Trail Running Calendar Wales 2026-2027

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..

A multi distance trail event on the Gower Peninsula on 18 and 19 July 2026, based at Penrice Castle with camping and full support. Routes include a 100 km figure of eight plus shorter loops, rest stops and GPS tracking.

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.

A guided mountain run or walk across Snowdonia to cover all 14 officially recognised 3000 ft peaks, offered as a 20 hour challenge or a two day option with low ratio qualified guides and on route 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.

A 12-hour, multi-loop running event on 18 July 2026 at Bridgend Miniature Railway featuring three 10 mile routes, mixed terrain, a 30-runner limit and results based on most loops completed.

A trail 10 km at Llys Y Fran on 19 July 2026 set around lakeside and woodland scenery as part of the RTT Series. The event includes chip timing, water stations and a fully marshalled route.

A professionally guided three day traverse of Northern Snowdonia covering 47 summits in just over 100 km with about 9,000 m of ascent. Small guided groups return to Capel Curig each night with on‑route support and refuelling.

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.

A 7 hour time challenge at Dare Valley Country Park where runners choose distance from 3 km to 50 km. Finishers from 3 km receive a themed medal and longer distances earn pins.

Trail runs around Pen Y Fan in South Wales on 26 July 2026, with 5 mile and 13 mile options. Entry includes a buff, medal and chip timing, and mandatory kit requirements vary by distance.

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.

Introduced in 2026, the Pembrokeshire Trail Run follows the Pembrokeshire Coastal Path from Freshwater East to Saundersfoot, offering 25 km and 14 km trail distances with GPX routes and stated entry prices.

A trail running event in the Brecon Beacons on 8 August 2026 offering 24K and 51K routes with marked kilometres, marshals, stocked aid stations, chip timing and a finisher medal. An event village provides food, drink and free race photos.

A long-established August event in NE Wales from Cilcain Village Hall offering 32 miles, 24 miles and 16 miles routes that follow the Clwydian Hills and the Offa's Dyke Path over Moel Famau. Walkers and runners are welcome.