Trail Running Calendar United Kingdom 2025-2026

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

The Moors The Merrier is a festive 21-mile circular running and walking event held at Hebden Bridge Golf Club in West Yorkshire. The anti-clockwise route traverses scenic moors including Midgley, Wadsworth, Heptonstall, and Erringden, featuring 3,900 feet of ascent and a challenging final climb back..

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 Cairnsmore Hill Race is a challenging fell running event held in December 2025 in the Southern Galloway mountains. Covering a circular route of approximately 17.5 km (11 miles) with 800 meters of ascent, the race starts and finishes at Muirfad Farm near Newton Stewart. Participants will navigate..

The Valhalla Winter Run 2025 is a 6-hour timed trail running event held on Saturday, 13th December, at the University of York Sports Centre. Participants run laps of a 2.2-mile out-and-back course featuring a slight ascent, challenging by local standards. Runners choose their distance, from a single..

The Celtic Trail Races 2025, held in Aberdare, Wales, is a festive trail running event featuring three race options: a 50k ultra, a marathon, and a half marathon. The courses traverse scenic areas including Afan Forest, Rhigos Mountain, and the Brecon Beacons, with routes passing ancient Celtic trac..

The 20th Regular Irregular is a running and walking event held in the Holmfirth area, starting and finishing at Brockholes Village Hall. Participants can choose to complete one or more of three looped routes measuring 11.6 miles, 7.2 miles, and 4.2 miles, tackling them in descending order of length...

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 race follows a mystery route that changes annually, starting at Otley Methodist Church and finishing at The B..

Run to the Rising Sun is a new 10k trail race set in the scenic Rising Sun Country Park in North Tyneside. Participants will enjoy an early morning start designed to coincide with the sunrise, providing a stunning backdrop for the race. The course features well-marked, traffic-free paths suitable fo..

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

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 Sherwood Pines Festive Trail Runs, held near Mansfield in Nottinghamshire, offer a family-friendly running event set within 3,300 acres of scenic woodland steeped in Robin Hood history. Participants can choose from a 10km trail run suitable for those aged 15 and over, and a Family 1 Mile event f..

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..

The ACORN South By Five series is a popular running event held across six parks in Glasgow, including Pollok Park, where a 5km race takes place as part of the 2025/26 series. Runners can participate in individual races or the full series, which requires completing at least five of the six events to..

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 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 including arrows and hi-vis tape..

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 up to the 70..

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..

The Christmas Pudding Dash is a festive multi-terrain running event held in Pett, near Hastings, celebrating its 20th year. Participants can choose from a 5-mile race, a 2-mile fun run, and a children's scurry, making it a family-friendly occasion. The course features undulating, muddy trails throug..

The Nightmare Before Xmas Trail ½ Marathon is a challenging running event set to take place at the Bridgend Miniature Railway Centre. Participants will tackle a mixed terrain course that includes an 8-mile section known as The Hateful Eight, followed by an additional 5 miles filled with obstacles li..