Trail Running Calendar Wales 2025-2026

Take on the HOWUM 2026 30 mile trail ultra around Llanidloes, following scenic paths past reservoirs, the Severn source and historic waymarked trails. With no time limit and three supported checkpoints this is a wild friendly challenge.

Join a guided Paddy Buckley recce and fun run across the Moelwyns from Capel Curig to Nantmor on 3 May 2026, covering about 35 km with 2,500 m of ascent through stunning Snowdonia scenery. Small groups and experienced Mountain Leader guides..

Take on Offa's Dyke in 24 Hours South, a continuous 24 hour challenge from Prestatyn heading south along the National Trail. Solo runners or teams of 2 to 4 can run or walk, aiming to reach the furthest point south when time elapses.

Epona 100 is a bold 100 mile trail race from Abergavenny that links Offa's Dyke, the Cambrian Way and the Beacons Way across roughly 17,000 ft of ascent. Expect rugged trails, aid station support and a generous 50 hour time limit.

Tackle rugged trails and sweeping views in the Preseli Beast, a trio of off road fell races across the Preseli hills in West Wales visiting Foel Cwmcerwyn and wild valleys. Next event Saturday 9 May 2026, entries open December 2025.

Join a guided recce of the Paddy Buckley leg from Nantmoor to Beddgelert in Snowdonia. This 15 km, 1,580 m ascent route is run in small groups led by experienced Mountain Leader qualified guides for a scenic, challenging day.

Ultra Trail Snowdonia by UTMB returns to Llanberis, North Wales as part of the UTMB World Series. Tackle epic 100 mile and 100 km routes or choose shorter 50 km and 25 km options across dramatic Snowdonia mountain trails.

Take on the OTT Marathon through the stunning Brecon Beacons on 16 May 2026, tackling iconic climbs past Pen y Fan on a challenging looped trail. A 10 mile option offers a shorter taste of the same wild, scenic terrain.

Tackle the True Grit Trail Half Marathon, a rugged 13.1 mile route through quarry, forestry and mud around Bedford Park. With only 50 places, tough climbs including Mount Mayhem, and a bespoke finisher medal, it is a raw, rewarding trail ch..

Take on the Rocky at 50 Run Wales, a relaxed 7 hour time challenge at scenic Dare Valley Country Park where you pick your distance from a 3 km minimum up to 50 km. Finishers earn themed medals and enjoy tasty aid station treats.

Pembrokeshire Coastal Races is a spectacular trail and ultra running festival along the Pembrokeshire Coast Path from 5 to 7 June 2026. Choose distances from 22 miles to 100 miles and finish on a dramatic cliff top at Dale.

Run 40 mile along the Wales Coast Path from Porthcawl to Penarth, enjoying golden beaches, cliffs, Ogmore Castle and stepping stones. Staffed checkpoints, medals and no time limit make this a relaxed coastal challenge.

Run the Brecon Beacons at Midnight Mountain Marathon on June 6, 2026, starting in daylight and finishing under the stars, so some may need a torch. Take part in Marathon, Half Marathon or Bergen pack races and earn a medal and a mug of tea.

Take on the epic guided Welsh 3000s Ultra Run in Snowdonia, crossing 15 peaks over roughly 30 miles with 4,000 m of ascent. This non competitive, fully supported mountain challenge includes guides, transport and food stations.

Join a guided recce of the Paddy Buckley Snowdon leg in scenic Snowdonia, a challenging mountain run led in small groups by experienced mountain leaders. Expect technical terrain, big climbs and stunning views with expert route advice.

Tackle 51 miles of rugged trail through Southern Snowdonia, summiting peaks near Cadair Idris and Rhinog Fach with nearly 2900 m of ascent. Limited to 500 runners, an epic mountain challenge with checkpoint support and live GPS.

Run the scenic Lake Vyrnwy 10k on 21 June 2026, a mixed terrain trail around the picturesque Llanwddyn estate with climbs and fast stretches. Enjoy a lively finish and a commemorative medal for all finishers.

Run the scenic Lake Vyrnwy 10k on 21 June 2026, a mixed terrain trail around the picturesque Llanwddyn estate with climbs and fast stretches. Enjoy a lively finish and a commemorative medal for all finishers.

Tackle a 30 mile ultra around Abergavenny, climbing Sugar Loaf and 5,000 feet of scenic mountain trails. Professionally organised with fully manned checkpoints, crew support and a memorable post race medal.

Take on the MTC Hafren Ultra, a scenic 27 mile point to point run over Plynlimon to the source of the River Severn and finishing in Caersws. Expect big climbs, technical river paths and sweeping upland views.