Trail Running calendar near Cardiff 2026-2027

We have found 396 Trailruns within 80 miles of Cardiff. See below where and when you can find the races.

An approximately 8 km fell race in North Pembrokeshire with about 320 m of climb and a partially marked course. Junior races run in several age categories and entry fees are modest.

A chip timed, multi terrain flat 10 km race around Pershore that starts at Pershore Leisure Centre and finishes in Abbey Park. Entry is online only, limited to 325 places and includes a medal, water and a plum for finishers.

An eight hour timed event on Sunday 30 August 2026 in Bridestowe offering 5.3 km out and back laps along a disused train line. Flexible arrival via a TUGG system and finishers who complete their final lap within the permitted time receive a..

A 11.3 km fell race with 350 m ascent near Mynachlog-ddu and Rosebush. The partially marked course requires navigational skills and experience. Entry is £5 pre-entry or £7 on the day and includes tea and cake.

A guided 13 mile run from Newbridge Car Park across Dartmoor, visiting Bronze Age and medieval field systems, tors, and valley sections. The route has about 680 m ascent and requires trail shoes and half marathon fitness.

An 8 hour timed out and back event on an old disused train line near Bridestowe with 5.3 km laps and a flexible turn up and start system. Limited to 70 entrants and minimum age 18.

A 7 km fell race with 365 m of ascent in Machen on 31 August 2026. The route runs on steep, loose terrain so trail or fell shoes are recommended and entry is on the day with a £7 fee and age limit over 18.

September 2026

A **30 mile** ultra run from Studland Bay around the Isle of Purbeck with about 4600 ft elevation. The guided coastal route uses the Purbeck Way and South West Coast Path and passes Corfe Castle, Kimmeridge Bay, Swanage and Old Harry Rocks.

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 single lap, off-road moorland race of about 6 miles that starts and finishes at Haytor Rock. The route crosses rugged terrain with steep climbs and descents, a water station near Hound Tor, a 350-runner limit and charity support.

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.

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.

A point to point 50 km ultramarathon between Ramsbury Brewery and Renegade Brewery across woodland trails, canal towpaths and country lanes. The course is mostly off road with four aid stations and a nine hour cut off.

Trail marathon and half marathon in North Hampshire on 05/09/2026, with climbs to 280 m, scenic countryside routes, marked courses, aid stations and chip timing. A Military Cup allows serving units to compete as teams.

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 the Stretton hills with about 1360 m of ascent, summit checkpoints and partial course marking. The route requires navigational skills and significant fell running experience; entries are limited and the fee is £10..

A roughly 13(ish) mile TRA licensed trail race around Corfe Castle Common and the Purbeck coast on 06 September 2026. The event includes four water stations a 3 hour 30 minute cutoff and awards trophies plus a finisher t shirt.

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