Trail Running calendar near Merthyr Tydfil 2026-2027

We have found 347 Trailruns within 80 miles of Merthyr Tydfil. See below where and when you can find the races.

A forest trail half marathon in late September with no road crossings, chip and gun timing, water stations and medals for finishers, organised by the local Rotary Club.

A coastal 10 km race along the North Somerset shoreline, passing Black Nore Lighthouse and Redcliffe Bay. The mixed terrain route includes grass, mud, rocks and tarmac with undulating sections and a seafront finish.

A fell race near Criggion covering 11.5 km with 790 m of ascent on a partially marked course that requires navigational skills. Entry is £8 and teams may enter free of charge.

A multi-terrain 10K through country lanes and woodlands on 27 September 2026, organised by Wye Valley Runners to raise funds for the Herefordshire Special Care Baby Unit. The race finishes at Credenhill Social and Sports Club with on-site c..

A trail running event across Dartmoor National Park on 27 September 2026, offering a 20 mile and a 14 mile Wee Beastie across moorland and tors. Proceeds support Hospiscare and the race includes chip timing and finishers medals.

October 2026

A waymarked 100 miles circumnavigation of Dartmoor across varied moorland, woodland and riverside trails with six indoor checkpoints and GPS tracking. A 51 miles Granite 50 option follows the eastern section with three checkpoints.

Repeat a 9 mile mixed-terrain loop at The Nature Centre, completing as many laps as possible within an eight hour limit.

A 7 hour Time Challenge at Dare Valley Country Park with flexible distances from 3 km to ultramarathon options. Finishers receive a themed medal, distance pins and refreshments including doughnuts and ice cream.

A short fell race on Fan Fawr covering 3.2 km with 305 m of climb, requiring experience and navigational skills. Entry is on the day only for £2; minimum age over 16 and junior races to be confirmed.

A trail half marathon through the Quantock Hills with technical trails, climbs, stiles and stream crossings. The route has marshals, two feed stations and clear signage, with awards for top finishers and weekend camping and bunkhouse option..

A functional fitness race in Brierley Hill combining ten strength Xercises with repeated 400m or 800m runs, offered for solo, doubles, and relay teams.

A chip timed 10 km trail race on 4 October 2026 through Somerset countryside, passing a prehistoric long barrow. The event includes a bespoke medal, Race Nation app support, camping nearby and proceeds shared with two charities.

Trail event at Ashton Court Estate offering 6 km and 10 km trail or ruck options with GORUCK Rucker 4.0 and competitive or open categories.

A beginner friendly off road 10 km along the River Wye from Ross on Wye with nearby facilities, parking and a bespoke finisher medal; postponed until 4 October 2026.

An inflatable obstacle course event in Cheltenham on 10 October 2026 offering 2.5k to 15k distances, on course music, a finisher's medal and family friendly entry rules.

A 32 mile trail through the Cambrian Mountains from Camp Plas near Dolanog, capped at 100 runners and fully marked with checkpoints and a 14 hour cut off. The weekend includes on-site camping, catering, live music and lakeside activities.

A 55 km circular trail ultra across the Forest of Dean that follows a GPX navigation route through single track, riverside sections and ridges. Canicross has its own category and aid stations provide water, food and toilets.

A 50 mile LDWA qualifier in Crowcombe on 10 to 11 October 2026, run as two loops onto the Brendon Hills and the Quantocks; entries require a recent 30 mile completion.

A 24 hour looped endurance event in Haldon Forest where runners complete one lap each hour for 24 hours, with distances from 10k to ultra and on site facilities.

The Twin Peaks Race in Aberystwyth challenges runners with ascents of both Pen Dinas and Constitution Hill on an 11.7 km route. A shorter junior race on the promenade is also available. The event features varied terrain and finishes with a..

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