Trail Running Calendar United Kingdom 2025-2026

The New Forest Xmas Trails is a festive trail running event hosted by BigFeat Events, set in the picturesque New Forest National Park. Participants can choose from four distances: 15K, 30K, Marathon, and 50K, all on challenging yet runnable off-road courses. The event begins at Holmesly Campsite, of..

The Winter Downs 200 is a challenging 200-mile continuous trail ultramarathon held in South East England, starting and finishing at Juniper Hall near Box Hill, Dorking. Scheduled for December 10-14, 2025, runners have up to 96 hours to complete a giant loop incorporating five major trails: North Dow..

The Valhalla Winter Run 2025 is a 6-hour timed trail running event held on December 13th at the University of York Sports Centre. Participants run laps of a 2.2-mile out-and-back course featuring a slight ascent, challenging in York terms but manageable overall. Runners can choose their distance, fr..

The Celtic Trail Races, held annually at Dare Valley Country Park in Aberdare, South Wales, offer a festive trail running experience with three distances: a 34-mile ultra, a 26-mile marathon, and a 13-mile half marathon. The courses traverse rugged, ancient Celtic tracks through Afan Forest and the..

The Punk Panther Christmas Cracker is a winter trail running event held in Otley, UK, featuring three distance options: 12, 19, and 32 miles with climbs ranging from 1,700 to 3,400 feet. The course follows a mystery route that changes annually, starting at Otley Methodist Church and finishing at The..

The Cairnsmore Hill Race, organized by the Galloway Mountain Rescue Team, is a challenging winter hill running event held in the Southern Galloway mountains near Newton Stewart, Scotland. The race covers a circular 17.5 km (11 miles) route with 800 meters (2560 feet) of ascent, starting and finishin..

The Fairytale of Newquay is a festive coastal ultramarathon and long half marathon held in December 2025 along Cornwall's North Coast. Participants can choose between a 15-mile long half marathon or a 30-mile ultramarathon, starting and finishing at Porth Beach. The event features self-navigation al..

The Moors The Merrier is a festive 21-mile circular running and walking event held around the moors of Hebden Bridge, starting and finishing at Hebden Bridge Golf Club. The anti-clockwise route traverses Midgley Moor, Wadsworth Moor, Heptonstall Moor, and Erringden Moor, featuring 3,900 feet of asce..

The 20th Regular Irregular is a walking and running event held in the scenic Holmfirth area, starting and finishing at Brockholes Village Hall. Participants can choose from three looped routes of varying distances: 11.6 miles, 7.2 miles, and 4.2 miles, completing them in order from longest to shorte..

The Mince Pi Run - Races of 2 Decimal Places is a unique running event held at Shalford Park, Guildford, featuring distances from 3.14 to 31.4 miles, corresponding to 1 to 10 laps of a scenic, mostly flat off-road course with a few hills. There is also a Pi marathon option and a 1-mile fun run shape..

The BigXmas Trail Festival is an annual trail running event held at Sale Water Park in Greater Manchester, blending urban and rural landscapes. Now in its fourth year, it offers three race distances: 11km, half marathon, and marathon. The courses are fully marked and marshalled, suitable for both be..

The Salcey Forest Christmas 10K, 5K & Junior Fun Run is a festive trail running event held in Salcey Forest, Northamptonshire. Set amidst beautiful, tree-lined woodland paths, the race offers a virtually flat, mixed-terrain course that can be occasionally muddy. Participants can choose between a 10K..

The Let it Stow Half Trail Marathon is a festive-themed 13.1-mile trail race held in Stowmarket, Suffolk, showcasing scenic views of the town and Mid-Suffolk countryside. The course features a mix of woodland, meadows, and quiet country lanes, with well-marked routes using arrows and hi-vis tape. Th..

The Saturn 7 Hour Time Challenge in Durham is a festive trail running event held at the Durham Amateur Rowing Club along the scenic River Wear, offering views of the Cathedral. Participants can run laps of a 4.37-mile (7km) course, with a minimum distance of 5km and options to complete half marathon..

'Twas The Run Before Christmas is a festive running event held at Brandon Country Park in Suffolk, located in the heart of Thetford Forest. Participants can choose between a 6-hour or 4-hour timed event, running multiple laps of a 5.3 km multi-terrain course featuring gravel footpaths and grass area..

Run to the Rising Sun is a 10k trail race held at Rising Sun Country Park in North Tyneside. The event features a well-marked, traffic-free course on a mix of hard-packed gravel, grassy paths, and woodland trails, suitable for both novice and experienced trail runners. The race is designed to start..

The Sherwood Pines Festive Trail Runs, held near Mansfield in Nottinghamshire, offer a scenic and family-friendly running event set within 3,300 acres of woodland steeped in Robin Hood history. The 2025 event features a new 5km trail run alongside the established 10km trail and a family 1-mile run,..

The Silent Night Fell Race, organized by Durham Fell Runners and supported by the Fell Runners Association, is a challenging winter event held near St John’s Chapel, Weardale. Covering 6.6 km with 370 meters of ascent, the race takes place entirely in the dark on rough, pathless terrain leading to t..

The Nightmare Before Xmas Trail ½ Marathon is a challenging trail running event held at the Bridgend Miniature Railway Centre in Bridgend, UK. Participants first tackle "The Hateful Eight," an 8-mile route featuring mixed terrain including a tough hill, scenic road sections, and technical downhill f..

The Moel Famau Festive 'Piece of String' Race is a unique running event held on the last Saturday before Christmas at Bwlch Penbarras. Participants can expect a surprise distance and route, ranging between 6 and 12 kilometers, which will be revealed as the race progresses. The event includes a Canic..