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 1340 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 Surrey's G3 run series in January and February 2026 with 10 km or 15 km cross country trail races over mud, sand, rocks and forest. Tough descents, road crossings and other trail users add variety so trail shoes are recommended.

Run across the stunning 1,000 acre Harewood House estate on 10 January 2026 with 5km, 10km and half marathon options. Canicross friendly with medals, snacks and lively chip timing for a memorable winter trail experience.

Scarborough Rock offers scenic 26 and 16 mile coastal and moorland routes from Scalby Parish Hall, passing Oliver's Mount. Popular LDWA event with checkpoints, food and a finishers meal; currently full with a waiting list.

Run the North Cornwall coast from Polzeath beach past dramatic cliffs, sandy bays and fishing villages for a scenic but demanding trail. Choose 10K to ultra distances with big climbs, chip timing and leaderboard points.

UTMB Index

Take on the Round Sheffield Run: Winter, a multi stage trail enduro in Endcliffe Park with 11 timed stages and a mix of runnable trails and walking links. Enter solo or as a pair and enjoy post race food, Thornbridge beer and a finisher med..

Tackle winter trails through 4,900 acres of Hamsterley Forest with half marathon and 10k options on Saturday 10 January 2026. Expect undulating woodland paths, stunning valley views and marshaled aid stations to keep you going.

Guided 30 mile trail ultra from St Martha's Hill along the North Downs Way, over Box Hill and past Denbies, led by an experienced coach. Welcoming new ultra runners who can manage 22 mile training and hold about 10 min/mile.

Bowland Ultra 2026 is a 42 mile ultramarathon from Slaidburn across the rugged Bowland fells. Prepare for winter terrain, on course aid and GPS tracking, and a warm finish while supporting local foodbanks.

Scenic 43 mile ultra from Wendover to London's Little Venice that blends country trails, roads and canal towpath into a tough but rewarding city finish. GPS tracking and checkpoints keep you covered on this classic test of endurance.

Brave a deep winter fell run to the summit of Hedgehope and back in the Winter Wipeout, about a half marathon amid snow, sleet and winter winds. Part of the Shadowlands Series, runners get a marked course, marshals and warming soup at the f..

Take on upland trails in the Elan and Claerwen Valleys with an annual 12 and 20 mile walking and running challenge. Parts of the route are waymarked and map reading skills are needed; route maps and GPX files are sent to entrants in advance..

Run the Bowland Trail Half on 10 January 2026 from Slaidburn, a rugged 13 mile mixed surface route with memorable moorland scenery. Unmarked but supported with GPX and mandatory kit, finish with a meal while supporting local foodbanks.

Join Runners next the Sea for a 5 mile beach race at Holkham Beach on 11 January 2026, enjoying a scenic route along dunes and open shoreline. Chip timing, a keepsake for every finisher, and a friendly race day vibe.

Its Grim Up North Running presents the Skipton Sweetie Skedaddle in Skipton, starting near Aireville Park and finishing in town. The flat, towpath course runs along the Leeds and Liverpool Canal and offers distances from 5k to Ultra. Depend..

Take part in Festive 5 on 11 Jan 2026, a 5 mile off road run along the River Avon through Fladbury and Lower Moor. Organised by Friends of Fladbury, this fundraiser offers free cake, spot prizes and supports local community projects.

The Northampton 10K is a well-organized running event held at Northampton Racecourse Park, featuring a 2.2 km start followed by three laps around the racecourse. The course is accurately measured and takes place on pathway terrain, offering..

Timed multi lap run at Brandon Country Park in Thetford Forest. Choose a four or six hour session and complete as many 5.3 km loops as you like. Aid station, finisher medal and virtual entries make this a scenic, flexible challenge.

Tackle the Montane Winter Spine, a nonstop 268 mile trail along the Pennine Way from Edale to Kirk Yetholm through wild winter moorland and mountain terrain. Expect long days, big climbs and checkpoints with hot food and shelter.

UTMB Index

Explore scenic off road trails around Farley Mount near Winchester with 12 km and 21 km options, chip timing and a finisher medal. Start and finish at Sparsholt College with great parking and welcoming race day support.

Tackle the rugged Cannock Chase Trigs, a self navigated 26.5 km trig points race across sandy climbs, forest singletrack and open heath. Organised by Mercia Fell Runners on 11 January 2026, this adventurous loop tests navigation and stamina..