Trail Running calendar near Narberth 2025-2026

We have found 81 Trailruns within 80 miles of Narberth. See below where and when you can find the races.

Brecon to Cardiff Xtreme is a winter mountain ultramarathon, a 75-km linear challenge from Brecon to Cardiff (about 47 miles) with roughly 2,700–2,800 m of ascent, including 11 summits such as Pen y Fan, Cribyn and Fan y Big. The Taff Xtrem..

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.

Enjoy scenic trails at Nant Yr Arian on 14 March 2026 with half marathon, 10 km and junior races. Waymarked routes, marshals and a village with food and coffee make this charity trail a great day out.

Tackle forest trails, summits and river crossings at The Beast of the Blacks in the Black Mountains on 14 March 2026. Routes from 17 km to 65 km suit casual runners and hardcore trail fans and dogs are welcome.

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.

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 around Devon estates with steep hills, woods and river crossings, or join the family friendly Templeton 5 km fun run. Event at Templeton Village Hall on 29 March 2026.

April 2026

Event overview The Dyfi Half takes place in Aberdyfi on Sat 04 Apr 2026. The event offers a half marathon and a marathon (run as two laps of the half). The half is an Index Race in the UTMB 20K category. The first 20 places are offered at a..

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.

Steaming to the Coast is a unique trail running event held along the scenic West Somerset Railway in Minehead, Somerset. Utilizing the UK's longest standard gauge steam railway, participants ride a steam train from Minehead to Bishops Lydea..

Vale Coastal Races is the Vale of Glamorgan Ultra and Coastal Races, three trail distances along the Vale of Glamorgan coast in south Wales. The Ultra covers 32.5 miles along the Wales Coast Path from Penarth Pier to Ogmore-by-Sea; the Vale..

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.

Take on a 39.7 mile ultra along NCN 8 from Glasbury to Merthyr Tydfil in Mount to Coast Afanc. Only 40 places, mandatory kit and live tracking make this a rugged test of endurance that rewards every finisher with an Afanc medal.

Tackle scenic but rugged trails across the Brecon Beacons with 10, 20 or 40 mile options from Gilestone Farm. Expect steep climbs, varied terrain and well stocked checkpoints for a challenging, well supported day on the hills.

Experience a weekend of mountain running and walking in the Black Mountains and the Forgotten Landscape near Abergavenny on 18 and 19 April 2026. Choose 50, 30 or new 20 mile routes with stunning climbs, historic trails and a canal finish.

Experience the first edition MTC Y Draig Goch, a scenic 34.8 mile ultra from Merthyr Tydfil to Barry Island on 19 April 2026. Entries are limited and finishers earn a medal, so sign up for a memorable Welsh coastal challenge.

Tackle coastal trails at Little Haven, Pembrokeshire on 25 April 2026 with distances from 10K to Ultra and panoramic sea views across Britain’s only coastal national park. Part of the Endurancelife season, the race features marked course, t..

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.

May 2026

Rasus y Bannau is a tough trail in the Brecon Beacons with marathon and ultra options up to 100K across scenic ridges. Expect marked routes, checkpoints and mountain safety on May 2 and 3 2026.