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 1320 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.

Trails and Tails in Driffield is a scenic trail running event held at Field House Farm, Tibthorpe, East Yorkshire. Participants can choose between a 4-mile or 8-mile route that winds through beautiful countryside featuring runnable trails with gentle elevation and picturesque views. The event welcom..

The 2 Hillforts Hill Race is an exciting running event set to take place in 2024, starting and finishing at Plas Dolben Farm in Llangynhafal. Participants will tackle a challenging course that spans just under 9 miles, featuring a significant ascent of 2500 feet as it navigates the scenic Hillforts..

The Farnham Pilgrim Marathon is a scenic and challenging marathon event held in Farnham, Surrey, within the picturesque Surrey Hills. The course offers spectacular views and a demanding route that appeals to trail running enthusiasts. It is a bespoke event known for its beautiful multi-terrain, off-..

The Coln Valley Charity Trail Run, held in the scenic Coln River valley between Coln St Aldwyns and Bibury, offers 2km, 5km, and 10km trail distances suitable for all ages. The 2km steeplechase features grassy fields with hay bale hurdles and challenging hills, ideal for children and families. The 5..

The Burnsall Fell Race is a challenging fell running event held in Burnsall village, Wharfedale, located between Grassington and Addingham. The race covers a distance of 1.50 miles (2.40 km) with an elevation gain of 800 feet (240 meters). The course features a steady climb through fields, followed..

The Westonbirt Arboretum Summer 2025 running event takes place at the National Arboretum in Westonbirt, Tetbury, UK. Participants can choose from multiple distances including 1 mile, 5km, 10km, and a half marathon, all set on a scenic and varied course that winds through over 2,500 species of trees..

The Hackpen Hill 10k Trail Run is an annual off-road event held near Weir Farm, Broad Hinton, Swindon, Wiltshire. Celebrating its tenth year, the race features a challenging one-lap course that traverses farm tracks, fields, mud, and rolling hills alongside the historic Ridgeway trail. Suitable for..

The Clowbridge 5k is a trail running event held near the Pennine Bridleway, specifically around Clowbridge Reservoir in Burnley, UK. The course is a fast and flat 5-kilometer route with only 25 meters of elevation gain, making it suitable for runners aged 11 and above. The race consists of two laps..

The Snowdonia Mountain Skills Weekend, hosted by Running Adventures, is a challenging trail running event held in the Nantlle Valley near Snowdon, UK. Scheduled for September 12-14, 2025, it offers advanced trail runners an immersive experience in rugged mountain terrain with steep climbs, scramblin..

The Dare Valley Hateful 8 (Bwlfa Rise) is an endurance running event held at Dare Valley Country Park in Aberdare, South Wales. Participants tackle a challenging 4.8-mile loop featuring technical climbs, mountain views, and fast descents. The event lasts 8 hours, during which runners aim to complete..

THE LAP - Windermere Ultra Anticlockwise is a fully way-marked 47-mile trail ultra event held around Lake Windermere in the Lake District, Cumbria, starting from Low Cunsey Farm near Ambleside. Open to both runners and walkers aged 16 and over, the course offers a low-level, scenic route featuring r..

TrailFest - Cannock Chase Forest is a multi-distance trail running event held in the scenic Cannock Chase Forest, Staffordshire. It offers four race distances: 10K, half marathon, marathon, and 50K, catering to all levels from beginners to experienced ultra runners. The course is challenging and hil..

The Heart of Granite is a challenging 20-mile (32 km) circular race held in the Galloway Mountains, starting and finishing at Caldons Old Campsite in Glen Trool, Newton Stewart. Featuring 1850 meters of ascent, the course traverses notable landmarks such as Curleywee, Rig of Jarkness, the Murder Hol..

The Isle of Wight Fell Race Series 2025 is a challenging fell running championship held over two days in September on the Isle of Wight, based at St Catherine’s School in Ventnor. The series features three races of varying distances and ascents: the 3.8km St Boniface Fell, the 12km Ventnor Horseshoe..

Thetford Back Yard Ultra is a competitive running event held at High Lodge in Thetford Forest, Suffolk. Participants run a 4.167-mile loop every hour on the hour, continuing until only one runner remains able to complete the loop within the one-hour time limit. This late summer event features chip t..

The Rasselbock Backyard Ultra at Hardwick Hall in Derbyshire is a unique endurance running event set on the scenic grounds and farmlands of the historic Hardwick Hall Estate. Participants run a 4.16-mile loop every hour, starting each lap on the hour, continuing until only one runner remains. The co..

Leeds Country Way In A Day is a challenging 105-kilometre ultra trail race circling the city of Leeds via local footpaths, bridleways, and minor lanes. The route, mostly rural despite its proximity to the city center, offers scenic views of West and North Yorkshire countryside and passes through tow..

The Sourton Tors Fell Race is a traditional off-road fell running event held near Sourton Village Hall on Dartmoor, close to Okehampton. The senior race covers approximately 5 kilometers with a 276-meter ascent, featuring a challenging moorland course that includes compulsory checkpoints such as the..

The Edale Mountain Rescue Team hosts the Nine Edges Event, a challenging 20-mile off-road route in the Peak District National Park. The course features approximately 900 meters of ascent, traversing high moorland and gritstone edges from Fairholmes to the Robin Hood Pub near Birchen Edge. Participan..

Ultra X England is a multi-day ultramarathon trail running event held annually in September in the Peak District National Park, based in the picturesque village of Edale. The event offers six race distances ranging from 12km to 110km, including a two-day 110km option. The courses traverse beautiful..

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