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 1359 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.

Tackle the Winter GMU, a scenic winter ultra around Bristol along the Community Forest Path with 45 mile and 30 mile options. Self navigated with checkpoint support, it rewards finishers with a technical tee and bespoke medal.

Take on the Hateful 8 Ultra Loop, a 9 mile loop at Bridgend where runners log as many laps as possible in an 8 hour challenge. Mixed terrain with steep climbs and technical forestry descents makes every loop a true test of grit and strategy..

Tackle the Scott Sports Dirty Dozen, a 12 km loop through Cannock Chase on muddy trails with tough climbs and fast descents for an off road challenge. Family friendly with a short U14 course, free camping and parking and post race photos.

Race the Highland 8 hour Challenge around Glenmore and see how many 4.366 mile loops you can complete in eight hours. Each lap climbs about 570 ft and Basecamp support with timing tags keeps you on track.

Join Thunder Races at Harrold Odell Country Park for scenic 25 km and 50 km trail runs through woodland and countryside. Marked routes, aid stations and finish medals make it a welcoming challenge for trail runners of all levels.

UTMB Index

Explore riverside paths and rocky trails at Loggerheads Country Park with 5 km, 5 km canicross and 10 km options on 7 March 2026. Varied terrain, steps and scenic views make this a fun and rewarding challenge for runners and their dogs.

Cousin Jack in St Ives Cornwall on 7 March offers rugged coastal trail races across muddy fields, rocky headlands and steep boggy paths. Choose an 18 mile Classic or 35 mile Ultra for a seaside challenge with serious elevation.

Lincoln Marabank returns to Burton Waters near Lincoln for a third year, offering a flat, traffic-free course along a canal towpath beside the Fossdyke, England’s oldest working canal. The 7-hour timed event lets runners choose how far to g..

Join the Humanity Direct Amersham Ultra on 7 March for scenic footpath and bridleway routes of 10 km, 25 km or 50 km starting at Dr Challoner's School. Run or walk to fundraise for Humanity Direct and earn a finisher medal.

Run the scenic John Muir Way 50 km trail or share the distance in a 2 x 25 km relay on 7 March 2026, starting at Port Seton and finishing at Foxlake in Dunbar. Transport from finish to start and coastal views included.

Brutal at Chawton is a raw trail run across muddy woodland, water filled craters and steep sided valleys with tight technical trails. Options for 5 km or 10 km include dedicated canicross waves so bring your dog and expect big challenges.

Run through ancient New Forest woodlands, heath and meadows with 10km, 15km and 22km route options. Dog friendly, with canicross categories, chip timing and medals.

Take on the stunning Sussex coastal trails at Eastbourne on 7 March 2026 with 10K, half marathon, marathon and ultra options that pass the Seven Sisters cliffs. Expect challenging chalk and forest terrain, great views and full event support..

UTMB Index

Explore Saddleworth reservoirs in this self guided trail race offering 25, 44 and 60 km across tracks, bogs and boulders. Enjoy post event food, showers and mountain rescue cover while using live Open Tracking for results.

Born 2B Wild III is a 5k (ish) trail race set in Hamsterley Forest, open to participants of all abilities. The route promises an immersive nature experience with mud, hills, and obstacles, and may include follow-the-trail sections. The even..

Take on the Kingdom of Northumbria Coastal Ultra, a scenic 54 km or 27 km coastal route from Bamburgh to Druridge Bay. Enjoy sea views and historic castles en route and finish with a medal and long sleeve t shirt.

Hannington Hike in Wellingborough on 8 Mar 2026 offers two waymarked walks of about 15 and 27 miles for LDWA members and guests. Enjoy checkpoints with snacks and hot drinks and a certificate and badge at the finish.

Lincoln Marabank returns to Burton Waters near Lincoln, offering a flat, traffic-free canal towpath course along the Fossdyke, England’s oldest canal in regular use. This 7-hour timed event welcomes runners of all abilities to try a new dis..

Join the Thames Meander Spring in Barnes on 08/03/2026 for scenic riverside runs along the Thames Path with 10 km, half marathon and marathon options. Flat, well marked loops with checkpoints and support make this a memorable run.

Take on the scenic Morland 'Marathon', a 30 mile trail ultra across Eden Valley and the edge of the Yorkshire Dales, passing stone circles, waterfalls and historic villages. Enjoy full tracking with a village start and finish in Morland.