Trail Running calendar near Merthyr Tydfil 2025-2026

Event overview DirtRun Dudmaston 10k takes place on 1 February 2026 at Comer Woods, part of Dudmaston Estate. The event uses an off-road route around tracks and trails in Comer Woods and covers 10 km. All finishers receive a medal and finis..

The Westonbirt Arboretum Winter Night Race is a unique running event set in the stunning National Arboretum, featuring over 2,500 tree species. Participants can choose between 5km and 10km routes, which offer a beautiful and varied landscap..

Enjoy a winter run through Westonbirt Arboretum's stunning tree collections on solid underfoot trail style paths. Distances of 5 km and 10 km suit all paces. Tickets are sold out.

Run a rugged 27 km off road loop from Sidmouth with about 3999 ft of climbing as you visit four trig points in order. Enjoy coastal trails, great camaraderie and support Cardiac Risk in the Young.

Take on Trails & Tarmac Backyard Ultra near Crickhowell in the Black Mountains on a scenic 4.2 mile loop that mixes trail and tarmac. Run one hour loops until only one remains; hit 32 miles for a medal and go for the winner's trophy.

Take on rolling hills, muddy trails and river crossings at Dalwood 3 Hills near Axminster on 15 Feb 2026, with 10 mile, 5 km and family friendly 3 km options. Village hall facilities and medical cover provided. Bring a cup for water.

Run along a scenic riverside trail on a disused railway between Ironbridge and Bridgnorth, with views of the River Severn. Choose from distances from 9 miles up to 37 miles for a friendly, well supported winter challenge.

Take on the Dartmoor Winter Traverse, a fully supported challenge across remote moorland from south to north, open to runners and walkers. Choose 30 km or 50 km and enjoy guided navigation and course support through dramatic winter terrain.

The Ironwood Challenge, organized by Nailsea Running Club, is a trail race near Long Ashton, North Somerset. The six-mile course runs through woodland, fields and forest, with sections that are often muddy. It is fully marked and marshalled..

Take on a scenic two lap 9.5 km trail run at Kinver Edge and the Rock Houses on 11 January 2026, with prizes for top men and women. Limited to 100 runners, the race includes medals, finish goodies and on site toilets and a cafe.

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..

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 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..

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.

The Imber Ultra is a challenging trail run of over 33 miles across the Wiltshire countryside, blending tough terrain with great views. The next edition is on 1 March 2026 and entries are expected to open around October 2025.

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..

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.

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.