Trail Running Calendar Wales 2025-2026

The Beacons Way Ultra is a stunning but demanding 100 km trail across the Brecon Beacons high ground including Pen y Fan. 24 hour cutoff and 250 places by application make this race ideal for experienced navigators with strong hill fitness.

Tackle an epic 100 mile ultramarathon across the Brecon Beacons National Park, summiting iconic peaks and crossing wild mountain trails. Limited to 250 runners with live GPS tracking and full checkpoint support, this is a true test of endur..

Ultra X Wales in the Brecon Beacons on 25 and 26 July 2026 offers trail races from 12 km to 110 km with aid stations along the routes. Camp on site, benefit from UTMB index status and GPS tracking for the 110 km, and earn a finisher medal.

Run your own race at Ooops I Ran It Again Wales, a 7 hour time challenge at Dare Valley Country Park on 25 July 2026. Pick any distance from a 3 km minimum to ultra and enjoy drinks stations, a cafe and a themed medal.

Take on the Pen Y Fan Challenge for a scenic trail run to the summit of the highest peak in South Wales, with 5 mile and 13 mile options for runners aged 16 or older. Expect chip timing, a finisher medal and a fully marshalled route.

Take on EDDUM 2026 on August 1, a 50 mile loop along the Epynt Way around the Sennybridge military training area, mostly trails with plenty of climbing. The supported route features five staffed checkpoints, no time limit and a relaxed fini..

The Brecon Beacons 51k will take place in Talybont-on-Usk on Saturday 8 August 2026.

Open to Offas on 8 August 2026 from Cilcain Village Hall invites runners and walkers to follow the Offa's Dyke Path over Moel Famau. Pick 16, 24 or 32 mile routes through the Clwydian Hills with checkpoints, refreshments and a joyful finish..

SkyRun Eryri brings classic Snowdonia skyrunning to Rhyd Ddu with four mountain trail races from a technical 55 km ultra to shorter scenic challenges. Expect rocky scrambles, grassy ridges and towering Welsh 3000s views.

Tackle rugged trails and dramatic escarpments at the Beast of Llangattock at Park Farm near Crickhowell, with distances from 10 km to a 51 km ultra. Expect steep technical terrain, well stocked aid stations and sweeping hilltop views.

Run point to point along the Cambrian Way into Cardiff with two scenic trail ultra options, 44 miles from Llanthony Priory or 33 miles from Abergavenny. Expect rugged fells, woodlands and a dramatic finish near Castell Coch.

Run Anglesey's rugged coast with Ring O' Fire 130, a 130 mile three day circumnavigation of the island with cliffs, beaches and about 4,000 m of ascent. Or try the Firelighter 50, a near 47 mile coastal challenge finishing in Moelfre.

Take on the RIDUM 30 mile ultra on September 5, 2026 exploring ridge top trails around the Rhymney Valley with big climbs and mostly off road terrain. Well stocked checkpoints and post race care await finishers.

Take on the Yr Wyddfa Snowdon Ultra 100, a 102 mile mountain ultramarathon across rugged Snowdonia with roughly 5,172 m of ascent and demanding self navigation. Limited to 250 runners, it features checkpoints, live GPS tracking and a 42 hou..

Take on the Yr Wyddfa Snowdon Ultra 50, a rugged 45 mile mountain ultra through iconic Snowdonia peaks including Yr Wyddfa and Tryfan. Expect big climbs, GPS tracking, strict kit rules and a limited field for a true high mountain challenge.

The Montane Dragon's Back Race will take place in Conwy from Monday 7 September 2026 to Friday 11 September 2026.

A guided mountain run in Snowdonia on 12 September 2026 visiting all 15 Welsh 3,000 ft peaks across about 30 miles and 4,000 m of ascent. This non competitive challenge includes experienced guides, transport and food stations.

Tackle The Relentless on 18 September 2026 at Bridgend Miniature Railway, a rugged 10 mile loop with big climbs and a full lap hub for crew, food and rest. Pick 50 mile or 100 mile and push your limits on this intimate ultra.

Run the scenic 13.1 mile 361° Abersoch Half Marathon on the Llyn Peninsula, finishing with a final kilometre across Abersoch Beach. Enjoy music, massages, beach bar and prizes plus medals and tech tees for all finishers.

Run the Pumsaint trail half marathon in Llanwrda, a scenic, hilly route through the Cothi valley that rewards effort with great views. Held each September from Pumsaint Village Hall, it is a perfect challenge for trail lovers.