Trail Running calendar near Merthyr Tydfil 2026-2027

We have found 369 Trailruns within 80 miles of Merthyr Tydfil. See below where and when you can find the races.

A short fell race of 5.54 km with 315 m of ascent, run on a partially marked route that requires navigational skill and prior fell-running experience. Entry on the night costs £3 and the event is insured by the WFRA.

A 100 km self navigation ultramarathon across the Brecon Beacons with 3178 m of ascent, following the Beacons Way. Entrants must meet qualifying criteria including prior 50 mile ultramarathon experience and map and compass skills, places ar..

A 100 mile self navigated ultramarathon across the Brecon Beacons with 6143 m of ascent, 10 checkpoints, live GPS tracking and mandatory mountain navigation skills. Entrants must meet qualifying criteria and carry specified safety kit.

A multi-distance run along a disused railway between Ironbridge and Bridgnorth, offering distances from 9 miles to 37 miles with 9.4 mile laps and aid stations every 4.7 miles.

Multi-distance trail running in the Brecon Beacons near Abergavenny on 25 to 26 July 2026, with routes from 12 km to 110 km and UTMB Index race status for key categories.

A Britney themed 7 hour Time Challenge at Dare Valley Country Park offering distances from 3 km up to ultra and 50 km. Aid tables, medals and goody bags are provided, with free parking, toilets and a cafe on site.

A basecamp event at Dunster on 25 July 2026 offering a 50 km loop with about 1600 m of climb plus 25 km and 10 km options, all supported with marquee rest stops, GPS tracking, catering, medical cover and camping.

A 9.3 km fell race near Cwm, Ebbw Vale with 549 m of climb on moorland and a partly waymarked anticlockwise loop. Basic navigation and mountain skills are useful; the event is part of the South Wales Series.

Trail runs on 26 July 2026 from Storey Arms to the Pen Y Fan summit, offered over 5 miles or 13 miles with chip timing, marshalled routes and specified mandatory kit for each distance.

Timed laps on a 2.62 mile out and back canal route with flexible distance options from 5 km up to ultra and a seven hour time limit. Both in person and virtual entries receive a physical medal.

A short, steep fell race on 29 July 2026 in Middletown covering 2.8 km with about 440 m of ascent. Pre-entry and on-the-day entry are offered and junior races are included in the summer series.

August 2026

A *50 miles* loop around the Epynt Way on August 1st 2026, starting and finishing at Noyadd Farm Camping near Builth Wells. Mostly trail terrain with 8,559 ft of elevation, four staffed checkpoints and no formal time limit.

Discover the Rose Run with Phoenix Running South Wales at Parc Taf Bargoed, a scenic multi terrain out and back with a repeatable 5.3 km lap to build distances from 5 km to ultra. Rock up and run with staggered starts and limited spots.

A new 2026 trail running event along the Pembrokeshire Coast from Freshwater East to Saundersfoot, offering 25k and 14k routes with GPX files and a payment plan for entries.

A fell race from Llanthony Show Ground with a senior course of 6.3 km and 350 m ascent, plus a programme of junior races. The route leaves the show field, climbs through farmland and bracken, joins Offa's Dyke path, and returns via a steep..

A community-organised road half marathon and multi-terrain 5K around Sturminster Newton on 2 August 2026, with water stations, marshals, a race T-shirt and finish cake. Online entries close 1 August; day entries possible if places remain.

A family friendly trail event at Porth Farm on 2 August 2026 with 1 mile and 5 km races, modest entry fees, and entries available online.

A four mile evening run in Westbury on 5 August 2026 supporting Brain Tumour Support, with all entry fees given to the charity, pottery mementos for participants and prizes for top finishers and best helmet.

An evening cross country event at North Perrott Cricket Club offering a two-lap 10K and a one-lap 6K fun run. Entries are limited to 250 and all profits support local community projects.

A four-day, 184-mile Thames Path ultra from the river source to the Thames Barrier with daily stages, included accommodation for days one to three, bespoke finisher medals and compulsory mandatory kit and minimum pace requirements.

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