Trail Running calendar near Cardiff Bay 2026-2027

We have found 434 Trailruns within 80 miles of Cardiff Bay. 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 8 hour timed off-road event in Bridestowe with 5.3 km laps on a former train line, limited to 70 entrants and offering medals for finishers.

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.

Run Winchcombe at Sudeley Castle on 30 August 2026 offers 1k, 5k and 10k routes through castle grounds and up to Belas Knap with medals and finishers' sausages.

An 8-hour timed challenge on a scenic disused train line near Bridestowe where runners and walkers complete 5.3 km laps under a Turn Up Get Going format; entries limited to 70.

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 Tuesday night charity fun run in early September raising funds for Weldmar Hospice. It features roughly 2K and 5K routes at Grove Farm Estates with entry on the night and no water station.

A navigational endurance march in South Wales offering a full 64 km route and a 32 km half with self navigation and guided group options.

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 rugged off-road 6 mile single lap race on Dartmoor from and back to Haytor Rock with steep climbs, a stream crossing, water at Hound Tor, and a finisher medal.

Trail-style races through Westonbirt Arboretum offering Half Marathon, 10 km, 5 km and a 1 Mile fun run across September and February events.

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.

Point to point 50 km ultramarathon linking Ramsbury Brewery and Renegade Brewery with mostly off-road terrain, 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.

Timed lap event at Coate Water Country Park with 3.35 mile laps, a spinning finisher medal, on-course aid and options for attended or virtual participation.

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