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 Tibthorpe Loop trail half marathon, a rolling circular course with about 1,200 ft of climb and on route support. Limited to 300 runners, it includes chip timing, a recycled wildflower medal and a tree planted for each finisher.

March 2026

The Weymouth Bay 10K is a scenic charity fun run held in Weymouth, Dorset, starting at Bowleaze Green near the Riviera Hotel. The course is an accurately measured out-and-back route featuring two laps, extending towards Pleasure Pier and re..

Up on the Downs, hosted by Tri-Counties Trail Running, takes place at Breamore House near Salisbury. Runners can choose from 5k, 10k (about 11.5k), or a half marathon, all starting and finishing at Breamore House. The route is mainly trail,..

The Brecon to Cardiff Classic is a 70-kilometer ultra running race following the scenic Taff Trail from Brecon in the Brecon Beacons National Park to Cardiff. Now in its 12th year, this fully marked, one-way race features diverse landscapes..

Join Scurry Around Corstorphine Hill on 1 March 2026 for scenic off road trail runs around Edinburgh with 10km and 5km options. Marked and marshalled routes, a family fun run and a race memento make it great for all ages.

Brecon to Cardiff Xtreme is a winter mountain ultramarathon, a 75-km linear challenge from Brecon to Cardiff (about 47 miles) with roughly 2,700–2,800 m of ascent, including 11 summits such as Pen y Fan, Cribyn and Fan y Big. The Taff Xtrem..

Join the Muddy Boots 10K in Ripon, a chip timed, scenic multi terrain 10 km that winds through countryside and farmland. Limited to 500 runners, it raises funds for St Wilfrid's school and includes a fun 1 km run for kids.

Join the Saint Michael's Harrogate 10K & 5K on 1 March 2026 for a scenic trail run supporting North Yorkshire Hospice Care. Limited to 1,000 places, family friendly 5K entries are free for ages 6 to 15 when accompanied by an adult.

Join the St David's Day Dragon Run at Dare Valley on 1 March 2026, a relaxed seven hour challenge where you choose how many laps to run. Expect scenic trails, medals from 3 km and tasty goody bags with vegan options.

Cloud 9 is a scenic 9 mile fell race from Congleton to Bosley Cloud and back via the Bridestones with about 1250 ft of ascent. Off road, chip timed and well marshalled, it supports the National Trust.

Run a scenic 10 km along the Thames and Jubilee River through Windsor, Dorney and Eton, finishing by the Windsor & Eton Brewery. Multi terrain course with a medal and post race pint makes this a perfect social and club outing.

Join the Pitsford Water Trail Races on 1 March 2026 for scenic, fully marshaled trail runs around Pitsford Water with 10k and half marathon options. Enjoy village views, finisher medal and free digital photos in a friendly countryside event..

Take on the rugged Imber Ultra, a 33.5 mile multi terrain trail around Salisbury Plain starting from Westbury. This charity fundraiser on 1 March 2026 follows the Imber Range Perimeter Path clockwise and welcomes adventurous trail runners.

Tackle undulating trails, muddy paths and a shallow stream crossing on an adventurous six mile route at Baggeridge Country Park. Join the Action Heart Tuff Un on 1 March 2026 to test yourself and support a West Midlands cardiac charity.

Challenge yourself on Ilkley Moor at the Ilkley Moor Fell Race on 1 March 2026. This testing 8 km fell course features steep, rocky descents and requires prior experience, with junior races held on the same day.

Enjoy scenic woodland and field trails at Stody Estate with 4 km, 8 km and 12 km options featuring chip timing and eco friendly medals. Run for a cause as funds support Break, with free parking and event photos.

Run Scrimshire's Scramble on Sunday 1 March 2026, a scenic off road 10K from North Leverton Windmill with muddy trails and wide countryside views. Small field charity event supporting the 212 year old mill where finishers get locally milled..

Culzean Castle Trail Runs return on Sunday 1 March 2026 with 5 km, 10 km and half marathon options across scenic coastal woodlands. Canicross friendly, all finishers get a medal, Wild Deer merchandise and a snack.

Run a scenic circular half marathon through Thetford Forest on varied trails with wildlife and traffic free paths. Enjoy pro photos, a finisher medal and podium prizes in this spring trail challenge.

Join a guided 10 km trail from Silent Pool, Albury along the North Downs Way through Netley Heath to Shere, with sunset or headtorch night options. Led by a qualified guide, the run features kit trials and sometimes an alcohol free beer.