12k of the half marathon and including a diversion through Appletreewick..

Run Like Hell is a 13 km (8.2 miles) coastal trail race in Cornwall, run by Bys Vyken Events. The route runs along the rugged North Cornwall cliffs from The Hells Mouth Coffee House, an out-and-back multi-terrain course finishing back at the same point. Expect challenging hills, fast trail segments..

Chiltern Ridge Classic 50K is Runaway Racing’s iconic ultra through the Chiltern Hills. The next edition, 18 April 2026, runs from Berkhamsted Castle to Hampden Meadow, Wendover, covering roughly 51 km with about 996 m of ascent. Runners traverse the Ridgeway National Trail, with an undulating first..

UTMB Index

Freedom Racing - KVK - Solo is a vertical ascent running event based at Perranporth Airfield, Trevellas near St Agnes in Cornwall. The course features two laps on a purpose-built route designed to deliver 1000 meters of ascent (a Kilometer) across about 15 miles of running, with an equal 1000 meters..

Cymoedd Sir Fynwy, staged by South Wales LDWA, is held at The Girl Guide Hall, Fairfield Car Park, Abergavenny (NP7 5TR). The event offers three distances—50 miles, 30 miles and a new 20-mile route—making it LDWA's toughest mountain challenge. The route winds through the Black Mountains and the Worl..

Windsor 50 Ultra Challenge, formerly The Easter 50, is staged from Windsor Racecourse and offers 50 km, 25 km, or 10 km loop options. Participants traverse looped routes from the basecamp through Windsor Great Park with castle views, to Runnymede and along the Thames Path into surrounding countrysid..

Peak District Birthday Bash is an endurance event organized by CraggRunner, based from The Peveril Centre in Castleton, in the Peak District. It offers two distances: a Full Bash of 70 km (43.5 miles) and a Half Bash of 35 km (approximately 22.75 miles). The course takes walkers and runners on a spe..

Burnsall Trail Half is a riverside trail race organized by Due North Events, hosted at the Riverside Car Park Field in Burnsall, BD23 6BU. The route takes in several sections of the Dales Way footpath, with around 500m of ascent, and climbs rewarded with 360-degree views of the Yorkshire Dales. The..

Shropshire Way 80K Festival is a multi-route trail event run by the Shropshire Hills Discovery Centre in Craven Arms, Shropshire. On 18 April 2026, participants can choose from four routes: SW80K (50 miles, 24-hour limit), Mammothon (26 miles, 12 hours), Half Mammothon (13 miles, 6 hours) and Tusker..

Beast of the Beacons is a three-distance trail running challenge staged by Limitless Trails in the Brecon Beacons National Park, with 10, 20 and 40 mile options. The route starts near Llangynidr Village Hall in Crickhowell and climbs through forests, mountains and reservoirs, offering Beacons scener..

SilverBackTrails Goathland V Trig Ultra is a 37-mile self-navigated challenge starting and finishing at Goathland Village Hall in the North York Moors National Park. Runners or walkers may enter solo or as a pair and must plot their own route using map and compass, visiting five Triangulation Pillar..

Join Running Adventures for a spectacular guided trail run across the Malvern Hills and surrounding trails. The 18-mile route starts and finishes at North Quarry Car Park in Great Malvern, Worcestershire, and climbs to the Malvern ridge summit, visiting all the ridge summits with sweeping views. Ele..

Chester Ultra 100 is a 102-mile ultramarathon held in Chester, run by GB Ultras. The route climbs about 1590 metres and follows the Sandstone Trail, the Marches Way by the River Dee, Helsby Hill, Frodsham, Beeston Castle, Delamere Forest and the Bridgewater Canal, with 12 checkpoints along the cours..

Ultra X’s Spring Trail Series is staged on the Serpent Trail in the South Downs National Park, with all races starting and finishing at Cowdray Farm Shop near Midhurst—a spectator-friendly hub featuring an on-site expo and camping options. The event offers five distances: 12km, 25km, 50km, 50-mile,..

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Devon Coast to Coast Ultra Marathon is a multi-distance endurance event along the Two Moors Way from Wembury to Lynmouth. The flagship Ultra covers 112 miles (about 180km) with a 38-hour limit, crossing Dartmoor and Exmoor. The route follows the Erme-Plym Trail to Ivybridge before continuing along t..

MTC Y Draig Goch is a 47-mile ultramarathon, Day 6 of the Mount to Coast End to End Challenge within Ultra Running Ltd’s CYMRUN series. The route follows National Cycle Route 8 from the Travelodge in Merthyr Tydfil to Barry Island, with Cardiff reached along the way. Runners receive a bespoke finish..