Trail Running calendar near Merthyr Tydfil 2026-2027

We have found 374 Trailruns within 80 miles of Merthyr Tydfil. See below where and when you can find the races.

A new *15 mile* trail event in September 2026 on the Rhymney Valley Ridgeway Walk, with 2,267 ft of ascent, mostly off-road terrain, one fully stocked checkpoint and organised entry support from Rudry to Parc Penalta.

Test your endurance at a looped off road running event featuring 6, 12, and 24 hour challenges. Enjoy a community atmosphere with on site camping and options for solo runners or relay teams on a flat farm based course.

Trail running in the Shropshire Hills from Carding Mill Valley with Marathon, Half Marathon and 10K options across The Long Mynd and National Trust land, waymarked route, on-course aid stations and a finishers medal.

A one-day trail event on 5 September 2026 around Barmouth and Cadair Idris offering three race distances. Routes pass coastal viewpoints, forest tracks and mountain trails with marked courses, marshals, chip timing and post race provisions.

A long distance 45 mile walk or run across Wales with an 18 hour time limit. The weekend event includes overnight accommodation, coach transport to the start and refreshments along the route.

Riverside running festival in Ross-on-Wye on 6 September 2026 featuring chip timed 5 km and 10 km races, a 500 m family fun run, and canicross options. Multi terrain riverside routes, medals for finishers, on-site facilities and medical cov..

A community race at Warminster Town Park with 10 km, 3 km and a 1.2 km family, wheelchair and buggy friendly fun run on country lanes and trails, medals for finishers and prizes for top places.

A 30.5 km fell race around Church Stretton with 1360 m ascent, partially marked and requiring navigational skills. Entry is £10 with a 180 runner limit and minimum age over 19.

A series of runs at Westonbirt Arboretum in Sept 2026 and Feb 2027, offering distances from 1 mile to half marathon on solid forest paths, with marked courses, feed stations, event medals and age‑based entry rules.

Trail runs of 2 km, 5 km and 10 km take place along the Coln River valley near Coln St Aldwyns on 6 September 2026. Routes are mostly on trail and proceeds support Hatherop Primary School's Big Build Project.

A single hill fell race over a classic horseshoe route to Waun Fach covering 11.2 km and 610 m ascent, based at Dinas Castle Inn with marshals, first aid cover and a maprun variant for solo or paired efforts.

A small community trail race in Epney, Gloucestershire covering about 10 miles with roughly 70 m of ascent. The circular course follows canal towpath and local footpaths and features marshals, an aid station and a GPX file for guidance.

Coastal running from Exeter to Babbacombe Downs with 50k, marathon and half marathon options; cupless format, marked coast path, cut-offs, and a bespoke medal plus a warm pasty at the finish.

Run as far as you like at Alice in Runderland, a timed multi lap event at Parc Taf Bargoed with flexible start times and on course support. Choose from one lap up to marathon and earn a bespoke finisher medal.

A short fell race on Dartmoor of just under 5 km with 276 m ascent, starting and finishing at Sourton Village Hall. Junior races are available with marked short routes and low entry fees.

A long, non-commercial fell race in the Black Mountains with a 27.4 km route and 1586 m of ascent. The event uses five checkpoints, requires full navigational kit, and operates on open access land with no on-course water provided.

A scenic trail 10 km route around Cleveland Lakes organised by the Cotswold Lakes Trust, featuring flat tree lined paths and water views. Participants must be 15 years or older and accept the event terms and conditions.

An eight mile community run from Barnstaple Pannier Market to Crow Point with a one mile children's race and an event village near the finish; proceeds support Families in Grief's 20 Years of Hope fundraising campaign.

A 10 km fell race at Seatown and Chideock Hill on 13 September 2026 with about 570 m of climb. Entry is available beforehand or on the day for a £20 fee and the minimum age is 18.

Beat the Black Dog is a 12 km canitrail and trail run at Halo Ogmore Valley Life Centre in Ogmore Vale on 13 September 2026, held in aid of PAPYRUS Prevention of Young Suicide.

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