Trail Running calendar near Swansea 2025-2026

We have found 169 Trailruns within 80 miles of Swansea. See below where and when you can find the races.

The Wild Horse South Wales 200 is an epic 200-mile ultramarathon traversing the scenic trails and mountains of South Wales. The course begins in Chepstow and finishes at Worm’s Head, following iconic routes such as Offa’s Dyke, the Beacons Way, the Heart of Wales Line, and the Wales Coast Path. This..

The MTC Gelert is a 47-mile ultra marathon held in Wales, running from Barmouth to Llanidloes along the scenic National Cycle Route 8. It forms Day 3 of the six-day CYMRUN, part of the Mount to Coast End to End Challenge Series, which celebrates Welsh myths and legends. The route features significan..

The MTC Afanc is a challenging 39.8-mile ultra marathon held in Wales, starting at the River Wye Activity Centre in Glasbury and finishing at Merthyr Tydfil. The entire route follows the scenic National Cycle Route 8, offering runners a spectacular course with an ascent of over 4,200 feet and descen..

The Beast of the Beacons is a challenging trail running event held in the stunning Brecon Beacons National Park, starting and finishing at Llangynidr Village Hall. Scheduled for April 18, 2026, it offers three distances: 10, 20, and 40 miles, with elevation gains up to 8,438 feet on the longest cour..

The Shropshire Way 80K Festival is a challenging trail running and walking event held in the scenic Shropshire Hills, England. Taking place in early April, it attracts hundreds of participants who experience the area's rich food, history, and landscape. The festival features multiple distances: the..

Cymoedd Sir Fynwy is a challenging mountain walking event organized by South Wales LDWA, held in Abergavenny, Wales. It features three distance options: 50 miles, 30 miles, and a new 20-mile route, all exploring the rugged terrain of the Black Mountains and the World Heritage Site of the Forgotten L..

The MTC Y Draig Goch is a challenging 34.8-mile ultra running event held in Wales, starting from Travelodge in Merthyr Tydfil and finishing at Marco's Cafe on Barry Island. It forms Day 6 of the six-day MTC CYMRUN, part of the Mount to Coast End to End Challenge Series. The route follows the scenic..

The Bath Beat is a walking and running event held on the southeastern edge of Bath, England, featuring distances of 12.5, 17, 21, and 26.5 miles. The course traverses the scenic countryside of the southern Cotswolds, including woods, hills, river valleys, farmland, and a historic disused canal. Part..

Endurancelife's Pembrokeshire event offers a stunning coastal trail running experience within Britain's only coastal National Park. Participants can choose from 10K, half marathon, marathon, and ultra distances, ranging from 7.5 to 34.7 miles, featuring challenging, undulating terrain across grass,..

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The Malvern Hills 18 Miler is a guided trail running event organized by Running Adventures, taking place in the scenic Malvern Hills, UK. The route covers approximately 18 miles with over 1300 meters (4400 feet) of elevation, traversing the Malvern ridge and visiting all its summits. Runners experie..

The Butcombe Trail Ultra is a challenging trail ultramarathon held in the Mendip Hills, an Area of Outstanding Natural Beauty in the UK. It features two race distances: 50 miles and 50 kilometers, both self-navigation events that follow a mostly off-road route around six pubs, offering stunning coun..

Saturn Running's "The Nearly But Not Quite London Marathon - Wales" takes place at Dare Valley Country Park in Aberdare. This inclusive event offers runners the flexibility to choose their distance within a 7-hour time challenge, with laps of approximately 4.37 miles (7km) on well-maintained footpat..

May 2026

The East Devon Round is a challenging trail running festival held in East Devon, near Honiton, featuring ultra-distance races through stunning countryside. The main event covers approximately 68 miles with over 10,800 feet of elevation, passing through three National Landscapes, the Jurassic Coast W..

Rasus y Bannau is a challenging long-distance running event held in Brecon, Wales, featuring three race options: a 100 km ultra with 5100m ascent, a 75 km ultra with 3500m ascent, and a marathon of 43 km with 2000m ascent. All races start and finish in Brecon town center, traversing the scenic and r..

The Westcountry Ultra Flat 50 is a 50-mile point-to-point ultramarathon held in Somerset, England, ideal for first-time 50-mile runners or those seeking a fast race. The course features a pancake-flat first half along the Taunton to Bridgwater Canal Path and the River Parrett Trail, with opportuniti..

The Tenacious Ten Endurance Challenge is a demanding 10-hour loop race held at Mynydd Troed in the Black Mountains of Wales. Participants tackle a strenuous and technical 3.2-mile (5.1 km) loop featuring a tough climb to the summit with stunning 360-degree views of the Black Mountains, Brecon Beacon..

The Westcountry Ultra Hilly 50 is a challenging 50-mile ultramarathon held in Somerset, England, starting and finishing at West Somerset College in Minehead. Featuring 7,337 feet of elevation, the course offers stunning scenery including ancient woodlands, rugged coastline, moorland, and picturesque..

The Westcountry Ultra 100 Miler is a challenging ultramarathon held in Somerset, UK, combining the Flat 50 and Hilly 50 routes into a 100-mile race with 9,538 feet of elevation. The course features diverse landscapes including canal paths, coastal trails, limestone formations, and Somerset’s highest..

The Sid Valley Ring Half Marathon, held in Sidmouth, Devon, follows the scenic Sid Valley Ring walking route. The 22km course features an uphill start, traversing quiet country lanes, footpaths, and picturesque villages such as Sidbury, Harcombe, and Salcombe Regis. Runners experience challenging cl..

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 and..

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