Trail Running calendar near Cardiff 2025-2026

Run through two restored railway tunnels near Bath on scenic, mostly tarmac routes that suit fun runners and challengers alike. Distances range from 500 m to 50 km with relays and marathon options, and the event supports Sustrans with donat..

Ironwood Challenge is a scenic six mile trail through ancient woodland and hilly fields above Long Ashton, with mixed terrain and famously muddy sections. Chip timed, the race offers post run cake and supports Wellspring Counselling.

Join the 10th Hameldown Hammer at Widecombe in the Moor on Dartmoor, with ultra, half and 8 mile races over rugged ridges and big climbs. Scenic, challenging trails, finisher medals and a cupless policy for a greener race day.

Experience coastal trails at Lulworth Cove Trails on 28 February 2026, with stunning Dorset coastline views and the charm of the Lulworth Castle Estate. Choose 10K, 27K or 50K routes featuring rugged trail sections, climbs and classic count..

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..

The Weymouth Bay 10K is a scenic charity fun run held in Weymouth, Dorset, starting at Bowleaze Green near the Riviera Hotel. The course is an accurately measured out-and-back route featuring two laps, extending towards Pleasure Pier and re..

The St David's Day Dragon Run 2026, organized by Saturn Running, takes place in the scenic Dare Valley Country Park in Aberdare, Wales. This 7-hour time challenge allows participants to run distances of their choice, starting from a minimum..

Up on the Downs, hosted by Tri-Counties Trail Running, takes place at Breamore House near Salisbury. Runners can choose from 5k, 10k (about 11.5k), or a half marathon, all starting and finishing at Breamore House. The route is mainly trail,..

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 rugged Imber Ultra, a 33.5 mile multi terrain trail around Salisbury Plain starting from Westbury. This charity fundraiser on 1 March 2026 follows the Imber Range Perimeter Path clockwise and welcomes adventurous trail runners.

Tackle the Winter GMU around Bristol on the Community Forest Path with 45 mile and 30 mile options on scenic self guided routes. Chip timing, well stocked checkpoints and a technical finishers T shirt and bespoke medal await.

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 through ancient New Forest woodlands, heath and meadows with 10km, 15km and 22km route options. Dog friendly, with canicross categories, chip timing and medals.

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.

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.

Join the 6th Red Warrior at Margam Country Park on 22 March 2026 for challenging multi terrain races. Choose 5K, 10K or 20K with separate categories for canicross and solo runners and grab a 10% early bird discount with code RWEB.

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.

The Way of the Dead is a challenging 50k running event traversing Dartmoor from east to west, organized by Wild Running. Participants can compete solo or in pairs, with live GPS tracking and three checkpoints that also serve as feed station..

Run scenic off road trails through Escot Park near Ottery St Mary with short climbs and some muddy sections. Choose a 10K or a two lap half marathon with canicross categories for dog and handler teams.