Trail Running calendar near Builth Wells 2025-2026

Run the scenic 361° Abersoch Half Marathon along the Llyn Peninsula, finishing with the final kilometre on Abersoch Beach amid cheering crowds. Part of the Abersoch Triple Crown, this seaside race blends road pace with coastal charm.

Brutal Extreme Triathlons in Llanberis, North Wales, combine a Llyn Padarn lake swim, a 28 mile bike loop over Pen y Pass and a mountain finish on Yr Wyddfa via the Llanberis Path. Solo and relay entries welcome for adventurous athletes.

Take on a 6.7 km loop at Wyre Forest with Lone Wolf Birmingham, running one lap each hour and as many laps as you like up to 24 hours. Wooden trophies and medals await finishers, with a cafe and relaxed event atmosphere.

Push your limits in the Trails & Tarmac Backyard Ultra near Crickhowell in the Black Mountains, running a roughly 4.2 mile loop that starts every hour. Be the last to complete a full loop to win and hit 32 miles to claim an ultra medal.

Run a scenic 47 mile route from Chipping Campden to Painswick along the Cotswold Way, with rolling hills and varied trails. Support stations, live tracking and a finishers medal help you tackle the 15 hour challenge.

Run the Cotswold Way Century, 102 miles of scenic, very hilly trail from Chipping Campden to Bath. Take up to 32 hours with aid stations, live tracking and a buckle for finishers.

Race scenic trails at Margam Country Park with castle views on a 5K or 10K loop. Fully marked and marshalled with chip timing, water stations and a finisher medal, ideal for new and experienced runners.

Run through ancient woodland in the Forest of Dean at the Autumn Half Marathon starting and finishing at Speech House. This scenic 13 mile trail on well marked tracks supports local charities and awards a medal to every finisher.

A challenging 10 km uphill only race from Ruthin to the Jubilee Tower on Moel Famau, finishing above 550 m with sweeping hilltop views. Open to walkers and hill runners, it pairs a tough ascent with a memorable mountain finish.

Tackle a 50 km trail through the Cambrian Mountains near Lake Vrynwy at the Loop Ultra, a supported and fully marked race. Limited to 100 runners, the event blends rugged trails with camping, music and strong on course support.

RunThrough UK invites runners to the Cannock Chase Running Festival at Birches Valley, a scenic forest course offering half marathon, 10K, 5K and junior races. Expect chip timed results, themed medals and a lively event village.

Twin Peaks & Ras Consti in Aberystwyth is a scenic coastal race mixing paths, roads and rocky climbs. Seniors run 11.7 km with climbs of Pen Dinas and Constitution Hill while juniors race shorter routes finishing on the promenade.

Run scenic trails at Loggerheads Country Park with Loggerheads Autumn Trails, featuring 6 km, 12 km and canicross options for all abilities. Family friendly, fully marked routes and no time limits make for a relaxed autumn run.

Tackle the Brenig Way 50 km trail, a scenic endurance run from Corwen to the dam at Llyn Brenig through forests, riverside paths and technical climbs. Electronically timed with GPS trackers and aid stations, it is a rugged yet well supporte..

Blaze the Biblins is a lively 6 miles trail race through ancient woodland, riverside paths and historic ironworks, featuring climbs and technical single track. Enjoy prizes, a memento and post race tea and cake; entries are limited.

Creepy Crawl on 21 October 2026 at Pengethley Manor offers 5k to ultra distances on a challenging off road loop through hills and two vineyards. Ideal for runners and walkers craving a scenic, gritty test of endurance.

Explore the dramatic South West Coast Path across Exmoor with a range of coast races from a challenging 110 mile test to shorter 38 to 110 km options, all self navigated with GPS support. Expect rugged cliffs, estuaries and long coastal woo..

Take on NIGHT DESCENT 32 Ultra, an overnight staged 32 miles around Bridgend split into four progressive stages. With aid stations, gear drop and a buzzing base camp, this event blends challenge and camaraderie under headlamp light.

Take on the Nightmare Before Xmas Trail ½ Marathon on 19 December 2026 at Bridgend for a festive, muddy trail challenge with technical climbs and scenic road sections. Limited to 70 places, with a bespoke medal, mince pies and prizes for be..

The Birmingham Black Country Half Marathon is a running event held in the Black Country region near Birmingham. Organized by StuWeb Events Ltd., the race covers the half marathon distance of 13.1 miles. While specific details about the cour..