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 1307 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.

Celebrate the season on rugged Black Mountains trails at the Secret Santa Festive Trail Series. Three scenic but technical distances, bespoke medals, mulled wine and full on course support make for a memorable winter run.

Join the Cannock Chase Forest Christmas trail runs on 6 December for 5k, 10k and a junior run through undulating forest trails. Wear seasonal fancy dress for a chance to win best dressed, and enjoy a bespoke medal, free photos and prizes.

The Alyn Waters Winter Trails offer 5k and 10k fully marked and marshalled trail running courses set in the scenic Alyn Waters country park. Designed for all abilities, the event encourages participants to race or enjoy a leisurely run with..

Run scenic, undulating trails around Carsington Water in a choice of a half marathon or 10K, with kilometre markers and friendly course support. Entries include chip timing, free photos and a finisher medal to celebrate your effort.

The Siblyback Santa Scamper will take place in Liskeard from Saturday 6 December 2025 to Sunday 7 December 2025. You can run 9 kilometers.

Pick 14 km, 10 miles or a half marathon from Cwmdu across the Black Mountains with rocky single track, boggy moorland and stunning views. Well marked with checkpoints and medical cover, this scenic but testing trail welcomes dogs on leads.

Telford T50 Trail Run is a winter 50 miles route through Ironbridge, the Wrekin and industrial heritage sites, with four checkpoints serving food and cake. Tackle rugged trails and claim the organiser's biggest ever finisher medal.

Join a magical evening run through parkland past the illuminated Cowdray Ruins at the Cowdray Winter Night Run. Head torches are mandatory and there are 5 km and 10 km distances plus dog friendly canicross and kids races.

Take on Rudolph's Romp, a scenic 25 mile route across the Yorkshire Wolds with sweeping views of the Vale of York and the Humber. Organised by LDWA East Yorkshire on 6 December 2025.

Take on the Salisbury Plain Winter Edition on 6 December for a scenic, fully marked trail challenge over Half or Marathon distances. Enjoy well stocked aid stations, marshals and finisher medals as you tackle crisp winter terrain.

Join the Otterton Reindeer Run for a festive 3 km fun run or a scenic 10 km multi terrain route through Otter Valley. A village event that raises funds for local projects with fancy dress prizes and post race treats.

Explore the New Forest with Wessex Orienteering from Bolderwood Car Park, tackling technical woodland courses from a challenging Blue to a 60 minute Score challenge. Entry and parking are limited so book early and car share if you can.

Experience a magical night trail run through the atmospheric Cowdray Estate, passing the iconic ruins under the stars. Choose kids and adult distances from 3 km to 10 km for a fun evening in the Run the Seasons Winter series.

Take on a hilly 10 km trail through scenic Tollymore Forest Park at the NIMRA Run For Rescue on 6 Dec 2025. Support Mourne Mountain Rescue with a voluntary donation while enjoying a marked and marshalled course.

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

Run a scenic 10 mile trail around Grafham Water, weaving through woodland, Dragonfly Pond and Sanctuary Bay before a final mile along the dam wall. Canicross runs in a separate wave so you can bring your dog on a lead.

Bauble Bimble at Ferry Meadows is a relaxed lap based race where you run as many 5.3 km laps as you like in your chosen time. Small field, bespoke finisher medal, aid on each lap and virtual places; bring your own bottle.

The Cardington Cracker on 7 December 2025 is a classic Shropshire fell race, 14.5 km with 793 m of ascent across moorland and steep climbs. Entry is by pre registration with just 250 places, so book early for a challenging winter trail.

Tackle a challenging winter fell race across Mytholmroyd moorland with sustained climbs, flagged route and technical sections. FRA licensed and kit checked, this scenic 6 mile course rewards bold navigation and grit.

Sea 2 Summit Offa's Dyke is a scenic yet tough trail race from Prestatyn along the Offa's Dyke National Trail, offering Half Marathon, Full Marathon and a 33 mile Ultra. Electronically timed with a finisher medal, it promises big views and..