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Trail Running Calendar near Thornbury 2026-2027

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Explore the top trail runs near Thornbury for 2026-2027! We've gathered 134 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.

October 2026
Part of a Halloween race series at Pengethley Manor, The Scary Scamper offers 5k, 10k, half, marathon and ultra options on a tough off road loop with a seven hour time limit and a virtual option worldwide.
Part of a Halloween series at Pengethley Manor, The Creepy Crawl offers 5k to ultra distances on an offroad, lap-based course with a seven hour time limit. Virtual entries and themed medals are available for paid participants.
A 5k night trail at Dunkertons Park in Cheltenham where runners use head torches to light the course. Open to ages 16 and over, with prizes for top three men and women and on-site refreshments and safety rules.
An offroad event at Pengethley Manor offering 5k, 10k, half, marathon and ultra distances with a seven hour time limit, on-course laps of 2.5k and themed medals; virtual participation and a charity entry option are available.
A Halloween series race at Pengethley Manor with 5k, 10k, half marathon, marathon and ultra options and a seven hour time limit. The offroad course runs inside the manor grounds and includes a hill and vineyard sections.
A Halloween series event at Pengethley Manor offering 5k, 10k, half, marathon and ultra distances on a tough offroad course with vineyard laps. Entrants have seven hours to finish and virtual participation is available.
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.
The Zombie Shuffle at Pengethley Manor offers 5k, 10k, half marathon, marathon and ultra options on a tough offroad course with a seven hour time limit. Virtual entries are available worldwide with medal options for paid entrants.
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.
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.
November 2026
A 10 mile off road trail in Stonehouse near Stroud on 1 November 2026, starting with about one mile uphill followed by nine miles of undulating muddy trails. Canicross runners are welcome and there is a 2 hour 30 minute cutoff.
A multi-terrain 12 km off-road race from Barton Farm Country Park with a river crossing, chip timing, prizes and team awards, raising funds for Alzheimer's Support.
A ten mile cross country race in Chipping Sodbury with muddy, varied terrain and water obstacles. Held on Remembrance Sunday and preceded by a commemorative silence, it draws around 1300 runners.
Mid-November night and day off-road races around the Bath Skyline, offering 500 m, 5 km and 10 km options with marked trails, mud and panoramic city views.
Timed lap event in Cardiff Bay offering flexible start times and distances from one 5.3 km lap up to multi lap ultra within a 7 hour limit.
A Movember charity run at Ashton Court Park offering 1.5k, 5k, 10k and half marathon options with chip timing, medals and headbands, mixed path and trail terrain, some hilly sections, and on course refreshments.
A short fell race of 5.7 km with 485 m of climb on Blorenge near Llanfoist, Abergavenny. Mostly unmarked up-and-down route with steep technical terrain; basic navigation and full kit are recommended.
Two trail distances on 28 November 2026 around Machen, featuring wooded single track, ridgeway exposure and steep climbs. The half course is fully marked while the marathon requires self navigation with marshals at key points.
December 2026
Part of a 12 Days of Christmas series at Pengethley Manor in Ross on Wye offering 5k, 10k, half marathon, marathon and ultra distances on a tough off road loop. Runners and walkers have seven hours to complete their chosen distance with virtual optio..
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