Trail Running Calendar Wales 2026-2027

We have found 140 Trailruns in Wales. Check below where and when you can find the races.

A five day multistage ultramarathon along the River Severn of approximately 220 miles, each day run as a separate race with bespoke medals and shared hotel accommodation between stages.

A 48 mile point to point ultramarathon from Mid Wales Art Centre to Shrewsbury with four manned checkpoints, mandatory navigation and a required minimum average pace of 4.0 miles per hour. Finishers receive a bespoke medal and a complimenta..

Experience the landscape of Eryri National Park with a range of trail races from 10k to a 57km ultra marathon starting and finishing in Llanberis. Run through iconic Welsh landmarks with full course support and chip timing.

UTMB Index

A 24-hour UTMB-indexed trail on Yr Wyddfa (Snowdon) from Llanberis where individuals or relay teams try to complete as many ascents as possible. Distances include 50k, 100k and 100 mile options and the event supports charity fundraising.

Join the Butterfly Run at Parc Taf Bargoed with rock up and run starts across distances from 5 km to ultra on a scenic tarmac course with a short riverside trail. Staggered starts, aid stations and an optional supersized spinning medal awai..

Explore the limestone cliffs and golden beaches of South Wales in the Gower Peninsula Ultra Challenge. Choose from multiple distances between 10km and 100km with full support and camping at the historic Penrice Castle basecamp.

UTMB Index

Trail races on the private Merthyr Mawr Estate combine dune, hill and coastal terrain. Event options include a 12K, a new 40K and a selection of family races.

Cross all fourteen 3000ft peaks in Snowdonia on this guided 50km mountain challenge. Choose between a continuous 20-hour push or a two-day journey with expert leaders and full support.

Three point-to-point coastal races along the Wales Coast Path finishing at the Norwegian Church in Cardiff Bay. Routes feature beaches, dunes, cliffs and mapped GPS navigation with checkpoint support and live tracking.

UTMB Index

Test your endurance at this 12 hour night running event in Bridgend. Navigate forest trails and hills across multiple 10 mile loops starting at dusk and finishing at dawn.

Experience the woodland trails and lakeside scenery of Llys y Fran Lake in this professional series event. Featuring a timed path course through Pembrokeshire this trail run offers both ten and five kilometer distances.

Experience a guided three day journey through Northern Snowdonia covering 47 mountain peaks and 9000 meters of ascent. This fully supported 100 km loop offers a professional mountaineering experience in small groups.

A marked fell race in South Wales on 23 July 2026, covering 5.5 km with 315 m of climb. Entry on the day costs £3 and the minimum age is 16. Post race tea and cake are available; bring your own mug.

A 100 km route across the Brecon Beacons with 3178 m ascent, six staffed checkpoints and a 24 hour cut off. Entry by application on 25 July 2026 requires prior ultramarathon experience and competent map and compass navigation.

A 100 mile mountain ultramarathon following the Beacons Way National Trail through the Brecon Beacons. This self navigation race features over 6000m of ascent and passes the highest peaks in South Wales.

Experience the wild beauty of the Brecon Beacons with a range of trail races from 12km to 110km. This UTMB Index event offers multi-stage and single-day options through the rugged hills of Wales.

UTMB Index

Join this flexible 7 hour time challenge at Dare Valley Country Park where you can run or walk any distance from 3km to an ultra-marathon on scenic well-maintained paths.

Test yourself on the highest peak in South Wales with a 5 or 13 mile trail race up Pen Y Fan. This supported mountain event features chip timing, finisher medals, and routes through the scenic Brecon Beacons.

August 2026

Experience a 50 mile ultra marathon around the historic Epynt Way in Wales. This trail event offers 8,559 feet of elevation and scenic views of the Brecon Beacons without any time limits.

Discover the Rose Run with Phoenix Running South Wales at Parc Taf Bargoed, a scenic multi terrain out and back with a repeatable 5.3 km lap to build distances from 5 km to ultra. Rock up and run with staggered starts and limited spots.