Trail Running calendar near Narberth 2025-2026

We have found 88 Trailruns within 80 miles of Narberth. See below where and when you can find the races.

Trails & Tarmac Backyard Ultra Winter sends runners on a scenic 4.17 mile loop in the Black Mountains, blending trail and tarmac with a touch of climbing. Complete a loop each hour; reach 32 miles for a medal and outlast everyone to win.

March 2026

The Brecon to Cardiff Classic is a 70-kilometer ultra running race following the scenic Taff Trail from Brecon in the Brecon Beacons National Park to Cardiff. Now in its 12th year, this fully marked, one-way race features diverse landscapes..

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.

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..

Take on the Hateful 8 Ultra Loop, a 9 mile loop at Bridgend where runners log as many laps as possible in an 8 hour challenge. Mixed terrain with steep climbs and technical forestry descents makes every loop a true test of grit and strategy..

Run the Nant Yr Arian Silver Trail on 14 March 2026 across scenic Cambrian Mountains, with a half marathon, 10 km and junior races for all ages. Enjoy an event village, charity support and great mountain views.

Take on the Beast of the Blacks in the stunning Black Mountains of Wales with 11, 20 or 40 mile trail options, fully marked and well supported. Canicross friendly and rich with aid stations and great views for all abilities.

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 the iconic Pendine Sands on 5 April 2026 with distances from 5k to ultra across a flat, marked out and back beach course. All finishers earn a bespoke Pendine medal and top men and women take home trophies.

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.

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..

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.

Run across Cornwall from Boscastle to Looe on this supported self navigation trail through Bodmin Moor, tors and coastal scenery. Part of the Saints & Smugglers 100 Mile Challenge, it features checkpoints, GPS tracking and a seaside finish.