Trail Running Calendar Wales 2025-2026

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 iconic Paddy Buckley route over the Hebogs, a 15 km leg with 1,580 m of ascent near Beddgelert in North Wales. Small groups led by experienced mountain leaders share route tips and local knowledge.

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.

Challenge yourself on the OTT Marathon and 10 Mile Race through the stunning Brecon Beacons on 16 May 2026. Both start and finish at Parkwood Dolygaer on scenic but testing looped routes with mountain climbs and great views.

Take on the True Grit Trail Marathon, a 26.2 mile mixed terrain challenge through Bedford Park and the Celtic Trail near Bridgend on 16 May 2026. Expect steep climbs, technical underfoot sections, five feed points, a finisher medal and just..

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.

Explore the stunning Pembrokeshire coast at this trail and ultra running festival from 5 to 7 June with distances from 22 mile to 100 mile. Clifftop finishes, camping and coastal views make it a memorable challenge for ambitious runners.

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.

Tackle all 15 Welsh 3000s on this guided mountain run through Snowdonia, an epic 30 mile route with around 4,000 m of ascent. Led by qualified guides with transport and support provided, this is a supported adventure not a race.

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.

Run a five day, 220 mile ultra along the River Severn, following the Severn Way with rugged, sometimes overgrown trails and GPX navigation provided. Each day is a separate race with bespoke medals and a big trophy for completing all five.

Take on the scenic 48 mile MTC Severn Plod Ultra from Mid Wales to Shrewsbury on 9 July 2026, celebrating its 10th edition with challenging trails and sweeping views. All finishers earn a bespoke medal and starters get a free MTC visor.

Run through the wild beauty of Eryri at the Snowdonia Trail Marathon in Llanberis, with distances from 10K to a 57 km ultra offering panoramic climbs and rugged trails. Enjoy a lively event village, chip timing, and support on course.