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 1482 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.

Farmmageddon is an exciting 100-mile running event organized by Zig Zag Running, taking place over two days at Hyde Hall Farm. Participants will tackle a 5.3k loop course, with a total time limit of 32 hours to complete their chosen distance. The event caters to all abilities, offering various dista..

The Skye Trail Ultra is a challenging 75-mile ultra-marathon across the Isle of Skye, Scotland, featuring 3,780 meters of elevation. This self-navigation race traverses some of the UK's most stunning mountain ranges and coastal trails, starting at Duntulm in the north and finishing at Broadford Vill..

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Kirkhill 8 is an 8-hour trail running event held at Kirkhill Forest, Scotland, featuring a 4.3-mile loop course. Runners can complete as many laps as they wish, targeting distances from 20 miles up to 50 miles or more, making it suitable for beginners, experienced ultra runners, and competitive race..

The Isle of Jura Fell Race is a challenging and prestigious event in British hill racing, featuring a demanding 28km course that includes seven summits and a total elevation gain of 2,370 meters. Known for its rugged terrain, the race requires participants to possess significant hillcraft and endura..

The Grand Union Canal 145 Mile Race (GUCR) is a premier ultra-distance running event held annually in the UK, covering 145 miles from Gas Street Basin in Birmingham to Little Venice in London. The race follows the well-marked Grand Union Canal Towpath, offering a relatively flat and easy-to-navigate..

The Montane Ullswater Way Trail Ultra is a scenic trail running event held in Glenridding, Cumbria, Great Britain. It offers three distances: a 33.5-mile Ultra, a 21.5-mile Trail 20, and a 10-mile Trail 10. The Ultra route follows the Ullswater Way, including the Lowther and Dalemain loops, while th..

The Across the Cynllaith Hillwalk is a scenic walking and running event held in Trefonen, near the Shropshire-Mid Wales border. Participants can choose between two routes: a 10-mile circular walk and a more challenging 16-mile figure-of-eight route, both starting and finishing at Trefonen Village Ha..

The Coniston Gullies is an exhilarating fell race organized by the British Open Fell Runners Association (BOFRA), designed for adventurous runners. This challenging event features a short distance of 1.00 mile (1.60 km) with a significant elevation gain of 900 feet (270 meters), making it a true tes..

The Taunton Trail Run, organized by Prosper Events in South-west England, offers both a 10K and a half marathon on an ultra-flat, fast course ideal for beginners and experienced trail runners alike. Set along Taunton's scenic waterways, the event provides a beautiful natural backdrop and a well-mark..

Woohoo It's Hornsea is a popular trail running event organized by It's Grim Up North Running, set along the scenic Trans Pennine Trail in East Yorkshire. Participants can enjoy a variety of distances, including 5K, 10K, half marathon, and marathon, all featuring a flat terrain ideal for runners of a..

The Bredon Cricket Club Tower Run is a 10k trail running event scheduled for May 25, 2025. Starting and finishing at the scenic Bredon Cricket Club, the route takes participants through beautiful country lanes and paths, culminating at the summit of Bredon Hill, which features an Iron Age fort and t..

The Guided Lairig Ghru Crossing is a 32km trail running event through the historic high mountain pass in Scotland, taking participants across remote and rugged terrain. Led by experienced guides, the event includes a transfer from Aviemore to the Linn of Dee, where runners begin their journey northw..

The Granite Peaks Races, organized by the Northern Ireland Mountain Running Association, take place at Tollymore Forest Park, County Down, on Sunday, 25th May 2025. The event features three challenging mountain running races: 25km, 50km, and 80km distances, all starting from the Tollymore National O..

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The Goole Riverbank Challenge 10k is a flat, multi-terrain running event held in Goole, East Riding. The course starts along the riverbank of the Ouse, passes through Hook village, circles the bandstand at Riverside Gardens, and returns to the start/finish line. Ideal for first-time 10k runners, the..

The St Boswells Wobbly Trail Race 2025 is an approximately 8.5-mile trail running event held in the Scottish Borders. The course features a mix of rooty paths, scenic views of a river, and a notable historic Wobbly Bridge halfway through. Participants can register at the village hall before the race..

The Crocodile 8 is an annual running event organized by Wye Valley Runners, held in Herefordshire around the villages of Tillington and Burghill. The race covers approximately 8.8 miles on a mixed course of trails, tarmac, and woodland paths, featuring challenging steep climbs and sharp descents kno..

The Whinlatter Forest Half Marathon & 10K, held in May 2025, is a challenging trail running event set in the scenic Whinlatter Forest within the Lake District, a World Heritage Site. Participants can choose between a half marathon (13.1 miles) and a 10K (6.2 miles), both featuring firm trail paths w..

The Northiam 8.5km Trail Race is a scenic trail running event held around Northiam, starting and finishing at Northiam Village Hall. The course features over 62% trail terrain, offering runners picturesque views and passing local landmarks. The race is fully marked and marshalled, ensuring a safe an..

The Angles Way Ultra is a long-distance trail running event held along the scenic Waveney River valley on the Norfolk/Suffolk border, between Thetford and Great Yarmouth. The event features two distances: a 100k ultra starting in Diss and a 50k ultra beginning in Shipmeadow, both finishing in Great..

The Charlesworth Chase is an annual fell running event organized by Wharfedale Harriers, taking place in Appletreewick. The race covers approximately 5.2 miles (8.3 km) with an elevation gain of around 1,200 feet (366 meters). Participants start from the Craven Arms, heading along roads, across fiel..