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Trail Running Calendar near Machen 2026-2027

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Explore the top trail runs near Machen for 2026-2027! We've gathered 108 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.

September 2026
Guto Nyth Bran is a fell race on 26 September 2026 at Bedwas Community Hall covering 9.6 km with 396 m of climb. The course is partially marked, includes a short walk from parking, and is for entrants over 18.
Trail race at Margam Country Park offering 5 km and 10 km routes through woodland with castle views. The event features chip timing, water stations, a finisher's medal and parking included with entry.
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.
October 2026
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 3.2 km fell race on Fan Fawr with 305 m ascent, part of the South Wales Series; entry £2 on the day, minimum age over 16.
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 options.
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 self navigated 55 km circular ultra through the Forest of Dean on 10 October 2026 with GPX navigation, aid stations, HQ at Beechenhurst and a canicross category.
Trail race in an Area of Outstanding Natural Beauty around Biblins Youth Campsite, Ross-on-Wye covering approximately 6 miles or 10k on mixed trails and single track. Entry is limited to 200 runners and prizes include individual and team awards.
A fell race on the Cat's Back ridge in the Black Mountains covering about 11.7 km with 492 m ascent, run under WFRA rules with chip timing and on-site facilities.
A community-focused trail event at Blaise Castle Estate offering 1K, 5K and 10K distances, cultural food, live music and activities. Organised by Black Trail Runners to increase ethnic diversity in UK trail running.
A seven hour Time Challenge at Dare Valley Country Park offering distances from 3km to 50km, themed finisher medals and distance pins, on course aid with vegan options, and basic venue facilities including toilets and free parking.
Join the Aberfan Memorial Run in Merthyr Tydfil to honour the 1966 victims and support the Aberfan Memorial Charity. Choose 5 km to ultra on a scenic tarmac loop along the Taff Trail with flexible start times and official timing.
Run a 4 mile loop every hour for 12 hours at Left Handed Giant in Bristol, aiming for up to 48 miles with on-site hydration and a finisher goody bundle.
Mendip Muddle is a 20 km multi terrain fell race in Somerset with about 420 m of climbing. Headquarters are at Charter House Outdoor Activity Centre; on course water and first aid are provided and prizes are awarded by category.
A 32 km fell event on Pen y Fan with three ascents via six different routes and an optional 16 kg weighted category; navigation and GPX use are required.
Winter fell race up Sugar Loaf covering 9.6 km with 485 m ascent from The Crown, Pantygelli; full WFRA kit required and entry via Fabian4 with limited parking.
Timed lap event at Barry Sidings Country Park with flexible start times, distances from 5 km to ultra on a tarmac out and back course and a medal or no medal option.
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