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 1338 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.

Take on the Chevin Chase on Boxing Day: a challenging, hilly mixed terrain 7 mile circuit around Otley Chevin. Now in its 46th year, this festive race raises funds for local charities.

Join the Boxing Day Boomerang at Dundonald Castle for 5k and 10k road and trail routes supporting Ayrshire Sportsability. Enjoy a festive post run atmosphere with the castle tearoom open, raffle prizes and a friendly crowd.

Take on a scenic 10k through the historic Rauceby Estate on 27 December 2025, winding past Rauceby Hall and parkland. Enjoy a festive post Christmas challenge on a family owned country estate with wide paths and countryside views.

Join the Castlewellan Christmas Cracker on 27 December 2025 for an 8.5 miles race for teams of two through roads, fields and forest tracks around Castlewellan. Finish together for medals and prizes including fancy dress and note entries are..

Tackle the Midwinter Mortimer Trail on 27 December 2025, a scenic mixed surface challenge from Ludlow Castle to Kington through forests, limestone tops and ridges. Choose the 30 mile Ultra or the Croft 15 for a memorable winter adventure.

Experience the Deadwater Trail Run in Kielder Forest on 27 December 2025: a 15 km night trail that climbs to the summit of Deadwater Fell and returns via fast forest and mountain bike trails. First race of the Shadowlands series.

Take on the classic Wansfell scramble in Ambleside on 27 December, a short but steep climb to a rocky summit with spectacular views and a lively finish at Force Cafe. This is a winter fell race so full FRA kit will be checked at registratio..

Join the Layer Twixmas Trail on 28 December for a self guided 5 to 6 mile trail run around Layer de la Haye. Enjoy a Twix, hot drink and cake, optional festive fancy dress with a cash prize and dog friendly fun.

Tackle an undulating winter cross country on Sunday 28 December 2025 at Acresford Sand and Gravel in Huncote, featuring Croft Hill and a stream for a scenic but testing 10K. Junior one and two lap races share the same start and finish.

Take on a scenic 10 mile cross country through Hainault Forest with Ilford Athletic Club, three undulating laps across tracks and grass. Friendly club atmosphere, limited entries and post race prizes make it a rewarding winter challenge.

Tackle the rugged Tour de Humbleton Trail Race, a 5 mile circular route from the Cheviot Centre that climbs 800 ft around Humbleton Hill. Enjoy marked trails, scenic views and marshalled support for a brisk winter fell challenge.

Join the Westfield 7.5 km trail race on Sunday 28 December 2025 for a scenic loop past Farbanks Henge and village hamlets. Limited to 50 runners, with marshalled off road course, post race tea and cake and prizes for top male and female.

The Christmas Charity Run at Rathfinny The event takes place on 28 December 2025 at Rathfinny Wine Estate, The Tasting Room, Alfriston, Polegate, BN26 5TU. The run is limited to 75 places and is open to local runners only. Part of the entry..

Winter X near Meonstoke on 28 Dec offers 10, 30, 50 and 70 km trail routes along the South Downs Way. Enjoy marked courses, checkpoints, chip timing, an event tee and post run food.

Join the Darklink Lightlink 10 km in Shoreham on 29 December for a flat headtorch run along the Downslink to Bramber and back. Mandatory headtorches, chip timing and a finisher medal add post holiday sparkle.

Take on Plain Crazy Winter, a 12.5 mile road and trail challenge on 29 December with hilly, scenic and wintry terrain and a bespoke finisher medal. The race supports the Royal British Legion and entries are limited, so book early.

Wormstones Fell Race takes place in Glossop, with the start and finish at The Beehive on Hague Street (SK13 8NR). The page positions the event as a fell race with a route that leads "to the top," though distance details aren’t listed. The r..

The Salcombe RNLI Resolution Fun Run is a 7km scenic trail run held in Salcombe, starting from Island Street. The course loops around the picturesque Snape’s Point, offering participants stunning coastal views and fresh air. Taking place on..

Finish the year with the River Thames Run, a six hour timed challenge along a flat, scenic out and back route beside the Thames. Choose a 3.28 mile lap, 5k, 10k or go further up to ultramarathon distance while enjoying club facilities.

January 2026

Kick off the new year with the Wooler Vertical 1k feet Trail Race, a challenging 4 mile route gaining 1000 feet to the top of Humbleton Hill from The Cheviot Centre. Fully marked trail and sweeping views make it a memorable way to start 202..