Trail Running calendar near Merthyr Tydfil 2025-2026

Muddy Woody 2026: The Wye Valley Brewery Muddy Woody returns on 8 February at a new Aconbury Court Farm course. About 6 miles of forest and single track with runnable hills, chip timing and a free bespoke Muddy T shirt for finishers. Junio..

Take on the Wiltshire 10, a scenic 10 mile road race from Melksham to historic Lacock and back, with medals for all finishers and age category prizes. Entries capped at 300, book before 1 February 2026 as no entries on race day.

Take on the rolling countryside at Dalwood 3 Hills on 15 February 2026, with 10 mile, 5 km and 3 km trail routes featuring hills, mud and river crossings. Friendly village HQ and rustic parking promise a proper off road winter challenge.

Run a flat, traffic free 10k on the National Cycle Network from Calne to Stanley near Chippenham, chip timed and well marshalled on an out and back multi terrain course. A 1 mile fun run for under 17s and limited entries make this a friendl..

Run Brimscombe's canal towpath at the Back to the 80s timed event, choosing any mix of 2.62 mile laps to make 5k to ultra distances. Enjoy a relaxed one hour start window, seven hour limit and a bespoke finisher medal to mark your effort.

Take on the Dartmoor Winter Traverse on 21 February 2026, a fully supported south to north challenge across remote winter moorland open to runners and walkers. Choose 50 km or 30 km routes with guide support and generous cut off times.

Choose distances from 9 miles up to a 37 mile ultra on the Winter Railway Ultra, a scenic route along the River Severn on a disused railway between Ironbridge and Bridgnorth. Enjoy regular aid stations, great riverside views and nearby vill..

Experience Bath's Two Tunnels from Brickfields Park, running through lit, traffic free tunnels and scenic river and trail sections. Distances range from 500 m to a 50 km ultra and marathon, but entries are sold out.

Enjoy a scenic off road 9.5 km trail around Kinver Edge and the Rock Houses, run as two laps over tracks and trails. Limited to 100 runners, the event includes medals, finish goodies and prizes for the top three in each category.

Take on the Sorbrook Slog on 22 February 2026, a lively 7 mile multi terrain race through footpaths, fields and gullies around Sorbrook and Sluvad in Cwmbran. Enjoy marshals on course, post race tea and cake and a finishers goodie bag.

The Terminator 2026 is a tough but rewarding 12 mile trail race around Pewsey, Wiltshire, mostly off road with muddy climbs and high point views. All finishers receive a unique T shirt and race village treats await.

Castle 2 Castle Ultra is a 32 mile ultramarathon from Powis Estate to Caffi Wylfa, taking runners over fast paths and rolling footpaths with scenic castle views. Finishers get a celebratory plate and goodies and top three men and women win..

Tackle the 25 mile South Shropshire Circular from Minsterley Village Hall, a navigational challenge across scenic hills with checkpoints and a 10 hour limit. Organised by LDWA and currently full with a waiting list.

Run the scenic Brecon to Cardiff Ultra, a fully marked 70 km one way race along the Taff Trail on 1 March 2026. Enjoy epic views, checkpoint support and a finishers medal as you cross the line at Coleg y Cymoedd in Nantgarw.

Take on the Brecon to Cardiff Xtreme, a winter mountain trail offering a challenging 75 km ultra or a 26.2 mile marathon across rugged ridges. Navigation, big climbs and stunning upland views make this a true mountain test.

Tackle the Imber Ultra, a scenic 33.5 mile multi terrain trail run around the Imber Range on Salisbury Plain, starting in Westbury. Organised as a charity fundraiser, this classic March ultra promises tough trails, great camaraderie and fin..

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.

Celebrate St David's Day with the Dragon Run at Dare Valley Country Park 1 March 2026, a scenic lap course offering distances from 3 km to ultras. Friendly, well supported and medal for all finishers, plus goody bags and great views.

Push your limits at Haldon Horror on 1 March 2026 in Haldon Forest Park with 3 hour, 6 hour or 12 hour formats on 5 mile laps and canicross options. Medals, live GPS tracking and free photos await, just bring a headtorch.

Take on the Brave 5km and 10km on 1 March 2026 in Exmouth for cliff, coastal path and beach running, starting and finishing at Sideshore. Mixed terrain routes, great views and proceeds support the Sideshore Project.