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 1306 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.

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..

Run the New Forest Xmas Trails in New Forest National Park on runnable but testing single lap routes through heathland and woodland from Holmesly Campsite, Bransgore. Choose 15km, 30km, marathon or 50km and plant a tree instead of a medal.

Join the Chasewater Christmas Pudding Dash on 7 December for scenic 5k and 10k trail laps around Chasewater Reservoir, plus a junior run. Enjoy festive fun with a bespoke medal, free photos and prizes including best dressed costume.

The Mince Pie 10 is a festive 10-mile race held in Peacehaven, East Sussex, organized by Seaford Striders. The multi-terrain course features about six miles of farm tracks and bridleways, with the remaining four miles on quiet roads, includ..

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.

The Allsorts Tinkley Gate Santa Dash is a festive, family-friendly running event held at the scenic National Trust Tinkley Gate site in Woodchester, Gloucestershire. Participants can choose between a 5km off-road trail or a shorter 2.5km ro..

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.

Join the Nuts Christmas Trail Race on 7 December 2025 in Balbirnie Park for a lively 4 to 5 mile woodland run with mud, water crossings and gentle climbs. Limited to 140 entrants, every finisher earns a bespoke race memento and top runners..

Join Northwich Running Club for the Marbury Festive Fun Run on 7 Dec at Marbury Country Park, a flat 3 km loop for running or walking. Fancy dress is encouraged, Santa's Helpers will cheer you in and finishers get a Christmas medal and trea..

Take on the 14th Harmeny AC 7R Multi Terrain half marathon around seven reservoirs near Balerno on 7 December 2025. Varied trails, boggy sections and sweeping reservoir views make for a tough but scenic off road challenge.

Navigate the sand dune maze of Braunton Burrows South at a scenic orienteering event on Sunday 7 December, part of the South West Orienteering League. Multiple courses for all abilities promise coastal views across the Taw estuary and Saunt..

Join a regional colour coded orienteering event at Highwoods Country Park, Colchester on Sunday 7 December with courses for all abilities up to a 7.0 km Blue course. Enjoy woodland and grassland terrain, waterproof maps and a friendly vibe.

Explore Greenhead Park and nearby streets in a fun urban orienteering using the MapRun app, with courses from short family routes to longer challenges. Meet in the Community Room beside Greenhead Park Café for maps and registration.

Join the Christmas Cracker at Newlands Corner on 7 December for pantomime themed family score orienteering and colour coded Orange Green and Blue courses. Guildford Orienteers will provide festive refreshments and friendly guidance.

Enjoy colour coded orienteering at Beverley Westwood with courses for novices through experienced navigators. Explore runnable common land, small woods and contour features while grazing cows and a nearby golf course add local charm.