Trail Running calendar near Llanberis 2025-2026

We have found 92 Trailruns within 80 miles of Llanberis. See below where and when you can find the races.

The Alyn Waters Winter Trails offer 5k and 10k fully marked and marshalled trail running courses set in the scenic Alyn Waters country park. Designed for all abilities, the event encourages participants to race or enjoy a leisurely run without time limits. The accessible paths feature varied terrain..

The Telford T50 Trail Run is a challenging 50-mile winter trail race held in Telford, Shropshire, starting from The Unicorn Inn in Little Dawley. The course follows the renowned Telford T50 pathway, showcasing historic and scenic landmarks such as Ironbridge and the Wrekin, passing through industria..

The Cardington Cracker is a popular fell running event organized by Telford Athletic Club, taking place in Cardington, Shropshire. The race covers a distance of 14.5 km with a total ascent of 793 meters, making it a challenging course, especially in December's conditions. Participants must pre-regis..

The Sea 2 Summit - Offa's Dyke Half/Full/Ultra is a challenging running event that takes place along the scenic Offa's Dyke footpath, starting from Prestatyn seafront. Participants can choose from three distances: Half Marathon, Full Marathon, and a new Ultra distance of 33 miles, which culminates a..

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 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 Midwinter Mortimer Trail is a challenging trail running event held in Herefordshire, England, featuring two main distances: a 30-mile ultra and a 15-mile Croft 15 route. The ultra course runs from Ludlow Castle to Kington, traversing the scenic Marches landscape with forests, limestone tops, hil..

January 2026

The Holly Challenge is an exciting running event organized by How Hard Can It Be Events, set to take place in Lightmoor, Telford. Participants can choose from four distances: 5K, 10K, Half Marathon, or Marathon, making it suitable for runners of all levels. This event marks the first race of the yea..

The Icing On The Cake is a thrilling trail running event set in the picturesque Shropshire Hills, featuring both half (13.1 miles) and full (26.2 miles) marathon options. Scheduled for February 1, 2025, participants will navigate a scenic route that showcases the rugged beauty of the area, starting..

February 2026

The Anglezarke Amble Challenge is a scenic endurance event held in the West Pennine Moors near Rivington, England, often called the "Little Lake District." It offers two walking distances: a 17-mile short route and a 24-mile long route, with runners restricted to the longer course. The route feature..

The Chester Ultra 50 is a 50-mile ultra-marathon held in Chester, UK, featuring 849 meters of elevation gain. Celebrating its 10th anniversary in 2026, the race is organized by GB Ultras and follows scenic trails including the North Cheshire Way and the Sandstone Trail, passing through Helsby Hill,..

UTMB Index
March 2026

Cloud Nine is a scenic and challenging 9-mile hill race organized by Congleton Harriers, starting in Congleton and ascending to the summit of Bosley Cloud at 1125 feet before returning via the ancient Bridestones. The mostly off-road course features 1250 feet of ascent and is categorized as a BM fel..

The Loggerheads Trail 5k & 10k is a popular trail running event set to take place in March 2026 at Loggerheads Country Park. Participants can choose from three race options: a 5k Trail, a 5k Canicross Trail, and a challenging new 10km route. The courses feature a variety of terrains, including river..

The PFW Running - Granny's Bay Challenge is an annual running event held in the scenic seaside town of Lytham, Lancashire. Starting at the Fylde Spitfire Memorial, the course follows a flat, 5.24-mile out-and-back loop along the Ribble estuary, passing landmarks such as Fairhaven Lake, Granny's Bay,..

The Nant Yr Arian Silver Trail Races take place in the scenic Cambrian Mountains, offering runners a choice between a Half Marathon and a 10km trail run. The courses feature challenging and varied terrain with spectacular mountain views, suitable for both beginners and experienced trail runners. The..

The Brynkinalt Running Festival, held on the private Brynkinalt Estate in Wrexham, offers trail running and canicross events over approximately 5k and 10k distances. The festival welcomes participants of all ages and abilities, providing a challenging course featuring a mix of fast footpaths, grassy..

The Beast of the Blacks is a challenging trail running event held in the stunning Black Mountains of Wales, starting and finishing at Llanbedr Hall near Crickhowell, Powys. Offering 10, 20, and 40-mile distances, the course features marked routes with significant elevation gains (up to 9,106 feet fo..

The Moel Famau Easter 'Piece of String' Race is a fun and inclusive outdoor event held at the start of the Easter holidays. Participants can enjoy a scenic run on the region's popular hill, with routes ranging from 6 to 12 kilometers that are well-marked and marshalled. The race features hilly terra..

The Combe Gibbet to Overton Race will take place in Overton on Sunday 29 March 2026.

April 2026

The Summit 2 Sea - Offa's Dyke Half Marathon is a challenging spring race covering approximately 13.8 miles from the summit of Moel y Parc to the coast at Prestatyn. Runners will ascend over 2,450 feet, starting at over 1,300 feet above sea level, along the scenic Offa's Dyke National Trail. The cou..