Trail Running calendar near Merthyr Tydfil 2025-2026

We have found 253 Trailruns within 80 miles of Merthyr Tydfil. See below where and when you can find the races.

Tackle just over 8 miles of hilly Cotswold Way and woodland trails at the Standish Woodland Chase on 02/08/2026, hosted by Stroud & District AC. Expect scenic climbs, a metal finisher medal and a lively community atmosphere.

Take on the MTC Thames Challenge, a four day 184 mile ultra along the Thames Path from the Cotswolds to Greenwich. Choose solo or relay and enjoy shared accommodation, evening meals and daily kit transfers.

Tackle the 57 mile point to point MTC Cotswold Ultra along the scenic Thames Path through Cotswold countryside. Finishers receive a bespoke medal, every runner gets an MTC visor and checkpoints plus GPX keep you supported.

Tackle the Mendip Marauder on 8 August 2026, a rugged trail challenge offering 30 mile and 50 mile routes across woodlands, hilltops and classic Mendip landmarks. Both distances finish on Uphill Sands Beach in Weston Super Mare for a glorio..

Tackle the Sticklepath Horseshoe a 15.5 km fell race over rugged moorland with 519 m climb. Pre entry is limited so book early. Bring map compass and solid navigation skills as this event is not suitable for beginners.

The Brecon Beacons 51k will take place in Talybont-on-Usk on Saturday 8 August 2026.

UTMB Index

Join Ramsbury Gold 10km at Ramsbury Brewery for a scenic mostly trail run through woodland and footpaths with about 180 m of climbing. Canicross option, chip timing, medals and finish drinks included while supporting Brighter Futures.

A sharp 4.4 km fell race from the Ragleth Inn in Little Stretton featuring 390 m of climb and great ridge views; a fast, testing course for keen fell runners. Pre entry via SI Entries or entries on the day are welcome.

Experience Bath's Two Tunnels run along restored railway paths, choosing distances from 500 m Colourburst to marathon and ultras. Organised by Relish The Great Outdoors with Sustrans support, this popular community event is sold out.

Join the Crook Peak Cake Race in Axbridge on Wed 19 Aug 2026 for a spirited 3 mile fell challenge across stunning Somerset hills, finishing with cake and community cheer. On the day entry available for runners aged 14 and up.

Discover the Summer MTC Green Man Ultra around Bristol's Community Forest Path with 45 and 30 mile clockwise routes finishing at Ashton Park School. With festival style checkpoints, a bespoke Green Man medal and a challenging scenic route.

Tackle rugged trails and dramatic escarpments at the Beast of Llangattock at Park Farm near Crickhowell, with distances from 10 km to a 51 km ultra. Expect steep technical terrain, well stocked aid stations and sweeping hilltop views.

Take a scenic single lap around Wimbleball Lake on varied off road trails with a short tarmac crossing, choosing 5K or 10K. Part of the Wimbleball sports festival with canicross entries, chip timing and finisher medals.

Run point to point along the Cambrian Way into Cardiff with two scenic trail ultra options, 44 miles from Llanthony Priory or 33 miles from Abergavenny. Expect rugged fells, woodlands and a dramatic finish near Castell Coch.

Join Worcester Woods parkrun every Saturday where Pershore Plum Plodders often gather to run, chat and enjoy refreshments after the run. Friendly, community focused and great for beginners and regulars alike.

September 2026

Take on the RIDUM 30 mile ultra on September 5, 2026 exploring ridge top trails around the Rhymney Valley with big climbs and mostly off road terrain. Well stocked checkpoints and post race care await finishers.

Run the rugged beauty of the Shropshire Hills at Battle of the Borders, starting from Carding Mill Valley and tackling the dramatic Long Mynd ridges. Choose marathon, half marathon or 10K on waymarked, scenic but rewarding trails.

Join the Ross on Wye Riverbank Run on 6 September 2026 for scenic multi terrain 5k, 10k and a family fun 500m along the River Wye. Flat, fast course, chip timing and medals for all finishers make it perfect for racers and families alike.

Join Carnival Chase at Warminster Town Park on 6 Sep 2026 for friendly 10K, 3K and family 1.2K wheelchair and buggy runs around the boating lake and scenic lanes. Medals for all finishers and refreshments. Enter by 1 Sep.

Take on the Stretton Skyline, a scenic yet demanding 30.5 km fell race around Church Stretton with 1357 m of climb and panoramic Shropshire Hills views. Pre entry only, finishers enjoy a tasty goody bag.