Trail Running Calendar Wales 2025-2026

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 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 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 Pendine Sands Races, held at Pendine Beach in Wales, offer a unique running experience on firm, flat sand famously used for land speed records. The event features multiple distances: 5k, 10k, Half Marathon, Marathon, and a new Ultra of 32.8 miles, all run on a well-marked out-and-back course alo..

The Vale Coastal Races, held along the scenic Vale of Glamorgan coastline in Wales, offer three trail running distances: a 32.5-mile ultra marathon, an 18.5-mile "mini ultra," and a 10-mile race. The ultra race starts at Penarth Pier and follows the Wales Coastal Path, featuring clifftop trails, 19..

The Llangollen Fell Race, hosted by Run Free Fell Runners in North Wales, is a popular annual event featuring two scenic routes: a challenging 17-mile course with 3000ft of elevation and a shorter 10-mile route ascending 1969ft. Both start at Dinas Bran Leisure Centre and offer stunning views of Tre..

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..

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 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 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..

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 North Wales 50km & 100km is a scenic ultramarathon event along the North Welsh coastline, starting at the Nova Centre in Prestatyn and finishing in Bangor. The 50km route covers 53.8km with 2,700ft of ascent, reaching the beach at West Shore, Llandudno. The 100km course follows the entire North..

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,..

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..

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..

24 Hours South - The Offa's Dyke Ultra is a challenging 24-hour endurance event starting from Prestatyn on the North Wales coast, following the Offa's Dyke National Trail southwards. Participants, either solo or in teams of 2 to 4, aim to cover as much distance as possible along this scenic and dema..

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 MTC Hafren Ultra is a 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 challenging nearly four-mile mountain trek up Plynlimon, known as Wales' most dangerous mountain due to c..