Trail Running calendar near Narberth 2025-2026

We have found 83 Trailruns within 80 miles of Narberth. See below where and when you can find the races.

Take on the Brecon to Cardiff Xtreme, a rugged 75 km mountain ultra across 11 summits, or join the Taff Xtreme Marathon for the scenic second half of the route. Both routes finish at Coleg y Cymoedd and demand strong navigation and grit.

Join the St David's Day Dragon Run at Dare Valley on 1 March 2026, a relaxed seven hour challenge where you choose how many laps to run. Expect scenic trails, medals from 3 km and tasty goody bags with vegan options.

Nant Yr Arian Silver Trail Races on 14 March 2026 in the Cambrian Mountains with half marathon, 10 km and junior races. Organised by Aberystwyth Athletic Club as a not for profit race supporting charities, routes are waymarked with GPX.

Take on the Beast of the Blacks, a scenic trail running challenge through the Black Mountains of Wales with 11 mile, 20 mile or epic 40 mile options. Fully marked and well supported with checkpoints, camping, medics, canicross friendly faci..

Join the Dashing Dog Charity Run at Dare Valley Country Park for a 7 hour time challenge where you choose how many laps to run. Support local dog rehoming charities and enjoy scenic trails, medals and on course aid.

Finish the season with the final round of the West Glamorgan XC League at Gnoll Park, Neath on 15 March 2026, a testing 5 mile cross country hosted by Neath Harriers. Club only event with no on the day entries, registration opens 2 February..

Join the Red Warrior Challenge at Margam Country Park on 22 March 2026 for mixed terrain races offering 5K, 10K and 20K options. Solo runners and canicross teams welcome at this sixth annual celebration of trail fun and challenge.

Take on the Feighan Fury 10 mile trail through mid Devon woods, rivers and hills on 29 March 2026, with a 5 km fun run and walk for all abilities. Expect rugged scenery, on course support and a technical event vest for Fury finishers.

April 2026

The Aberdyfi Half Marathon will take place in Aberdyfi on Saturday 4 April 2026.

UTMB Index

Run Pendine Sands on firm beach along a scenic out and back course with distances from 5k to ultra. Finishers earn bespoke medals, category winners take trophies, and the event is cup free so bring a reusable cup.

Board a vintage steam train from Minehead and run back through the Quantock Hills and along rugged coastlines in Steaming to the Coast. Choose 11 km, 11 miles or a full marathon for a memorable seaside trail finish at Minehead station.

Pick 32.5, 18.5 or 10 mile coastal trail races finishing at Ogmore by Sea Village Hall. Run the Wales Coast Path past 19 beaches and miles of Glamorgan Heritage Coast cliffs, coves and rolling countryside for a memorable coastal challenge.

Enjoy stunning coastal, woodland and dune trails at Oxwich Bay with 5 km, 10 km or a self navigated half marathon. Part of the Run The Trails Series, the event is timed and all finishers receive a medal.

Inaugural MTC Afanc ultra on 18 April 2026 sends runners 39.7 miles along National Cycle Route 8 from Glasbury to Merthyr Tydfil. Expect rugged scenery, strict pacing and a hard earned Afanc medal at the finish.

Challenge yourself on the Beast of the Beacons, a trail ultra across the Brecon Beacons from Gilestone Farm on Saturday 18 April 2026 with 10, 20 and 40 mile options. Expect steep climbs, reservoir and ridge views, wildlife sightings and fu..

Discover the Black Mountains and World Heritage landscapes around Blaenavon on this LDWA long distance walk and run. Pick 20, 30 or 50 mile routes that tackle classic climbs, quiet valleys and canal side finishes.

Take on the inaugural MTC Y Draig Goch on 19 April 2026, a scenic 35 mile stage from Merthyr Tydfil to Barry Island along National Cycle Route 8. Limited to 40 entrants, all finishers earn a Y Draig Goch medal and top athletes win bespoke t..

Run coastal trails from Little Haven in Pembrokeshire National Park past cliffs, coves and sandy bays on exposed, undulating terrain. Choose 10K to ultra, score Endurancelife points and enjoy chip timing, a finisher medal and on site suppor..

UTMB Index

Take on Cadair X, a scenic mountain half marathon of 13.1 miles that climbs to the summit of Cadair Idris. Expect rugged trails, woodland and glacial lakes for a dramatic and rewarding mountain run.

Choose your distance in this 7 hour time challenge at scenic Dare Valley Country Park, with multi lap routes from 3 km up to 50 km. Enjoy on course snacks, vegan options and themed medals with distance pins.