Trail Running calendar near Builth Wells 2025-2026

We have found 256 Trailruns within 80 miles of Builth Wells. See below where and when you can find the races.

Challenge yourself on a 32 mile loop in the Black Country, starting and finishing at Baggeridge Country Park on 29 March 2026, solo or in teams of two or four. The mostly traffic free route follows canal towpaths and tunnels and finishes wi..

Join a guided recce and fun run across the wild Carneddau from the Ogwen Valley to Capel Curig, tackling 16 km of rugged terrain and dramatic mountain scenery. Small groups led by Mountain Leaders provide guidance and local knowledge.

Run Upcote Spring Trail is a limited entry 5 mile off road route around Upcote Farm near Cheltenham, featuring forest tracks, climbs and scenic Cotswolds views. Expect chip timing, medals for all finishers and a friendly festival vibe.

Take on the finale of the Shropshire Winter Series at Ercall Wood, a tough 8.8 km fell race climbing 519 m on scenic Ercall Hill. Pre entry or on the day entries accepted and junior races run for ages 12 to 17.

April 2026

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

UTMB Index

Inaugural BOWUM on 4 April 2026 from Monmouth: a 30 mile circular ultra across the Borderlands of Wales. Mostly trail, with scenic castle views on parts of the Three Castles Walk and Offa's Dyke Path, three manned checkpoints and a finisher..

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.

Join the Chasewater Easter Egg Challenge on 05/04/2026 for scenic undulating multi terrain runs around the reservoir, with distances from junior to 20k. Dress as an Easter character and enjoy a bespoke medal, free photos and prizes.

Steam to the coast then run back to Minehead along scenic trails and the ridgelines of the Quantock Hills. Choose 11 km, 11 miles or the 26.2 mile marathon as heritage steam trains ferry runners to their starts.

Discover the Vale Coastal Races on 11 April 2026 with 32.5 mile ultra, 18.5 mile and 10 mile trail options. The Wales Coast Path hugs cliffs, beaches and coves, finishing at Ogmore by Sea with marked notes and checkpoints.

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 scenic 28 km fell race around Llangollen with 915 m of climb, a true test of stamina and navigation. Finishers enjoy a memento plus post race cakes and drinks at HQ.

Ogwen | Yr Helgi Du 2026 is a skyrunning style mountain trail race on April 12 at Plas y Brenin, Capel Curig, weaving technical ridges across the Carneddau and Glyderau. Expect tough terrain, stunning views and a lively event village.

UTMB Index

Tackle The Big Cheese, a 15 mile off road fell race across the Mendip Hills with over 2,000 feet of climbing. Enjoy a fully marked course, finishers medal and tea and cake to celebrate at the finish.

Take on the Wild Horse 200 series and run 200 miles across unforgettable Welsh trails and mountains. Pick the South Wales route finishing at Worms Head in April 2026 or the Mid Wales loop starting and ending in Machynlleth in June 2026.

Take on the inaugural MTC Gelert 47 mile ultra from Barmouth to Llanidloes on 16 April 2026, the third day of the MTC CYMRUN end to end. Limited field, bespoke medal for all finishers and real time tracking for supporters.

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.

Explore the wild beauty of the Shropshire Hills while supporting Grow Cook Learn at the Shropshire Way 80K Festival. Choose from 6.5 mile, 13 mile, 26 mile or epic 50 mile routes that climb summits, pass hillforts and ancient woodlands.

Tackle a guided 18 mile trail run along the Malvern Hills ridge, with over 1300 m of climbing and spectacular views. This group run by Running Adventures suits fit runners comfortable at steady 10 minute mile pace and includes kit guidance.

Tackle rugged trails across the Brecon Beacons at The Beast of the Beacons, held at Gilestone Farm near Llangynidr on Saturday 18 April 2026. Choose 16 km, 32.5 km or 65 km routes with stocked aid stations, camping and full race support.