Trail Running Calendar Wales 2025-2026

Ultra Trail Snowdonia by UTMB invites trail runners to tackle technical mountain routes across Snowdonia from 15 to 17 May 2026. Choose from four challenging distances for a world class mountain running experience.

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.

Coastal trail running weekend along Pembrokeshire Coast Path finishing on a cliff top campsite at Dale with sea views. Distances from 22 to 100 miles, onsite camping, food and full race support for a memorable seaside challenge.

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.

Tackle the Severn Challenge: a five day, roughly 220 mile multiday ultra along the Severn Way from source to sea, testing navigation and endurance. Enjoy nightly hotel stops, baggage transfers and collectible stage medals that form a jigsaw..

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.

Take on Yr Wyddfa in Snowdon24, a 24 hour ultra trail challenge from Llanberis where runners aim to climb and descend Snowdon as many times as possible. Solo and team entries welcome, with full support, tracking and stunning mountain scener..

Join the Gower Peninsula Ultra Challenge for a weekend of scenic coastal, moor and woodland trails from Penrice Castle on 18 and 19 July 2026. Distances range from 10 km to 100 km on figure of 8 and loop courses with camping and full suppor..

Take on coastal trails at Merthyr Mawr Warren National Nature Reserve on 18 July 2026 with 12K, 40K and family races like Bunny and Toddler Dash. Expect sand dune descents, river crossings and dramatic cliffside views for a true Welsh trail..