Trail Running calendar near Merthyr Tydfil 2026-2027

We have found 267 Trailruns within 80 miles of Merthyr Tydfil. See below where and when you can find the races.

Endurancelife Exmoor in Martinhoe on 9 May 2026 offers 10K to ultra trail distances across moorland, woods and coastal terrain. Entries include electronic timing, a fully marked course and a finisher medal.

UTMB Index

A Welsh trail event offering a 100-mile loop from Abergavenny and a 100 km route from Talgarth to Abergavenny, both following Offa’s Dyke, Cambrian Way and Beacons Way across mountain terrain.

A 40 miles linear walk from Avebury to Streatley on 9 May 2026, following the ancient Ridgeway across chalk downlands. Checkpoints, refreshments and a finishing certificate are provided for those who complete the course.

A series of off-road and fell races in the Preseli hills around Maenclochog, Wales, with distances from 10.8 miles to about 52 km. Routes use upland ridges, wooded valleys and varied terrain and have feed stations roughly every five miles.

A multi-loop trail ultramarathon in Church Stretton on May 9 2026 offering choices from 10 to 50 miles across four distinct loops with over 10,000 ft of climbing if all are completed. Central HQ provides long buffet and timed support.

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.

Tackle the scenic 10 km Scorpion Run at Symonds Yat Rock in the Forest of Dean with winding trails and a final climb to the finish. Enjoy undulating gravel tracks, riverside views and a cafe at the start and finish for post run treats.

Trail runs around Stroud use towpaths, disused railway lines and Cotswold Way climbs, including a long ascent onto Selsley Common with wide valley views. The route has checkpoints, water provision, marshals and first aid along the course.

Take on the Caradoc Classic, a scenic 3.5 miles fell race from Church Stretton climbing about 268 m. Part of the local Summer Series, this friendly community event includes junior races and on the day entries.

Take on the OTT Trail Marathon or 10 mile race through the Brecon Beacons on 16 May 2026, featuring climbs over Pen Y Fan and sweeping reservoir views. A rugged looped trail challenge with scenic rewards and event buffs and coasters for fin..

True Grit Trail Marathon is a rugged 26.2 mile trail through quarry, hills and forestry including the Hill of Doom and Mount Mayhem. Limited to 50 runners, the marked course has feed stations and a finisher medal for a gritty challenge.

Enjoy scenic running around Ironbridge Gorge from The Unicorn Inn, with 8, 16 or 26.2 mile options passing Ironbridge, Jackfield and the Silkin Way. The path based course has some climbs, clear markings and pub refreshments at the finish.

Join the Semington Slog on 16 May 2026 for a scenic 10K or family 2K around the village, canal towpath and leafy lanes. A friendly community fundraiser at St Georges School with marshalled routes, children’s activities and tasty food, plus..

Run the Shropshire Historic 50K from Telford Town Park to The Quarry Park in Shrewsbury on 16 May 2026, via Ironbridge, Buildwas Abbey and Wroxeter Roman City. Officially measured with chip timing, nutrition stations and free photos.

Marilyn's Meldon Madness on 16 May 2026 invites runners to a spirited fell challenge at Meldon Reservoir near Okehampton, with a testing 415 m climb and sweeping moorland views. Pre entry is required and places are limited.

Trail running from Sudeley Castle in the northern Cotswolds with routes from 7 km to 51 km, marked trails, outposts and mandatory kit for longer courses. The event uses reusable cup policy and provides parking, bag drop and timed results.

Tackle rugged coastal trails and pebble beaches at the Beer Blazer in Seaton, with 10 mile, 6 mile and a 1 mile fun run options. Expect dramatic cliff top views, steep climbs, a beach section and a post race BBQ for all.

Join the Portcullis Trail 10 km in Langport on Sunday 17 May 2026 for a scenic run across the Levels, droves and countryside around Cocklemoor. Expect mixed trail terrain and a friendly community vibe; no headphones or dogs.

Tackle the 10 mile Sirhowy Challenge on 17 May, a scenic multi terrain loop climbing 1500 ft to Machen Trig Point through the rolling Sirhowy valley. Undulating terrain suits adventurous runners and all finishers receive a drinks token.