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 1339 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.

The Surrey Slog, also known as the Holmbury Hill Challenge, is a challenging trail running event held in the scenic Surrey Hills near Peaslake. The race features a hilly, undulating multi-loop cross-country course primarily on tracks around Holmbury Hill, with well-marked routes and marshalled key p..

The Gecko Gathering - Harlyn 2025 is a coastal running event held in Cornwall, Great Britain, featuring two distances: a 10.5 km and a half marathon (21 km). The half marathon route runs from Harlyn Beach to Padstow and back, while the 10.5 km race goes from Padstow to Harlyn, both following the sce..

The Ashdown Forest 10 & 5 Mile Series is an eco-friendly trail running event held at Pippingford Park Manor in East Sussex. This two-race series offers runners the choice of 10-mile or 5-mile distances through stunning, undulating forest trails with picturesque scenery. The event emphasizes sustaina..

The Borrowdale 21k Trail Race, organized by Fellside Events, is a scenic trail running event held in the Borrowdale Valley near Keswick, UK. Covering 21 kilometers with 550 meters of ascent, the course offers a varied terrain including lakeshore trails, woodland paths, rocky singletracks, and bridle..

The Borrowdale Trail Half Marathon is a scenic 21-kilometre trail race held in Keswick, Cumbria, along the shores of Derwentwater and surrounding fells. The hilly course offers varied terrain and stunning views, making it ideal for trail running enthusiasts. The route is well-marked, requiring no na..

The Cracoe Fell Races, held near Cracoe on the B6265 between Skipton and Grassington, is a challenging fell running event organized by the British Open Fell Runners Association (BOFRA). The race covers 2.6 miles (4.2 km) with a climb of 900 feet (274 meters), starting with a gentle run through field..

RunAble presents the 10 & 3-Mile Trail Races, set in the stunning landscapes of Yorkshire. This exciting event invites participants to challenge themselves on a scenic 10-mile course, perfect for experienced runners looking to push their limits. For those new to trail running or preferring a shorter..

The Hillfort Hustle is a scenic trail running event held in Aymestrey, Herefordshire, featuring 10-mile and 5-mile race options. Both courses include a challenging climb to the Iron Age Hillfort at Croft Ambrey, offering stunning views of the North Herefordshire countryside. The route passes through..

BigHeat Trails (FIRE) is the third event in the Classic Element Trail Series, held at Rother College in Midhurst, Surrey. Inspired by the element of fire, this trail running event offers two challenging single-lap distances: a marathon and a 16-mile run. The course features winding dusty tracks, sun..

Conquer Cannock is a running event held at Cannock Chase, featuring multiple race distances including 5k, 10k, 16k, and a mini-miler for children aged 3 and above. The course offers a challenging mix of terrain with hills, loose surfaces, and exposed tree roots, set amidst the scenic forest trails...

The Winwick Hall Trail Races, held at the scenic Winwick Hall Estate in Northamptonshire, offer fully marked and marshaled trail running events including 10k and 5k distances, plus a 2k children's fun run for ages 4-12. The courses feature a mix of grassland, country paths, and hard-packed trails wi..

The Valley Park Tour of the Woods is a 10 km trail race held in the scenic Valley Park Woodlands in Chandler's Ford, Hampshire. Organized by Chandler's Ford Swifts Running Club, the race is uniquely divided into five stages ranging from 500 meters to 3 km, with recovery breaks between each that do n..

The Coniston Country Fair will take place in Cumbria on Sunday 20 July 2025.

The Wye Valley Tunnel Run is a scenic running event held at Wyedean School in Sedbury, UK, featuring 10km, half marathon, and marathon distances. The courses primarily follow the flat, shaded Wye Valley Greenway, an old railway line, including a unique 1.1km stretch through the refurbished and lit T..

The Pete Bland Kentmere Horseshoe is a challenging medium-distance Lakeland fell race held in the Lake District, England. Covering 12.3 miles (19.8 km) with 3,300 feet (1,006 m) of ascent, the race follows a clockwise horseshoe route around the Kentmere Valley, including notable peaks such as Ill Be..

The Fell Em Doon 5 Miler is a midweek trail running event held in Ashington Community Woods, Northumberland. The race features a flat, wide, two-lap course covering 5 miles on good trail paths, making it accessible and fast-paced. Organized by Ashington Hirst Running Club, the event welcomes runners..

The Post Hill Relay is a 3-person team relay race held in Post Hill Woods, Pudsey, West Yorkshire. Participants each run a 2.5-mile loop along scenic trail paths, avoiding the steep hill reserved for a later challenge event. The race fosters a friendly and competitive atmosphere with categories for..

The Paddy Buckley Round is a challenging, professionally guided running event held in Northern Snowdonia, Wales. Covering a loop of just over 100 km with approximately 9,000 meters of ascent and descent, it includes 47 mountain tops across major ranges such as Moelwyn and Nantle Ridge. The event is..

The Urban Night Series - Inter Club Champs 2025 is a competitive team-based urban orienteering event held in Halifax, starting from Dukes Bar on Market Street. Teams of two race to visit as many of the 30 checkpoints as possible within a two-hour time limit, using maps provided at the start. The eve..

The Wharncliffe Woods 10km Trail is a fully inclusive trail running event held at Grenoside Woods Car Park, Woodhead Road, Grenoside, UK. The race features an undulating 10km course that is traffic-free and offers stunning scenery throughout. Suitable for all runners, the course is well marshalled a..