Trail Running calendar near Builth Wells 2025-2026

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..

Tackle undulating trails, muddy paths and a shallow stream crossing on an adventurous six mile route at Baggeridge Country Park. Join the Action Heart Tuff Un on 1 March 2026 to test yourself and support a West Midlands cardiac charity.

Tackle the Winter GMU, a scenic winter ultra around Bristol along the Community Forest Path with 45 mile and 30 mile options. Self navigated with checkpoint support, it rewards finishers with a technical tee and bespoke medal.

Tackle the Scott Sports Dirty Dozen, a 12 km loop through Cannock Chase on muddy trails with tough climbs and fast descents for an off road challenge. Family friendly with a short U14 course, free camping and parking and post race photos.

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..

Explore riverside paths and rocky trails at Loggerheads Country Park with 5 km, 5 km canicross and 10 km options on 7 March 2026. Varied terrain, steps and scenic views make this a fun and rewarding challenge for runners and their dogs.

The CODopoly Triple is a friendly multi day running event in Shropshire where you can run one, two or all three days. Choose 8 mile, half marathon or marathon courses and soak up Ironbridge and south Telford views at The Unicorn Inn.

Join the Brynkinalt Running Festival on 14 and 15 March 2026 at the scenic Brynkinalt Estate for canicross Saturday and trail runs Sunday with 5k and 10k options. Expect estate footpaths, views, music, a finisher medal and podium prizes.

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.

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.

Run through ancient trees and rolling contours at the DirtRun Wyre Wizard Trail in Wyre Forest. Choose a 13 mile half marathon or 7.6 mile Super Seven for scenic trails, medals and on course support.

Run through pastoral trails at Hyde Hall Farm for the Moo Marathon experience with distances from 10k to ultra to suit every runner. Expect lap based routes, a bespoke finish medal and cupless aid stations.

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.

Run a scenic loop through the Forest of Dean on well maintained trails with gentle climbs. Officially measured and fully marshalled, this spring half hosts the British Trail Running Championships.

Join a guided recce of the Glyders between Llanberis and the Ogwen Valley, covering 15 km with 1,830 m of ascent in Snowdonia. Small groups led by qualified, experienced runners set out from Capel Curig for a rewarding mountain day.

The Moel Famau Easter 'Piece of String' Race is a fun and inclusive outdoor event held at the start of the Easter holidays. Participants can enjoy a scenic run on the region's popular hill, with routes ranging from 6 to 12 kilometers that a..

Beyond Bristol offers scenic 25 km and 55 km trail routes from Museum Square. Race under the Clifton Suspension Bridge, through Leigh Woods and along riverside and railway paths, with feed stations and a finisher medal.