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 1373 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.

Born 2B Wild III is a popular trail running event held at Hamsterley Forest, offering an approximately 5k course through natural terrain featuring mud, hills, obstacles, and trails. Open to participants aged 16 and over, the race welcomes runners of all abilities and their dogs, with canine particip..

The Hannington Hike will take place in Hannington on Sunday 8 March 2026.

The Morland 'Marathon' is a 30-mile trail ultra event held in the Eden Valley, starting and finishing at Morland Village Hall near Penrith, UK. The course is predominantly off-road, featuring mixed terrain with 3,000 feet of elevation gain. It runs alongside the Pennines to the east and the Howgills..

The Tyne Bridges to Boundaries Ultra is a 34-mile running event held in Newcastle Upon Tyne, starting at The Cycle Hub on the Quayside. Inspired by the Audax cycling spirit, it offers a scenic route through industrial areas, country parks, and riverside meadows. The event emphasizes personal challen..

The Beast of the Blacks is a challenging trail running event held in the stunning Black Mountains of Wales, starting and finishing at Llanbedr Hall near Crickhowell. Scheduled for March 14, 2026, it offers three distances: 11 miles (17 km), 20 miles (32.5 km), and 40 miles (65 km), with significant..

The Ranger Ultras PB50km Ultra is a trail running event held in the Peak District, based in the historic village of Hayfield. Covering 50 kilometers, the course features a grand loop incorporating the Pennine Bridleway, Pennine Way, and Limestone Way, offering a mix of fast trails, challenging ascen..

WODland - Endurorun is an inclusive trail running event taking place in Holmfirth, Great Britain, on March 14, 2026. Participants can choose from various distances, including 5km, 10km, and 20km, or take on the unique 6-hour challenge, where individuals or teams can complete as many 5km loops as pos..

The Hundred Hills 50km is a scenic trail ultramarathon held in the Chiltern countryside, England, starting and finishing at the historic 850-year-old Stonor Park near Henley-On-Thames. The race features two distinct 25km loops, covering 31 miles with approximately 4,000 feet of elevation gain. It of..

The Brynkinalt Running Festival, held on the private Brynkinalt Estate in Wrexham, offers trail running and canicross events over approximately 5k and 10k distances. The festival welcomes participants of all ages and abilities, providing a challenging course featuring a mix of fast footpaths, grassy..

The Nant Yr Arian Silver Trail Races take place in the scenic Cambrian Mountains, offering runners a choice between a Half Marathon and a 10km trail run. The courses feature challenging and varied terrain with spectacular mountain views, suitable for both beginners and experienced trail runners. The..

The Haworth Hobble is a challenging 32-mile (51 km) fell running event organized by Keighley and Craven Athletics Club, held around the gritstone moors near Haworth, Todmorden, and Hebden Bridge in the UK. The course features approximately 4,400 feet (1,340 meters) of ascent and descent, traversing..

The Pennine Bridleway PB18km Trail Running event is an 18km trail running adventure designed for participants of all skill levels, from beginners to elite athletes. Set against the stunning backdrop of the Peak District, the course features a mix of fast trails and challenging ascents, making it an..

The Humanity Direct Amersham Ultra is a one-day endurance event held in the scenic Chiltern Hills near Amersham, Buckinghamshire. Participants can choose from three distances: 10km, 25km (half ultra), or the full 50km ultra marathon. The course starts and finishes at Dr Challoner's Grammar School an..

The Alnwick Castle Trail Runs, held in the scenic town of Alnwick, Northumberland, offer two challenging trail distances: a 10km and a half marathon. Both races start and finish outside the iconic Alnwick Castle, famous for its appearances in Harry Potter and Downton Abbey. The courses traverse beau..

The Moo-rathon, Calf and Hen K is an exciting running event hosted by Zig Zag Running at Hyde Hall Farm, Buntingford. Celebrating its third year, participants can choose from various distances, including 10k, Half Marathon, Full Marathon, and Ultra Marathon. The scenic route starts at the farm's bas..

Winter's End - 50 Mile Ultra & Marathon is a scenic trail running event held along the South Downs Way National Trail, starting near Arundel, West Sussex, and finishing in Winchester, Hampshire. The event features a 50-mile ultramarathon and two marathon options covering either the first or second h..

We Need to Talk About Chevin is a challenging fell race held in Otley, starting and finishing on Station Road with race headquarters at The Black Horse pub. Covering 14km (9 miles) with 650m (2130ft) of elevation, the course features tough climbs including the infamous Chevin Steps, Surprise View, D..

The Gratitude 25km is an exciting running event taking place in Broxbourne, UK. This race is designed for runners of all levels, promoting fitness and community spirit. Participants will enjoy a scenic route while challenging themselves to complete the 25km distance. The event emphasizes the importa..

The Hardmoors 55 is a challenging 55-mile ultramarathon held in the North York Moors, running from Guisborough to Helmsley. The course traverses the Cleveland Hills and follows 95% of the Cleveland Way National Trail, featuring over 2700 meters of ascent. Participants face potentially harsh, winter-..

The ZigZag 2026 Moo-rathon, Calf and Hen K at the Farm is a trail running event held at Hyde Hall Farm, SG9 0RU. Returning for its third year, the event offers multiple distance options including 10k, half marathon, full marathon, and ultra marathon. The course features a mix of tarmac paths, grassl..