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 1454 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.

The Causeway Cost Ultra Marathon will take place in Portballintrae on Saturday 20 September 2025. You can run 42 kilometers.

The Cotswold Way Century is a challenging trail running event covering approximately 102 miles from Chipping Campden to Bath along the scenic Cotswold Way National Trail. Participants have 32 hours to complete the course, which features a variety of terrains, including hilly paths, stone tracks, and..

The Holcombe 10 is an exciting running event featuring both a 10K and a 10-mile race, set against the stunning backdrop of Holcombe Moor. Organized in collaboration with the National Trust, participants will experience scenic routes that highlight conservation efforts in the area. The race begins at..

The NAV4 LiAD Recce from Helvellyn to Ambleside is a guided recce event held in the Lake District, covering approximately 11 miles with around 6,000 feet of ascent. Participants explore the challenging middle section of the Lakes in a Day (LiAD) route, including Helvellyn, Fairfield, and the descent..

The Norfolk Coastal Trail Marathon and Half Marathon take place along the scenic Norfolk Coast Path, starting from Holme-next-the-Sea for the full marathon and Burnham Overy Staithe for the half marathon, with both finishing at Morston Quay. The routes are mainly off-road, following well-marked trai..

The Yard Trail Races, hosted at Chilton Manor Farm in Hampshire, offers participants two scenic routes: a 10k and a 10-mile trail run. Both routes begin and end on a historic avenue lined with 800-year-old Yew trees, providing stunning views. Runners are welcomed at the finish line by friendly marsh..

The Woods is a challenging trail running event held at Tehidy Woods on the North Coast, featuring a 4-mile hilly loop through woodland terrain rich in history and legend. Participants choose from four race durations—3, 6, 9, or 12 hours—starting simultaneously, with the goal of completing as many la..

The Salomon Jacobite 100 is a premier mountain and trail running event set in the stunning Scottish Highlands. This challenging 100km race attracts over 2,000 participants from around 50 countries, showcasing the breathtaking landscapes of the region. The event is designed for runners aged 18 and ol..

The Lucky Horseshoe is a versatile running event hosted by Zig Zag Running at the Suffolk Running Centre in Bury St Edmunds. Offering distances from 5k to ultra marathon, participants can choose their preferred challenge on an out-and-back course featuring the Gallops Route and Golding Hills. The ro..

The Abersoch Half Marathon is a scenic 13.1-mile race held in the picturesque seaside village of Abersoch on the Llyn Peninsula in North Wales. The course features a mix of road running through charming villages, culminating in an exhilarating final kilometer along Abersoch Beach. Participants enjoy..

The Three Shires Fell Race, organized by Ambleside AC, is a challenging 22km (12.4 miles) mountain running event with a 1,535m (4,003ft) ascent, held annually in September. The race starts and finishes at Tilberthwaite Farm, passing through notable points such as Lingmoor, Pike of Blisco, Three Shir..

The Hardmoors 60 is a challenging ultramarathon held in North Yorkshire, UK, covering approximately 60 miles along the Cleveland Way from Guisborough to Filey. The route features stunning cliff-top trails and passes through picturesque coastal towns and fishing villages including Saltburn, Staithes,..

The Conquest of Avalon is a popular running event organized by Albion Running, featuring two race distances: a 30-mile and a 50-mile course. Both routes follow the historic Leland Trail, culminating in Glastonbury, known for its rich Arthurian legend. The race is characterized by a mix of road and t..

The Hambledon Hilly is an annual running event held at Hambledon Vineyard in Hampshire, England, with the 10th edition scheduled for September 20, 2025. The event features multiple race distances, including 1km, 2km, 5km, 10km, and 20km, catering to a wide range of participants from children to expe..

The Thornthwaite Round is a 15.6 km trail race held near Keswick, designed to raise funds for the restoration of Thornthwaite Church. The course features forest tracks, grassy ridges, and open fell, passing checkpoints at Lord’s Seat, Broom Fell, Brown How, Whinlatter, and Seat How. The route is mar..

Pilgrims’ Ultra is an ultramarathon event held in Northumberland, starting from Holy Island and featuring three distance options: 50k, 100k, and 100 miles. The race follows the scenic St Oswald’s Way route, showcasing Northumberland’s coastline, islands, castles, countryside, river valleys, hills, v..

The Humanity Direct Tring Ultra is a one-day ultra marathon event set in the scenic Chilterns, designed for both novice and experienced runners. Participants can choose from three distances: a full 50km ultra, a 27km half ultra, or a new 10km option. The event not only offers a challenging running e..

The Centurion Chiltern Wonderland 50 is a 50-mile ultramarathon set in the scenic Chiltern Hills of Oxfordshire, England. The race features a single-loop course covering 81 kilometers with 5,600 feet of elevation gain, primarily on trail terrain. Starting and ending in Goring-on-Thames, the route pa..

The High Peak 40 is a 40-mile ultramarathon held in the Peak District, starting and finishing in the picturesque town of Buxton. After an eight-year hiatus, the event returned in 2024 and is scheduled again for 2025. The challenging course features a mix of trails, paths, and roads, passing through..

The Salomon Trail Marathon 2025 is a premier mountain and trail running event taking place at Nevis Range, near Fort William. This marathon offers participants a scenic route through the beautiful Leanachan Forest, featuring well-maintained forestry tracks and paths. The event attracts over 2,000 ru..