Trail Running calendar near Merthyr Tydfil 2026-2027

A 5.5 mile multi-terrain fell run around Pen Y Gwely reservoir that starts and finishes within a traditional village show near Oswestry. The partially marked route climbs 225 m, requires limited experience, and has an over 15 minimum age; e..

Two trail races through the mountains of Afan Forest Park, about 6.5 miles or 10.5 miles with significant climbs. Online entry, chip timing, marshalled route, finishers receive a t shirt and medal.

A 10 mile trail race through Radnor forest in Mid Wales on 23 August 2026, held in aid of the Special Care Baby Unit in Hereford. The route reaches Black Mixen at 2130 ft and includes forestry roads, moorland and tree covered single track.

A guided, social-paced 13 mile urban trail around Exeter's waymarked Green Circle on 23 August 2026. The route follows footpaths and leafy suburban lanes; parking is near Haven Banks and a listed entry price is £5 until 22 August 2026.

Point-to-point ultras along the Cambrian Way into Cardiff, offered as 44- and 33-mile options with self-navigation, live tracking, indoor aid stations, and on-route support.

Trail races at Wimbleball Lake on 29 August 2026 with 10K and 5K courses plus canicross options; off-road routes, lake views, camping and race-day facilities are available.

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.

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 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.

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 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 races from Barmouth beach to Cadair Idris across coastal, forest and mountain terrain, offered in three distances with marked routes, GPX files, marshals, chip timing and post-race refreshments.

A linear 45 mile walk or run across Wales from Anchor Bridge to Clarach Bay near Aberystwyth, including Plynlimon at 2467 ft. The event has an 18 hour limit and a weekend package with accommodation, transport and route support included.

A riverside running festival on 6 September 2026 with 10 km, 5 km and a family fun run. Chip timing on multi terrain routes, canicross options, basic on site facilities and medals for all finishers.

Scenic runs in Warminster Town Park include 10K, 3K and a new 1.2K family event suitable for wheelchairs and buggies. The event supports Warminster Carnival and awards medals to all finishers.

A 19 mile fell race on 6 September 2026 around Stretton summits, organised by Telford Athletic Club. Much of the route is unmarked so navigation is required and minimum age is 19.

Trail runs of 2 km, 5 km and 10 km through the Coln River valley near Coln St Aldwyns and Bibury on 06 Sep 2026. Routes are mostly on trail with on-course refreshments and a post-race BBQ, with proceeds supporting the school.