Trail Running calendar near Builth Wells 2025-2026

We have found 240 Trailruns within 80 miles of Builth Wells. See below where and when you can find the races.

Run amid Bath's city sights and rolling countryside at the Bath 50 Ultra Challenge, based at Bath Racecourse. Choose from 50 km, 29 km or 10 km looped routes with full support, rest stops and finisher T shirt and medal.

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.

Join a guided recce of the Paddy Buckley Carneddau leg from Ogwen Valley to Capel Curig on Sunday 29 March 2026, tackling 16 km and 1,245 m of ascent. Run in small groups led by experienced mountain leaders who completed Paddy Buckley Round..

Challenge a scenic 32 mile loop from Baggeridge Country Park, largely traffic free along canals and old railways. Enter solo, pairs or team of 4, face the 2.7 km Netherton Tunnel with a head torch and finish with a medal and a beer.

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

Inaugural BOWUM is a 30 mile circular trail in Monmouthshire linking Skenfrith, Grosmont and White Castle via the Three Castles Walk and Offas Dyke Path. Enjoy rolling hills, well stocked checkpoints and no time limit.

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.

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..

The Llangollen Fell Race, hosted by Run Free Fell Runners in North Wales, is a popular annual event featuring two scenic routes: a challenging 17-mile course with 3000ft of elevation and a shorter 10-mile route ascending 1969ft. Both start..

Run wild ridgelines in Snowdonia at Ogwen | Yr Helgi Du on 12 April 2026, with 15K, 25K and an epic 40K across the Carneddau and Glyderau. Expect a lively event village, bilingual support and a Welsh slate memento.

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 MTC Gelert, a scenic one day 47 mile ultra from Barmouth to Llanidloes along National Cycle Route 8. With just 40 places, strict cutoffs and a bespoke finisher medal, this tough Welsh challenge is not to be missed.

Take on an 18 mile guided trail run across the iconic Malvern Hills, summit the ridge and enjoy woodland trails with an experienced coach leading at a social pace. Tickets are currently sold out.

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 the Shropshire Way 80K Festival through scenic hills, ancient routes and local food. Run or walk 10, 21, 42 or 80 km while supporting Grow Cook Learn.