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 1420 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 Orton Fell Race is a challenging running event taking place at Orton C of E Primary School. Scheduled for September 27, 2025, the race features a distance of 10 km (6.2 miles) with a climb of 258 meters (846 feet), categorized as a BS race. Participants must be at least 16 years old, and entry f..

The Dark Downs 50k is an exciting night running event held on the scenic South Downs, featuring both a 50k race and a Half Marathon. Participants will experience the unique atmosphere of running at dusk and into the night, with the rolling hills and runnable trails providing an ideal setting. The ev..

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The Maverick Original Mendips 2025 is a thrilling trail running event set in the picturesque Mendips Hills. Participants can choose from three routes: Long (22 km), Middle (13 km), and Short (7 km), each offering stunning views and diverse terrain, including climbs and descents. The race showcases t..

The Chiltern 50 Ultra Challenge is a scenic endurance event set in the picturesque Chilterns, offering options for 50 km, 25 km, and 10 km routes. Participants can walk, jog, or run through historic trails, rolling hills, and nature reserves, with full support including rest stops, medical aid, and..

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The Two Breweries Hill Race is an annual running event held in the scenic Scottish Borders, covering a challenging 30 km (18 miles) route with an ascent of 1500m (4900ft). Starting at Traquair House and finishing at Broughton Ales, the race celebrates local breweries and the spirit of hill running...

Rombald's Romp Fell Race, organized by North Leeds Fell Runners, is a challenging 13km (8.1 miles) fell race with 370m (1214ft) of ascent, classified as BM (a bit hilly, medium distance). The race takes place near Ilkley, starting and finishing on Keighley Road, featuring a multi-terrain course that..

The Fortitude Ultra - Denbies is an endurance running event held at the picturesque Denbies Wine Estate in Dorking, Surrey. Participants face the challenge of completing 10 laps of varying distances (approximately 3, 4, or 5 miles) within a 10-hour timeframe. Runners can adjust their chosen distance..

The Punk Panther Yorkshire Reservoir Dogs is a scenic trail running event held near Otley, Yorkshire, featuring routes that pass seven picturesque reservoirs including Lindley Wood, Swinsty, Fewston, and Thruscross. Designed by the Punk Panther team, the event offers distances from a half marathon (..

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Thunder Races offers trail running events in Bedfordshire, featuring multiple distances including 10km, 25km, and 50km to suit all skill levels. The races take place in scenic locations such as Harrold-Odell Country Park, showcasing a mix of runnable terrain with diverse scenery including forests, f..

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The Eridge Park 10 Trail Challenge is a 10-mile off-road running event held at Eridge Green, Tunbridge Wells, Kent. Celebrating its 25th anniversary in 2025, the race is known for its challenging trail featuring steep, narrow climbs, abundant mud, and stunning scenic views. The course is traffic-fre..

The 2025 Grantchester Charity Runs are volunteer-organized events supporting Maggie’s Centre Cambridge and the Addenbrooke’s Charitable Trust. Taking place on September 28th, the runs include a 10k and a 3k course through scenic farmland near Grantchester, Cambridge, with flat, mixed terrain and no..

Wild Deer Scottish Trail Runs 2025 at Dalkeith Country Park offers a variety of trail running distances, including 5km, 10km, half marathon, marathon, and ultra-distance (32.5 miles). The event takes place in a historic 1000-acre estate near Edinburgh, featuring mixed terrain such as trails, paths,..

The Black Nore 10km, organized by Portishead Running Club, is set to take place on September 28, 2025. This mixed terrain race begins at the Portishead Open Air Pool and features a scenic route along the Bristol Channel, passing the iconic Black Nore Lighthouse and through the National Trust's Redcl..

The Stuart Learmouth Undulator Fell Race, organized by Wirksworth Running Club, is a classic 13.7 km (8.5 miles) fell race in the Peak District featuring 457 meters (1500 feet) of ascent. Starting in Stoney Wood near Wirksworth, the challenging course combines steep climbs, rocky sections, trails, l..

The Pumpkin Run Colchester, held at Foxes Farm, offers a festive autumnal running event with distances of 10K, 5K, and a family-friendly 1K suitable for all ages and abilities. The course loops around fields, a pumpkin patch, and a corn maze on mostly flat, traffic-free tracks, ideal for achieving a..

The North Downs Way Ultra Run is a 30-mile trail run starting and finishing at St Martha's Hill in Guildford, Surrey. It showcases some of the best sections of the North Downs Way and surrounding Surrey Hills, including the famous Box Hill and Denbies Wine Estate. Designed as an ideal introduction t..

The Delamere Forest Wildwood Trail Series features scenic trail runs, including a Half Marathon and 10K, set in the picturesque Delamere Forest in Cheshire. Scheduled for September 28, 2025, the event offers challenging courses through dense woodlands, with technical trails, steep climbs, and muddy..

The Harbour Wallbanger is an exciting running event scheduled for 2025, starting on the beach at Broadstairs during low tide and extending to Ramsgate, where participants will "bang the Harbour Wall" before returning. This unique coastal route is designed for both beginners and experienced runners,..

Steeple Barton Chase is an annual fun run held at Barton Abbey in Oxfordshire, designed to raise funds for the Steeple Barton church. The event features a variety of running options, including a main 10K run, a 5K run for those seeking a shorter challenge, and a 1K Family Fun Run that encourages par..

Race on the Chase is an annual trail running event held at Salisbury Racecourse, just 3 miles from Salisbury city centre. Celebrating its seventh anniversary in 2025, the race offers marathon, half marathon, and 10K distances, all featuring undulating downland terrain with historic ancient tracks, g..