Trail Running Calendar Wales 2025-2026

The Beast of Llangattock is a challenging trail running event held at Park Farm, Llangattock, Wales, offering four distances: 10km, 10 miles, 20 miles, and a 32-mile ultra. The course features stunning panoramic views of the Black Mountains, Sugar Loaf, and the Brecon Beacons, with varied terrain in..

Moel Famau 24 is a unique 12- or 24-hour endurance event held on the iconic Clwydian Hill of Moel Famau, featuring a challenging 7.2 km loop with 500 meters of ascent per lap. Participants, including solo runners and teams, aim to complete as many laps as possible within their chosen time frame. The..

The Beast of Bryn is a challenging trail running event held in Bryn, Port Talbot, South Wales, organized by the Bryn Residents Action Group (BRAG). Set in the scenic Afan Forest Park, the race offers two distances: a 6.5-mile (10.5 km) route with 288 meters of climb and a longer 10.5-mile (17 km) co..

The Wild Wolf of Radnor is a 10-mile trail race set in the stunning Radnor Forest in Mid Wales, an area steeped in local legend as the site where the last wolf of Wales was shot. The course features diverse terrains including forestry roads, open moorland, and muddy, tree-lined single tracks. Runner..

The Crickhowell 10km is a scenic running event held near Crickhowell, Wales, within the Brecon Beacons National Park. The race features a flat, out-and-back course along the Brecon & Monmouthshire canal, starting and finishing at Llangattock, with a turnaround point at Gilwern. Designed for runners..

The Black Cattle Ultra Gwartheg Duon is a challenging trail running event held in South Wales, starting at Cardiff Harlequins RFC. Participants can choose between two ultra distances: 44 miles from Llanthony Priory or 33 miles from Abergavenny. Both routes follow the scenic Cambrian Way to Cardiff,..

Ring O' Fire is a coastal ultra marathon event held on the island of Ynys Môn, featuring challenging endurance races such as the Ring O’ Fire 130 and the Firelighter 50. These races offer participants the ultimate coastal endurance challenge, traversing scenic and rugged coastal terrain. The event e..

Saturn Running's "Will Run For Ice Cream" event takes place in the scenic Dare Valley Country Park, Aberdare, Wales. This inclusive 7-hour time challenge allows participants to run or walk as many laps as they wish on a well-maintained 4.37-mile (7km) loop, with shorter options for younger runners...

The Montane Dragon's Back Race® is a legendary and grueling 6-day ultra running event covering 380 kilometers with 16,400 meters of ascent along the spine of Wales. Starting at Conwy Castle and finishing at Cardiff Castle, it is widely regarded as the world's toughest mountain race. The course chall..

The Dee Way 120 is a challenging ultra-distance trail race following nearly the entire 120-mile course of the River Dee from Llanwchllyn to Prestatyn in North Wales. The route traverses diverse and scenic landscapes, including valleys, historic villages, and coastal paths, offering breathtaking view..

The RIDUM is a 30-mile ultra marathon held in South East Wales, following the Rhymney Valley Ridgeway Walk. This challenging trail run features 4,252 feet of elevation, taking participants across ridge tops around the Caerphilly basin with stunning views of the surrounding landscape. The route inclu..

The RunThrough Snowdonia Sea2Sky Trail Races, held in September 2025 at Barmouth, UK, offer two challenging distances: 25k and 53k. Set in the stunning landscapes of Snowdonia, participants can enjoy breathtaking trail views while tackling a well-marshalled course with water stations. The event feat..

The Yr Wyddfa Ultra 50 is a challenging 45-mile ultramarathon held in Snowdonia National Park, Wales, starting and finishing in the picturesque village of Betws-y-Coed. Featuring 3,254 meters of ascent, the mountain trail course includes iconic landmarks such as Heather Terrace on Tryfan, the summit..

The Yr Wyddfa Ultra 100 is a challenging 102-mile ultramarathon held in Snowdonia National Park, Wales, featuring 5,788 meters of ascent across stunning mountainous terrain. The race starts and finishes in Betws-y-Coed and includes 10 well-supported checkpoints offering refreshments and medical aid...

The 2 Hillforts Hill Race is an exciting running event set to take place in 2024, starting and finishing at Plas Dolben Farm in Llangynhafal. Participants will tackle a challenging course that spans just under 9 miles, featuring a significant ascent of 2500 feet as it navigates the scenic Hillforts..

The Snowdonia Mountain Skills Weekend 2025 is a trail running event held in the Nantlle Valley within Snowdonia National Park, UK. Hosted by Running Adventures, the weekend focuses on advanced trail runners aiming to enhance their mountain running skills and safety knowledge. Participants experience..

The Trails & Tarmac Backyard Ultra, organized by Limitless Trails, takes place near Crickhowell in the scenic Black Mountains, Powys, UK. This endurance event features a 4.2-mile loop combining equal parts trail and tarmac, with mostly flat terrain, one gradual climb, and a short steep section, allo..

The The Brutal Extreme Triathlon will take place in Llanberis on Saturday 20 September 2025.

The Abersoch Half Marathon is a scenic 13.1-mile race held in the charming seaside village of Abersoch on the Llyn Peninsula, North Wales. The course primarily follows roads through the villages of Llanengan, Llangian, and Sarn Bach, culminating in an exhilarating final kilometer along Abersoch Beac..

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