Trail Running calendar near Builth Wells 2026-2027

A 32 mile loop around the Black Country on 21 March 2027 at Baggeridge Country Park near Dudley. The route is mostly traffic free with tunnels and three staffed checkpoints, and can be run solo, as a pair or a team of four.

A measured half marathon through way marked forest trails in the Forest of Dean, starting and finishing at the Speech House Hotel. The Rotary Club organises the race, proceeds go to charity, and the event serves as a national championship q..

Three long distance mountain trail races start and finish in Brecon, following circular routes through the Brecon Beacons National Park. Distances range from a marathon to a 100 km ultra with marked routes, checkpoints and compulsory kit re..

A spring running and walking festival in the Shropshire Hills with off road distances from 10 km to 80 km. Events raise funds for the Grow Cook Learn charity and feature varied trail terrain and staffed checkpoints serving local food.

An 8.6 mile multi terrain race around Trawsfynydd Lake on mixed tarmac and trails with 175 m ascent, chip timed and marshalled. Proceeds support South Snowdonia Search and Rescue; open to athletes aged 17 and over.

The Pendine Sands Races stage beach out-and-back events over 5k, 10k and a half marathon on firm sand, with flagged distances, cup-free water stations, bespoke finisher medals and category trophies.

A 200 mile point to point trail race across South Wales from Chepstow to Worm’s Head, with a 120 hour limit, live runner tracking, eight aid stations and organised drop bag support.

A 50 km women focused event in Pwllheli on 17 April 2027 with a strict no-crew policy, minimum age 18, limited refund rules, and recommended third-party insurance.

A trail running event using the West Somerset Railway steam line, offering *11 km*, *11 miles* and a full marathon. Runners travel by steam train to their start points and finish outside Minehead Station, with routes through the Quantock Hi..

A guided 18 mile trail run on the Malvern Hills meeting at North Quarry Car Park in Great Malvern. The ridge route includes over 1300 m of ascent and a social group pace of about 10 minutes per mile.

Trail ultramarathons in the Mendip Hills offering two self navigation distances, 50 miles and 50 km, organised by Town and Country Harriers to benefit the Mendips Hills Fund. Aid stations, GPS trackers, finish medals, prizes and camping are..

A trail running event in the Brecon Beacons on 17 April 2027 offering marked 10, 20 and 40 mile routes from Henderson Hall with well stocked checkpoints, mandatory kit checks and canicross-friendly entries.

A last-person-standing Backyard Ultra at the Medieval Village, Cosmeston Lakes: runners repeat a fixed **6706 m** loop each hour until one athlete completes one more loop than anyone else. Camping and on-site facilities are provided.

Malvern Hills Trail Half Marathon is a 13 mile offroad race on 24 April 2027 across woodlands, fields and a ridge near Wynd's Point, with three aid stations, staffed checkpoints and a timed, signposted route; places are limited.

Three coastal trail races on the Vale of Glamorgan coast on 24 April 2027, including a 32.5 mile ultra, 18.5 mile trail and 10 mile route. The course follows the Wales Coast Path and finishes at Ogmore-by-Sea Village Hall.

A walking and running event around Bath with routes of 12.5, 17, 21 and 26.5 miles over public footpaths, staffed checkpoints, a finisher's medal and post-event refreshments.

Out-and-back trail event from Abberley Village Hall with 23, 31, 38 and 47 mile options; the full route includes about 2,941 m ascent, GPX navigation is provided and checkpoints enforce a 13 hour maximum time.

A 5k obstacle course at Coopers Field, Bute Park, Cardiff, with tarmac paths and grassy sections that can get boggy after rain. The event raises funds for Cancer Research UK and uses staggered wave starts; participants must be 13 or older.

A Pretty Muddy 5k obstacle course at Lydiard Park on 01 May 2027 featuring mixed paths, hills and muddy obstacles. The event has wave starts, blue badge parking on grass and a minimum fundraising target of £50.

An official Backyard Ultra at Blaise Castle Estate on 1 May 2027 where runners complete a 6.7056 km loop each hour until one runner remains. The woodland loop is hilly and technical, head torches are mandatory at night and minimum age is 20..