Trail Running calendar near Merthyr Tydfil 2026-2027

We have found 273 Trailruns within 80 miles of Merthyr Tydfil. See below where and when you can find the races.

Trail races around Abergavenny on 25 to 26 July 2026 offer distances from 12 km to 110 km, camping at Llangorse, checkpoints about every 10 km and UTMB Index categories. The event includes medical support, marked courses and a Race Pack sen..

UTMB Index

A basecamp trail event on 25 July 2026 around Dunster and Exmoor offering 50 km, 25 km and 10 km routes with covered rest stops, medical teams, camping and GPS tracking.

UTMB Index

Choose your own distance challenge in a 7-hour window at Dare Valley Country Park. Run scenic laps on well-maintained paths, with Britney-themed fun. Everyone finishing 3 km or more gets a themed medal, a goody bag, and ice cream.

Choose between a 5-mile or 13-mile trail run to the summit of Pen Y Fan, South Wales' highest peak. The entry includes a medal, buff, and chip timing, but participants must carry specific compulsory kit. The event takes place on a Sunday in..

August 2026

The EDDUM is a 50-mile ultra marathon following the Epynt Way trail loop around the Sennybridge Training Area in Wales. With significant elevation gain and fully stocked checkpoints, it offers a demanding trail adventure through an historic..

A four day, 184 mile race along the Thames Path from the Cotswolds to the Thames Barrier. Competitors are self-sufficient, must carry mandatory kit, and overnight accommodation is provided at the end of Days 1 to 3.

A 57 mile point-to-point ultramarathon along the Thames Path from Kemble to Oxford, with four staffed checkpoints, a bespoke finisher medal and event apparel, mandatory navigation kit and a required 4.0 mph average pace.

Two trail distances along the Mendip Way on 8 August 2026, finishing at Uphill Sands Beach. The routes feature woodlands, hilltop views and coastal terrain with aid stations and a cupless policy.

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 trail run starts in Talybont-on-Usk on 8 August 2026. The route heads into the hills for panoramic views across the Brecon Beacons countryside.

UTMB Index

A multi-terrain 10 km trail at Ramsbury Brewery in Wiltshire with a Canicross option. Finishers get a medal, a pint cup and a free drink; the course features two water refill stations and chip timing.

A night trail run at Fyne Court Estate offering 5 km and 10 km routes through parkland and woods. Optional wooden finisher medals are available and online entries close eight days before the event with medal purchases requiring earlier entr..

A multi-distance running event in Bath that routes through two long, lit railway tunnels and finishes at Brickfields Park; proceeds partly support Sustrans and ticketing for this edition 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.

Tackle a 45 or 30 mile ultra run on a loop around Bristol. Starting from Aston Park School, the event offers two challenging distances. Registration closes on 21 August 2026.

The Beast of Llangattock is a Welsh trail running event with four distances, from 10 km to a 32-mile ultra. Routes showcase panoramic mountain views, open moorland, and historic trails. The event features well-stocked checkpoints, mandatory..

Run your chosen distance on the scenic paths of Dare Valley Country Park. This 7-hour time challenge offers distances from 3km to ultra, with a unique cupcake medal for all finishers. Enjoy a bake-off themed aid station and post-run goody b..

A trail event in Afan Forest Park offering two measured routes of about 6.5 miles and 10.5 miles with substantial climb and prize categories. A separate one mile Mini Beast for children includes a finisher medal and sweets.

Run the trails at Wimbleball Lake with a choice of a 5K or 10K distance, each featuring a lap with views and a section over the Dam. A Canicross category lets you race with your dog. Entry includes chip timing, a marked course, a finisher's..

Choose from a 44 or 33 mile point-to-point ultra along the Cambrian Way, finishing in Cardiff after passing the iconic Castell Coch. The routes traverse mountains, wooded valleys, and villages, supported by well-stocked aid stations. Organi..