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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 123 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.

February 2027
An approximately 8-mile multi terrain race around Sorbrook and Sluvad near Cwmbran with marshalled routes, medical cover, goody bags and age-category prizes.
Family-friendly St David's Day run at Dare Valley Country Park offering 2.5 km or 5 km routes, themed medals and a Santa gift, with toilets and free parking.
A 7 hour time-challenge at Dare Valley Country Park offering looped distances from 3 km up to ultra, with medals, distance pins, goody bags and on-course aid.
About sixish hilly country miles of off road trails above Long Ashton with chip timing, limited parking, and a charitable donation from each entry.
Trail runs and standard and sprint off road duathlons take place in the forest around Speech House, Gloucestershire.
March 2027
Trail running event in the Black Mountains with marked 10, 20 and 40 mile routes from Crickhowell, marshals, stocked checkpoints and strict mandatory kit requirements; canicross friendly and GPX routes available.
Multi-terrain ultramarathon around Bristol on the Community Forest Path, offering 30 and 45 mile options with checkpoints, chip timing, navigation files and pacers.
Trail races from Chepstow through the Wye Valley visiting Tintern Abbey, offered as a 30-mile loop or a 14.5-mile half with trail terrain and staffed aid stations.
Scenic multi surface 10 km race in Watchet featuring a disused railway section, coastal and country lane views with proceeds to the Watchet Conservation Society.
Six hour trail loop challenge at Symonds Yat Rock, repeat a 5.25 km loop with 160 m climb, aid station each lap and medals for six, nine and twelve completed loops.
A 7 hour Time Challenge at Dare Valley Country Park offering distances from 3 km up to 50 km with themed medals, goody bags, aid stations and on course support.
Annual March challenge walk around Abergavenny with four route options from about 10 to 20 miles, mountain checkpoints and charity fundraising.
A night trail at Mendip Activity Centre offering 5 km and 10 km laps as part of the Dark Skies Series; torches of 250 lumens or more are required.
A way marked Forest of Dean half marathon around Speech House on forest trails, with TRA championship and England Athletics qualifier status and proceeds to charity.
April 2027
Three long mountain races around the Bannau Brycheiniog National Park starting and finishing in Brecon, with 100 km, 40 mile and marathon options and on course support.
A 15 miles off road fell race across the Mendip Hills from Cheddar with over 2000 feet of climbing, TRA licensed and supporting local charities.
A point to point 200 miles trail race across South Wales from Chepstow to Worm's Head, with a 120 hour limit, 30,000 ft climb, eight aid stations and live tracking.
Self-navigation ultramarathons of 50 miles and 50 km across the Mendip Hills from Mendip Activity Centre with pub-based routing and on-course support.
Marked trail event in the Brecon Beacons offering 10, 20 and 40 mile routes with staffed checkpoints, mandatory kit requirements and a canicross option.
Trail and ultra runs in central Bristol on 25 km and 55 km routes that follow rivers, parks and former railway paths with feed stations and GPX navigation.
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