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 1656 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 Really Wild Boar fell race on Sat 6 Dec 2025 in the York Dales, a 9 km challenge with 450 m of climb through classic fell terrain. On the day entry is £10 and includes soup and a roll. Register at the Fat Lamb Country Inn.

Join the Bobble Wobble Run at Hardy Farm for a relaxed off road towpath run around Chorlton Water Park with flexible rock up starts. Finishers get a bobble hat and medal while the race supports Flock and Fluff charity.

Support Hospice of St Francis at the Wild Christmas Charity Run, a guided 8km trail or 4km family walk from Church Farm Cafe. Enjoy a mince pie with entry, optional fancy dress and limited places so book early.

Take on the Hurtwood 50k through the Surrey Hills on 7 December 2025, a fully signed trail ultra with checkpoints and a 10 hour time limit. Entries open 12 December 2024 and the event welcomes fast walkers and first time ultra runners.

UTMB Index

Take on a scenic 10 mile trail around Grafham Water, starting on the dam and winding past woodlands, ponds and Sanctuary Bay. Choose the 10 mile run or canicross with your dog and enjoy a friendly, fast course and postrace treats.

Bauble Bimble at Ferry Meadows near Peterborough offers a scenic 5.3 km multi terrain lap with 4 hour or 6 hour timed options. Run as many laps as you like, refill at base camp and earn a bespoke finisher medal.

Tackle the Cardington Cracker on 7 December, a classic Shropshire fell race across 14.5 km with big climbs and stunning views. Rugged trails and village camaraderie make this a memorable winter challenge but places are limited so pre entry..

The Mytholmroyd Fell Race on Sunday 7 December 2025 offers a tough 6 mile route with 500 m ascent across classic Pennine terrain near Hebden Bridge. Pre entry and full FRA kit are required.

Sea 2 Summit on 7 December 2025 sets off from Prestatyn seafront along the stunning Offa's Dyke National Trail with half, full and 33 mile ultra options. Expect rugged winter trails, summit finishes and required safety kit; coach return is..

Join the New Forest Xmas Trails on 7 December 2025 for a festive run through heath and woodland in the New Forest. Fully marked single lap courses from 15km to 50km start at Holmesly Campsite and you can plant a tree instead of a medal.

Celebrate the season at the Chasewater Christmas Pudding Dash at Chasewater Country Park, a festive 10k, 5k and junior race around the reservoir on mostly flat trails. Enjoy medals, photos and fancy dress prizes while supporting Shelter.

The Mince Pie 10 is a festive 10 mile mixed terrain run in Peacehaven, with fancy dress, seasonal music and mince pies at the finish. Fun, muddy miles and a recycled medal await while supporting local children's and hospice charities.

Race the Trifarm Winter 10k, the final round of a four event trail series at Trifarm near Boreham. Enjoy a mostly off road clockwise route away from the river and a championship deciding atmosphere with just 50 places available.

Join the WILD DEER running session at Land of Oak & Iron on 7 December 2025 for a 75 minute coached workout suitable for all abilities. Expect interval work, hill efforts and varied running over 5 to 7 miles with a friendly group vibe.

Lakeland Paws Grizedale Growl on 7 December 2025 in Grizedale Forest offers scenic 5K and 10K runs on forest roads and trails with views over Coniston Water. Chip timed and dog friendly with up to two dogs per runner, event is full.

Join the inaugural Allsorts Tinkley Gate Santa Dash for a festive family friendly 5 km trail run at Woodchester, with costumes and a post race cafe. Dress as Santa or an elf to support local charity Allsorts; dogs on short leashes welcome.

Join a scenic 10 km loop around Rye Harbour Nature Reserve on 7 December 2025, mostly on trails and fully marshalled. Limited to 70 runners, the Winchelsea event finishes with tea and cake at the community centre.

Run around Glamis Castle on 7 December 2025 on scenic woodland and parkland trails, with a 1 mile family run plus 5 mile and 10 mile races. Dogs are welcome in the 5 and 10 mile events and all finishers receive a bespoke medal and festive t..

Join Partridge in a Pear Tree at Pengethley Manor on 7 December 2025, part of the festive 12 Days of Christmas series with distances from 5k to Ultra and a unique medal. Run or walk a scenic offroad loop through manor grounds, vineyards and..

The The Beacon Bash will take place in Appley Bridge on Sunday 7 December 2025. You can run 20 miles.