Trail Running calendar near Merthyr Tydfil 2025-2026

We have found 228 Trailruns within 80 miles of Merthyr Tydfil. See below where and when you can find the races.

Run the Brecon Beacons at Midnight Mountain Marathon on June 6, 2026, starting in daylight and finishing under the stars, so some may need a torch. Take part in Marathon, Half Marathon or Bergen pack races and earn a medal and a mug of tea.

Join the Divorce Day Defib Fundraiser for a fun, scenic run from Coalport Village Hall along the Silkin Way and over Ironbridge. Choose 8, 16 or marathon distances and embrace fancy dress with top hats and tiaras to boost spirits.

Tackle 40 miles of the Wales Coast Path from Porthcawl to Penarth, passing golden beaches, cliffs and Ogmore Castle. No time limits and strong support let you relax and earn a Pegasus medal.

Run through two lit railway tunnels beneath Bath on routes from short fun runs to ultra distances. Starts and finishes at family friendly Brickfields Park and each entry supports Sustrans, making it a memorable community day out.

Run the scenic Care for Kids Barnstaple 10K on 7 June 2026 along a flat, mostly off road route on the Tarka Trail and riverside parks. Enjoy chip timing, a finishers medal and an event shirt for early entrants while supporting a great local..

Run the scenic Cotswold Way from a Cirencester basecamp on 13 and 14 June 2026, choosing a full 100 km loop or shorter trail distances to suit every level. Expect rest stops, GPS tracking, medical and massage teams, plus camping and caterin..

Tackle 15 miles of the historic Offa's Dyke path around Hay on Wye in a scenic and challenging trail race. Friendly atmosphere and relay option make it perfect for solo runners or teams seeking a memorable summer run.

Run the dramatic Cheddar Gorge on trails across the Mendip Hills, from a fun 1k up to a full marathon, with cliff top views, meadows and rugged rock underfoot. Finishers of 6km and longer earn a two sided event medal.

Take on Ultra Wales 50, a rugged 51 mile mountain trail through Southern Snowdonia from Cadair Idris to Coed y Brenin. Expect wild ridgelines, tidal estuary views and a true endurance challenge with limited places.

Run the Jurassic Coast World Heritage Site on 20 to 21 June with self navigated multi distance races from Poole to Exmouth. Enjoy scenic coastal trails, live GPS tracking and well stocked aid stations for a professionally managed challenge.

Challenge yourself on the Lake Vyrnwy 10k, a scenic multi terrain trail around the estate with climbs, fast downhills and stunning lake views. Open to runners 16 and over, finishers receive a medal and a lively finish arena with music.

Challenge yourself on the Lake Vyrnwy 10k, a scenic multi terrain trail around the estate with climbs, fast downhills and stunning lake views. Open to runners 16 and over, finishers receive a medal and a lively finish arena with music.

Run Lundy Island on a scenic 13.5 mile marked trail that hugs dramatic clifftops and visits all four corners. Boat transfer is available, support is on course and every finisher earns a medal.

July 2026

Join the PIGUM on July 4, 2026 in Abergavenny for a 30 mile mountain trail ultra with about 5,000 feet of climbing, taking in Sugar Loaf and ridge country. Expect fully stocked checkpoints, friendly crew support and no time limit.

Run a scenic Half Marathon from Wolverhampton to Brindley Place along canal towpaths and through a 360 m tunnel on a flat route. Chip timed waves, early entrants may get personalised bibs, finishers receive a medal, T shirt and goody bag.

The Turd is a fun running event held in the scenic valley of Ironbridge, Shropshire, hosted by How Hard Can It Be Events. Participants can choose from three distances: 8 miles, 16 miles, or a full marathon. The marathon involves completing..

Run the Severn from source to sea in a five day, approximately 220 mile multiday ultra along the Severn Way. Split into five stages with finisher medals that form a jigsaw, this challenging route rewards navigation skills and grit.

Run a scenic 27 mile point to point ultra from Rhyd y Benwch to Maesmawr, climbing Plynlimon to the source of the Severn. Expect rugged mountain views, navigation challenges and checkpoints with vegan and gluten free options.

Take on the MTC Severn Plod Ultra, a scenic 48 mile run from Mid Wales to Shrewsbury on 9 July 2026. Expect river views, Offa's Dyke Path, the Breidden Hills and a bespoke finisher medal in the race's tenth year.

Tackle the scenic 59 mile MTC Severn Path Ultra along the River Severn from Shrewsbury to Worcester on 10 July 2026. Expect varied riverside trails, supportive checkpoints and a bespoke medal and MTC head visor for finishers.