Trail Running calendar near Haverfordwest 2026-2027

A multi-distance trek and trail event on the Gower Peninsula based at Penrice Castle, offering camping, GPS-tracked routes, covered rest stops, catering, medical support, and finisher rewards across several distances.

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 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 traditional off-road fell race on 19 July 2026 at Selworthy Beacon, about 4 miles with 1000 ft ascent and self-navigation required; entry is £12 for FRA members and £14 for non-members.

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 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.

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.

A Dunster basecamp event on 25 July 2026 with 50 km, 25 km and 10 km loop options across the South West Coast Path and Exmoor, featuring GPS tracking, covered rest stops, medical support and camping.

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.

Race The Train 2026 in Tywyn, Mid-Wales on 15 August 2026 offers multiple running distances from a 14 mile challenge to a Toddlers Trot, with specified age categories and entry fees; entries close 10 August 2026.

Great British Bake Run at Dare Valley Country Park pairs running with a baking competition and a cupcake magnet medal. Multiple distances and a 7 hour time challenge are offered, with aid tables, goody bags, parking and cafe facilities.

A children's fun run organised by Afan Valley Swimming Club on 23 August, covering approximately 1 mile of mixed grass and tarmac with uphill and downhill sections. Entry includes a finishers' medal and a bag of sweets.

A 10 mile trail race through Radnor forest in Mid Wales on 23 August 2026, held in aid of the Special Care Baby Unit in Hereford. The route reaches Black Mixen at 2130 ft and includes forestry roads, moorland and tree covered single track.

A fell race in North Pembrokeshire on Sat 29 Aug 2026 covering 8 km with 330 m of climb. Entries are accepted in advance and on the day, and junior Mochyn du races have entry on the day only.