Trail Running Calendar Wales 2025-2026

We have found 108 Trailruns in Wales. Check below where and when you can find the races.

Pen Y Fan Challenge is a trail race organized by OTT Events Limited set in the Brecon Beacons, featuring Pen Y Fan, the highest peak in South Wales (LD3 8NL). Runners choose between 5 miles or 13 miles, both routes signed and marshalled and including a summit finish. The entry includes a medal, buff..

August 2026

The EDDUM 2026 is a 50-mile trail challenge around the Epynt Way, staged by Pegasus Ultra Running. The route loops around the Sennybridge Training Area, one of the UK’s largest military training zones, tracing the boundary of the Epynt Way through Wales’ largely untouched countryside. Expect dramati..

Beast of Llangattock, held at Park Farm in Llangattock, Crickhowell, Powys, is a trail challenge by Limitless Trails. It offers four distances: 32 miles ULTRA (three 10-mile loops), 20 miles (two loops), 10 miles and a 10k route, with GPX file for the 10k. The route combines canal sections, fields a..

Black Cattle Ultra Gwartheg Duon is a South Wales ultra organized by Ridge Runners, offering two distances: 44 miles and 33 miles. Runners start from Llanthony Priory in the Black Mountains or from Abergavenny, following the Cambrian Way to Cardiff and finishing near Castle Coch in Cardiff. The rout..

September 2026

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..

Welsh 3000's Ultra Run is a guided mountain day in Snowdonia, North Wales. The route covers approximately 30 miles (50 km) and about 4,000 metres of ascent, linking the 15 Welsh 3,000-ft peaks across the Snowdon, Carneddau and Glyderau massifs, including the dramatic Crib Goch traverse. Run as a gui..

November 2026

Dawn Two Dusk, organized by Mad Running Junkies, is a 12-hour night-to-dawn endurance event staged at Bridgend Miniature Railway in Bridgend, South Wales (Fountain Road, Aberkenfig, Tondu). The format features three roughly 10-mile loop routes that participants can complete as many times as possible..

December 2026

Nightmare Before Xmas Trail ½ Marathon, organized by Mad Running Junkies, takes place at Bridgend Miniature Railway Centre in Aberkenfig (Tondu), near Bridgend. The course splits into an 8-mile opening section, The Hateful Eight, followed by roughly 5 miles of mud, water, hills, and a forestry trail..