Trail Running calendar near Merthyr Tydfil 2026-2027

We have found 258 Trailruns within 80 miles of Merthyr Tydfil. See below where and when you can find the races.

Choose your distance from 3 km to ultra marathon and tackle a 7 hour time challenge around scenic Dare Valley Country Park. Enjoy lap aid stations, vegan snacks and a finisher medal for anyone completing at least 3 km.

May 2026

Take on scenic trails at the East Devon Round festival in Offwell near Honiton, 1 to 3 May 2026. From a testing 68 mile round to shorter trail options, enjoy camping at HQ and routes through Areas of Outstanding Natural Beauty.

Join the Malvern Hills Ultra on May 2 in Worcestershire for stunning but testing trail runs from 23 to 47 miles along the Worcestershire Way with big climbs, checkpoints and GPX routes provided. Finishers earn a bespoke medal and keepsake.

Rasus y Bannau is a series of epic mountain races starting and finishing in Brecon, traversing the Brecon Beacons ridges with marathon and ultra options. Expect big climbs, rugged terrain and stunning views for an unforgettable challenge.

UTMB Index

Tackle the HOWUM 30 mile ultra on 2 May 2026 around Llanidloes, a scenic trail route past Clywedog Reservoir and the source of the River Severn. With fully stocked checkpoints, no time limit and a Pegasus medal at the finish, it is a suppor..

Run the May the Fourth trail races on 2 May 2026 across scenic Long Mynd from Carding Mill Valley, with half marathon and full marathon options. Limited entries and a virtual option mean great views for hill and trail fans.

Run Exmoor's rugged coast and moorland at Maverick Exmoor X Trail in Lynton on 2 May 2026. Choose from five routes from 5 km to 56 km, enjoy fully marked, timed trails, a finishers medal and stunning Valley of Rocks views.

UTMB Index

Tempo Trail Races take over the Cotswolds on Sunday 3 May 2026, with routes ranging from 10K to a 100KM ultra. Choose your challenge and enjoy rugged trails, a friendly atmosphere and UKA backed organisation.

The Sheinton Steeplchase is a 5.3 km cross-country race held near Sheinton Church by Cressage in the West Midlands. Featuring a total ascent of 100 meters, it offers a challenging yet accessible course that is not a traditional fell race bu..

Run the Sid Valley Ring for coastal and woodland views along quiet lanes and cliffs, with challenging hills and muddy trails. Choose the 22 km Half Marathon or 13.5 km Third Marathon and finish near Sidmouth with a solid oak coaster.

Experience a scenic 50 mile point to point ultra from Taunton to Minehead, starting on flat canal towpaths then rolling coastal trails past marshes, beaches and woodland. Enjoy aid stations, a medal and stunning Westcountry views.

Tackle a rugged 50 miles ultra across West Somerset coast, moorland and woodland with dramatic climbs and the tiny Culbone church. Six aid stations, GPX route and medical cover support a 16 hour cutoff for experienced runners.

Westcountry Ultra 100 is a scenic and tough 100 mile trail from Taunton to Minehead, following canals, rivers and coastal paths. Expect dramatic views, challenging climbs and a 32 hour cutoff with plentiful aid stations.

Race the wild Exmoor coast from Martinhoe with looped trail routes across moor, woods, cliffs and rivers, featuring steep climbs and stunning sea views. Choose from 10K, half, marathon or ultra for a true coastal challenge.

UTMB Index

Tackle the Epona 100, a 100 mile ultra with 17,000 ft of climbing across Offa’s Dyke and the Beacons Way. Starting and finishing in Abergavenny, the mostly trail route offers eight aid stations and a 50 hour cutoff.

Take on the iconic Ridgeway 40 mile walk across rolling chalk downlands and ancient tracks from Avebury to Streatley on 9 May 2026. Checkpoints and support keep you going and finishers earn a commemorative badge and certificate.

Explore the wild Preseli hills in West Wales up to Foel Cwmcerwyn on trail, fell and boggy terrain. Choose the shorter Beast Bach or the full Preseli Beast for a scenic, tough off road challenge with post race food and evening social.

Apocalypse Ultra in Church Stretton offers four rugged loops that total 50 miles and over 10,000 ft of ascent. Run or walk one to all four loops in any order and direction for a tough, flexible endurance challenge.

Challenge the Welsh Three Peaks: Snowdon, Cadair Idris and Pen y Fan across about 17 miles of rugged mountain scenery. Join guided events with transport and support or attempt a self organised challenge on public dates in 2026 and 2027.

Join the Dilton Dash at Dilton Marsh for a scenic multi terrain 10K, 3K and half kilometre fun run, with medals for all finishers and prizes for top runners. Friendly small field event with refreshments and water stations.