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 1300 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.

INFERNO – Edale’s Ring of Hell is a challenging trail running event held in Edale, located in the Peak District National Park, UK. The event offers four race distances: Ultra (41 miles with 10,000ft ascent), Marathon (27 miles, 6,400ft ascent), Half Marathon (15.5 miles, 4,000ft ascent), and 10 mile..

The James Herriot Country Trail Run is a popular annual 14-kilometer trail race held near Castle Bolton in Wensleydale, England. Organized by the Rotary Club of Wensleydale, the event attracts runners from across England who enjoy a scenic course featuring moorland tracks and paths. The start and fi..

The 3 Brewers 10km is a scenic trail running event held at the 3 Brewers Brewery, located on a farm in the Hertfordshire countryside near Hatfield. The race features a beautiful, undulating two-lap course that covers approximately 70% off-road terrain, including local trails, woodland, nature reserv..

Scurry to the Sea is a unique 12-mile running event held near Edinburgh, starting with a hill run to the top of Allermuir in the Pentland Hills. The course then descends towards the sea, combining cross country, urban orienteering, and road running. Participants navigate various trails through Edinb..

The Westfield 7.5km Trail Race is a scenic trail running event held at Westfield Community Hall in the UK. The course features a mainly off-road loop that follows the famous 1066 Country Walk for the first 3km, passing landmarks like the Bayeux Tapestry-inspired Farbanks Henge sculptures, then retur..

The Bembridge Trail 5 is a scenic 5-mile trail run held in Bembridge, Isle of Wight. The circular course starts and finishes at the Community Centre, guiding runners through picturesque areas including Bembridge Marshes, Centurions Copse, Peacock Hill, and along the Coastal Path. The route is undula..

The Holme Moss Fell Race is a challenging 28.5 km (17.8 miles) fell running event with 1,315 meters (4,215 feet) of ascent, held near Holmfirth at Cartworth Moor Cricket Club. The course features sections of the Pennine Way and extensive moorland terrain, including steep climbs and descents, making..

The Guided Trail Run at Bod Petryal offers participants a relaxed 10km experience through the scenic Clocaenog Forest. The route features beautiful forest trails, leading to the village of Melin y Wig, and includes a stretch along the Brenig way beside the river Clwyd. This event emphasizes a friend..

The ACORN Rouken Glen Trail Race is a scenic trail running event held in Rouken Glen Country Park, a historic 143-acre park located about 10km south of Glasgow. The race covers roughly 8km, consisting of two 4km laps that traverse a multi-terrain course featuring some mud, inclines, declines, and fa..

The ZigZag Great Barrow Challenge Day 4 takes place at the Suffolk Running Centre in Bury St Edmunds, IP29 5AX. This event is part of a 10-day series offering individual day entries with distances ranging from 5k to ultra marathon, allowing participants to choose their race and pace. Day 4 features..

The Hillsborough Castle & Gardens Running Festival, presented by Gateley, takes place on July 27, 2025, in Hillsborough, Northern Ireland. The event offers a 10K and a half marathon, both starting within the scenic grounds of Hillsborough Castle. The course features a mix of castle grounds, surround..

A Guided Run: The Cornish Skyline is a 16-mile guided trail run across Bodmin Moor, Cornwall's highest peaks. Starting at the Jamaica Inn, the route traverses wild, open moorland with minimal shelter, following sheep trods and public footpaths. The terrain is undulating and can be rough in places, b..

The White Horse Gallop is a circular half marathon trail running event that begins and ends on the Ridgeway, showcasing the scenic beauty of National Trust sites, including Ashdown House and the historic White Horse Hill. The course features an "undulating" route, providing a challenging yet enjoyab..

The Donkey Brae Races, held in Aberdour, Fife, are part of the annual Aberdour Festival, offering a vibrant community atmosphere with a village market, food trucks, and family-friendly activities. The event features a 7-mile scenic race along undulating coastal paths between Aberdour and Dalgety Bay..

The Pen Y Fan Challenge is a trail running event held in South Wales, featuring two race distances: 5 miles and 13 miles. Both courses include the ascent of Pen Y Fan, the highest peak in South Wales, offering a scenic and challenging experience. The event takes place near the LD3 8NL area and is or..

The Trifarm Summer Trail 10k is a scenic trail running event held at Trifarm in Boreham, Chelmsford, Essex. Organized by Multisport-Management, this race is part of a seasonal series and features a mostly off-road course, with over 95% of the route on public footpaths and bridleways. The course foll..

The Great Barrow Challenge Day 5, hosted by Zig Zag Running, takes place at the Suffolk Running Centre in Bury St Edmunds. This event is part of a 10-day running challenge offering various distances including 5k, 10k, half marathon, full marathon, and ultra marathon, allowing participants to choose..

The Zigzag Great Barrow Challenge Day 6 takes place at the Suffolk Running Centre in Bury St Edmunds, featuring the Golding Hills route. This trail event offers multiple distance options including 10k, half marathon, full marathon, and ultra marathon, catering to various fitness levels. The course i..

The Looe Summer Run is a 5.75-mile multi-terrain race held in West Looe, Cornwall, starting and finishing at The Millpool Centre. The scenic course follows the West Looe riverside, passes through Kilminorth Woods along the upper bridle path to Trelawne Woods, then descends toward the Looe Estuary, r..

The Great Barrow Challenge Day 6, hosted by Zig Zag Running, takes place at the Suffolk Running Centre in Bury St Edmunds. This event is part of a 10-day running challenge offering various distances including 5k, 10k, half marathon, full marathon, and ultra marathon, allowing participants to choose..