Trail Running calendar near Tongwynlais 2025-2026

The Dartmoor Winter Traverse is a fully supported endurance event held on Dartmoor, UK, offering two distances: a challenging 50 km ultra and a 30 km option. Participants run or walk from south to north across some of the most remote and wild parts of the moors, including landmarks like Red Lake, th..

The Two Tunnels Races, taking place in February 2026, offer a unique running experience through Bath's historic underground tunnels, the longest of their kind in the UK. Participants can choose from a variety of distances, including ultra marathons, half marathons, 10km, 5km, and family-friendly Col..

The Hameldown Hammer is a premier trail running event held in Widecombe-In-The-Moor, Dartmoor, featuring three challenging races: the Hammer Half Marathon, the 7EVEN (an 8-mile race), and the inaugural Ultra Hammer. The courses traverse rugged Dartmoor terrain with grassy, rocky, and occasionally mu..

The St David's Day Dragon Run 2026, organized by Saturn Running, takes place in the scenic Dare Valley Country Park in Aberdare, Wales. This 7-hour time challenge allows participants to run distances of their choice, starting from a minimum of 3km. The course features well-maintained footpaths with..

The Weymouth Bay 10K is a scenic charity fun run held in Weymouth, Dorset, starting at Bowleaze Green near the Riviera Hotel. The course is an accurately measured out-and-back route featuring two laps, extending towards Pleasure Pier and returning via Overcombe. The mostly flat road terrain (88%) of..

The Brecon to Cardiff Classic is a 70-kilometer (43-mile) ultra running race held annually along the scenic Taff Trail from Brecon in the Brecon Beacons National Park to Nantgarw near Cardiff. Now in its 12th year, this fully marked, one-way race features diverse landscapes, starting with dramatic m..

The Imber Ultra is an annual trail running event covering over 33 miles, organized by Avon Valley Runners and the Rotary Club of Westbury. Held in the scenic Wiltshire area, the race offers a challenging course with multiple checkpoints, attracting trail running enthusiasts seeking a long-distance a..

The Brecon to Cardiff Xtreme is a challenging 47.5-mile (75 km) winter mountain ultramarathon held in Wales, traversing 11 peaks from Brecon to Cardiff with approximately 2,680 meters of ascent. It demands excellent winter mountain running skills and fitness. The route starts at Brecon’s canal basin..

The Winter Green Man Ultra (Winter GMU) is a challenging ultra marathon held around Bristol, UK, featuring two distances: 45 miles and 30 miles. The 45-mile race is a full anti-clockwise loop of the Community Forest Path starting and finishing at Ashton Park School, with 3100 feet of elevation gain...

The Hateful 8 Ultra Loop is an endurance running event held at Bridgend Miniature Railway in Aberkenfig, Bridgend, South Wales. Participants tackle a challenging 9-mile mixed terrain loop featuring a tough hill, scenic road sections with stunning views, and a technical downhill forestry trail. Runne..

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 Forest of Dean Spring Trails Half Marathon is a scenic 13.1-mile race held annually in the Forest of Dean, starting and finishing near the Speech House Hotel. The course features well-maintained woodland trails with gentle inclines, offering a multi-terrain experience through beautiful forest la..

The Red Warrior Annual Multi Terrain Races take place at Margam Country Park in the UK, offering challenging 5K, 10K, and 20K distances. The event features separate races for solo runners and canicross participants, allowing runners to compete alongside their dogs. Known for its rugged and varied te..

The Bath 50 Ultra Challenge is a premier trekking and trail running event held in the historic city of Bath, UK. Participants can choose from 50 km, 29 km, or 10 km looped routes starting and finishing at Bath Racecourse. The course offers scenic views including the Royal Crescent, River Avon, and s..

The Way of the Dead is a challenging 50k running event traversing Dartmoor from east to west, organized by Wild Running. Participants can compete solo or in pairs, with live GPS tracking and three checkpoints that also serve as feed stations. The route features minimal ascent of 1389 meters but requ..

The Bristol Trail & Ultra, held on 28 March 2026, is a trail running event in Bristol offering two distances: a 25km trail and a 55km ultra. Both races start and finish at Museum Square in the city center. The routes take runners through scenic woodland, riverside paths, parks, and disused railway l..

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

The Minster Challenge 2026, held in Axminster, Devon, offers three running distances: 12km, 5km, and a 3km fun run suitable for all ages. Organized by Ruby Red Running in partnership with Axe Valley Academy, the event features a challenging course with hills and mud, promising an engaging trail runn..

The Testway Ultra is a challenging ultra marathon held in Hampshire, England, featuring 40 and 50-mile distances along the scenic Testway footpath. The route stretches from the chalky downs near the Northern Hampshire/Berkshire border to the southern town of Totton in Southampton, showcasing picture..

The Pendine Sands Races, held at Pendine Sands beach in Wales, offer a unique running experience on firm sand famously used for land speed records. Scheduled for April 5, 2026, the event features multiple distances: 5k, 10k, Half Marathon, Marathon, and a new Ultra of 32.8 miles. All races follow th..