Trail Running calendar near Bannau Brycheiniog National Park (Brecon Beacons) 2025-2026

How Hard Can It Be Events presents The November Nightmare, a multi-day endurance challenge in Telford, Shropshire. The eight-day event runs Sunday to Sunday (2–9 November) with daily options of 8 miles, a half marathon (about 16 miles) or a full marathon, and participants can enter individual days o..

Twmbarlwm Terror is a 7-mile multi-terrain race organised by Fairwater Runners Cwmbran in Risca, near Newport, South Wales. The route combines footpaths, open fields, country lanes and woodland from Risca Leisure Centre to the Twmbarlwm peak and back, with around 1,000 feet of total ascent. Now in i..

Endurancelife Gower offers a series of trail running events set in the stunning Gower Peninsula, the UK's first designated Area of Outstanding Natural Beauty. Participants can choose from 10K, half marathon, marathon, and ultra distances, all featuring challenging terrain including grass, moor, beac..

Beacons Ultra, Marathon and Half is a three-distance running weekend in the Brecon Beacons, start and finish in Talybont-on-Usk (Henderson Hall). The event offers a 49-mile ultra, a 26-mile marathon and a 13-mile half marathon, all on mixed trail, mountain, canal and road terrain. The Ultra runs two..

MoRunning Bristol is held at Ashton Court Park in Bristol and includes 1.5k Mini MoRun for kids, plus 5k and 10k MoRuns. The route combines paths and trails with hills from 1km up to 3km; it’s dog-friendly and suitable for off-road buggies, though some sections may be muddy or bumpy and it isn’t whe..

DirtRun In The Dark is an off-road running event held at The Wyre Forest, Callow Hill Visitor Centre. Participants tackle a 10km course consisting of two laps around forest tracks and trails, all run in the dark, making torches compulsory. The race welcomes runners aged 14 and above and allows canic..

Trails & Tarmac 12hr Backyard Ultra, organized by Limitless Trails, takes place near Crickhowell in the Black Mountains. The race uses a 4.2-mile loop and features 12 laps within a 12-hour cap. The first eleven loops are completed within an hour; the twelfth yard becomes a final sprint to determine..

Bath Skyline 5km & 10km, a Relish Running Races off-road event at West Car Park, University of Bath (BA2 7AY), features night and day races across 5km and 10km, plus a daytime 500m kids' run. The hill-top routes traverse woodland trails, meadows and trails with views over Bath; expect muddy sections..

The Margam Trail Races take place at Margam Country Park and Forest, offering runners a scenic and well-marked trail running experience. The event features three distances: a half marathon (21.1 km with 750m elevation), a 10k (10.2 km with 420m elevation), and a 5k (5.1 km with 140m elevation). The..

Dawn Two Dusk (Day Light Robery) is a 12-hour endurance event held at Bridgend Miniature Railway in the Bridgend area of South Wales. Participants tackle three 10-mile routes and attempt to run as many loops as possible within the 12-hour window. The mixed-terrain course includes hills, short road s..

The Callow Fell Race, organized by Mercia Fell Runners, is a challenging event that has transitioned from a summer to a winter series race. Covering a distance of 8.1 km with a total ascent of 762 meters, it is recognized as one of the toughest races in Shropshire. The course features steep climbs a..

The Cardiff Trail Half Marathon is an exciting running event set against the stunning backdrop of Castell Coch. Scheduled for November 16, 2025, this newly introduced race offers a unique blend of competition and scenic beauty, making it an ideal experience for both seasoned athletes and newcomers...

The Beckbury Trail is a 10K multi-terrain running event organized by Lawley Running Club, celebrating its 10th anniversary. Set in the scenic rural village and parish of Beckbury, Shropshire, the course features a mix of trail and a small section of road, including the challenging Badgers Bite Hill...

The MT10 (Multi-Terrain 10) is a 10-mile (16 km) off-road trail run held at Pembrey Country Park and along Cefn Sidan Beach in Carmarthenshire. The course features a mix of soil and firm sand surfaces, providing a varied terrain that accommodates runners of all abilities. Set in a scenic natural env..

The Avebury8 Nine is a small, highly regarded trail race set in the Avebury World Heritage Site in Wiltshire. The roughly 9-mile course starts and finishes in Avebury, with the route starting on Bray Street, heading north to Yatesbury Lane, through Yatesbury, and returning to Avebury High Street to..

Broadway Marathon & Half Marathon, organized by Cotswold Trail Events, takes place in Broadway, Worcestershire, in the northern Cotswolds. The event offers two distances: a marathon and a half marathon. The route is a longer, hilly, muddy tour featuring trails and mostly unpaved tracks, with a few m..

The Smurf Run in Aberdare, Wales, is a unique 7-hour time challenge event hosted by Saturn Running at the scenic Dare Valley Country Park. Participants can choose their distance, starting from a minimum of 3km, with laps of approximately 7km (4.37 miles) on well-maintained footpaths offering beautif..

The Action Heart Tuff Un is an annual multi-terrain running event held at Baggeridge Country Park in Dudley. Covering approximately 6 miles, the course features undulating trails, muddy paths, and a shallow stream crossing, offering a challenging yet rewarding experience for runners of all levels. W..

The Weston Park 10k and 5k is an annual multi-terrain trail running event held in the scenic grounds of Weston Park, Weston-under-Lizard, Shropshire. The course features a mix of concrete, tarmac, gravel paths, and a short grass section, showcasing the historic park's landmarks. The 5k route covers..

The Combe Crawler is a legendary cross-country race hosted by Ilfracombe Running Club in Ilfracombe, North Devon. Usually held on the last Sunday of November, the course covers about 8.5 miles (13.6 km) of multi-terrain course, starting and finishing at Ilfracombe Football Club on Marlborough Way. R..