Trail Running calendar near Cardiff 2025-2026

Endurancelife Exmoor is a challenging trail running event set in the rugged and scenic western area of Exmoor National Park, England. It offers four distances: 10K (6.3 miles), half marathon (13.3 miles), marathon (26.5 miles), and ultra marathon (31.8 miles), each featuring significant ascents rang..

The Epona 100 is a challenging 100-mile ultramarathon held in Abergavenny, featuring a demanding 17,000 feet of elevation gain. The course offers a stunning mix of iconic trails, including Offa’s Dyke, Cambrian Way, and Beacons Way, providing runners with breathtaking mountain passes and diverse ter..

The OTT Marathon & 10 Mile Race, held at Parkwood Dolygaer in Merthyr Tydfil, is a challenging mountain marathon set in the scenic Brecon Beacons. The marathon covers approximately 26.2 miles on a looped course featuring significant climbs, including Pen Y Fan, Fan Y Big, and Tor y Foel, with three..

The Jurassic Coast Ultra Challenge is a premier UK trail running and trekking event held along Dorset’s stunning World Heritage coastline. Participants can choose from multiple distances including 100km, 75km, 50km, 25km, and a 10km option in Bridport. The full 100km route starts at Corfe Castle, pa..

The TSUNAMI Ocean Trails is a challenging trail running event set along the rugged and remote North Devon and Cornish coastline in the South-West of England. Scheduled for June 6, 2026, it features three race distances: the 37.5-mile Ultra from Westward Ho! to Bude, the Marathon from Clovelly harbou..

BigSea Trails (WATER) is a trail running event held on the Isle of Purbeck, Dorset, starting and finishing on the sandy Knoll Beach at Studland. Part of the Classic Element Trail Series, this race celebrates the element of water with routes that showcase stunning coastal and countryside scenery, inc..

The Two Tunnels Races, held in Bath, UK, offer a unique running experience featuring the longest underground sections in the UK. The course passes through the historic Devonshire Tunnel (408m) and Combe Down Tunnel (1672m), both well-lit and surfaced, providing a flat and scenic route beneath the ci..

The Cotswold Way Ultra Challenge is a premier endurance event held in the scenic Cotswolds, starting and finishing at Cirencester basecamp. Participants can choose from multiple distances including 100km, 75km, 50km, 25km, and a 10km option, suitable for walkers, joggers, and runners of all experien..

Offa's Dyke 15 is a renowned off-road running event held in Hay-on-Wye, Hereford. The race covers a challenging 15-mile course along the historic Offa's Dyke path, offering runners a scenic yet demanding trail experience. Originally popular from 1977 to 2001, the event was revived in 2015 with the h..

The Cheddar Gorge Challenge is a demanding off-road running event held at Warren Farm, Charterhouse, Somerset, within the stunning Mendip Hills Area of Outstanding Natural Beauty. Offering distances from 1km fun runs to a full marathon, the course features diverse terrain including open fields, flat..

The Jurassic Coast 100 is a challenging ultra running event held along the UNESCO World Heritage Jurassic Coast in South West England. Participants can choose from multiple distances: 33 km (Beer to Exmouth), 50 km (Lyme Regis to Exmouth), 70 km (Poole to Weymouth), 100 km (Weymouth to Exmouth), and..

The Lundy Island Race, organized by OuterEdge Events, is a unique 13.5-mile trail running event held on the rugged and scenic Lundy Island in the Bristol Channel, UK. The course traverses the island’s pristine, wildlife-rich tracks, including the eastern coastal trail, western clifftops, and the cen..

The PIGUM 2026 is a thrilling 30-mile ultra marathon set in Abergavenny, known as the Gateway to Wales. This challenging trail run features 5,000 feet of elevation, taking participants over mountain peaks and scenic trails, including the iconic Sugar Loaf mountain, which offers stunning panoramic vi..

The Severn Challenge is a grueling 220-mile, five-day multistage ultra marathon in the UK, following the longest riverside path from the source of the River Severn in Wales to its mouth. The race is divided into five unique stages ranging from 26 to 59 miles each, with a total ascent of over 3,000 m..

The MTC Hafren Ultra is a challenging 27-mile point-to-point ultra marathon held in Wales, starting at Rhyd-y-benwch picnic area and finishing at the Mid Wales Arts Centre in Caersws. The race begins with a demanding nearly four-mile mountain trek up Plynlimon, known as Wales' most dangerous mountai..

The MTC Severn Plod Ultra is a challenging 48-mile point-to-point ultra marathon starting at the Mid Wales Art Centre in Maesmawr and finishing in Shrewsbury. The scenic route passes through diverse landscapes including Holly Bush, Rhyd-y-felin, Dolerw Park, the Gorsedd stone circle, Montgomery Cana..

The Black Mountains 50 is a challenging ultramarathon event held in the scenic Black Mountains within the Brecon Beacons National Park, starting and finishing at Longtown Hall, Herefordshire. Scheduled for July 11, 2026, it offers multiple distances: 50 miles (80 km), 32 miles (50 km), a marathon (2..

The MTC Severn Way Ultra is a 57-mile point-to-point ultra marathon held in the UK, starting at Travelodge Worcester and finishing at Travelodge Stonehouse. The course follows the scenic Severn Way, passing through towns like Upton-on-Severn, Tewkesbury, Gloucester, and several riverside villages. T..

The 24 Cider Challenge is a 24-hour solo running or walking event held at Myncen Farm in Blandford Forum, Dorset. Set on a privately owned farm, the course features undulating trails through fields, grass, wildflowers, crops, and dusty tracks, offering a scenic and natural running experience. Partic..

Dusk Till Dawn in Bridgend, South Wales, is a challenging 12-hour running event organized by Mad Running Junkies. Participants run three different 10-mile mixed terrain loops, including hills, forestry trails, and technical sections, aiming to complete as many laps as possible from dusk until dawn...