Trail Running calendar near Nantgarw 2025-2026

We have found 277 Trailruns within 80 miles of Nantgarw. See below where and when you can find the races.

Tackle an epic 100 mile ultramarathon across the Brecon Beacons National Park, summiting iconic peaks and crossing wild mountain trails. Limited to 250 runners with live GPS tracking and full checkpoint support, this is a true test of endur..

Ultra X Wales in the Brecon Beacons on 25 and 26 July 2026 offers trail races from 12 km to 110 km with aid stations along the routes. Camp on site, benefit from UTMB index status and GPS tracking for the 110 km, and earn a finisher medal.

UTMB Index

Run along the South West Coast Path and Exmoor from a Dunster basecamp near Dunster Castle with scenic 50 km, 25 km or 10 km loops and big climbs. Enjoy covered aid stops, camping, shuttles and a finisher T shirt, medal and race fizz.

Run your own race at Ooops I Ran It Again Wales, a 7 hour time challenge at Dare Valley Country Park on 25 July 2026. Pick any distance from a 3 km minimum to ultra and enjoy drinks stations, a cafe and a themed medal.

Take on the Pen Y Fan Challenge, a scenic trail race to the summit of Pen Y Fan in South Wales on 26 July 2026. Choose a 5 mile or 13 mile route, enjoy marshalled trails, a finisher medal and on course refreshments.

August 2026

Take on EDDUM 2026 on August 1, a 50 mile loop along the Epynt Way around the Sennybridge military training area, mostly trails with plenty of climbing. The supported route features five staffed checkpoints, no time limit and a relaxed fini..

Join the Totnes 10K on Sunday 2 August 2026 for a scenic off road run alongside the River Dart, starting and finishing in Borough Park. Expect a fun 1 mile family run, bespoke medals and a lively village atmosphere.

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.

Run beneath historic Bath through the lit Two Tunnels on routes from colourful fun runs to marathon and 50 km challenges. Starts and finishes at Brickfields Park and tickets are 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.

Join the Gt. Links Tor Flyer on Dartmoor for a challenging 7.5 km fell race with 388 m of climb, finishing at the Fox & Hounds in Lydford. Open to seniors and juniors with pre and on the day entry.

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.

Take on the Beast of Llangattock, a scenic trail from Park Farm with distances from 10 km to a 51 km ultra on August 22 2026. Rugged climbs, panoramic Brecon Beacons views and well stocked checkpoints make for a challenging day out.