Trail Running calendar near Builth Wells 2026-2027

Join a weekend fell and trail running retreat in the Black Mountains, Wales from 27 Feb to 1 Mar 2026 at Dinas Castle Inn. Guided runs on the Dragons Back ridge, skills coaching and bunkhouse accommodation make for an inspiring weekend for..

The Castle 2 Castle #Ultra is a 32-mile running challenge connecting Welshpool to Chirk. Starting at Powis Estate, the route mixes flat paths with gentle inclines. Finishers are rewarded with a commemorative plate at Caffi Wylfa.

Take on the Cannock Chase Wildwood Trail Series on 28 Feb 2026 at Birches Valley, a scenic yet testing woodland course with steep climbs, fast descents and technical, muddy trails. Half and 10K with canicross options and eco wooden medals.

A point-to-point, fully marked long-distance race along the Taff Trail from the Brecon Beacons to Nantgarw, covering about 70 km. The course mixes upland trails and valley cycle paths, with six checkpoints and a Merthyr drop bag for mid-rac..

Two winter mountain races between Brecon and Cardiff. The Brecon to Cardiff Xtreme is about 75 km (47.5 miles) over 11 summits with roughly 2680 m ascent, while the Taff Xtreme Marathon covers the second half at about 26.2 miles and 1300 m..

Tackle mud, hills, and a stream crossing on this annual multi-terrain challenge over approximately 6 miles at Baggeridge Country Park. It's organised by the cardiac rehabilitation charity Action Heart. A friendly, gritty event with a 90-min..

Celebrate St David's Day with a flexible 7-hour time challenge run in Wales' scenic Dare Valley Country Park. Choose your own distance on well-maintained footpaths and earn a medal for any run over 3 km. Free parking, an aid station, and go..

The North Wales Pilgrims Half Marathon on 1 March 2026 is a 21km trail run along the coastal Pilgrim’s Trail. With no time limits, it is open to runners and hikers. Completing it as part of the Pilgrims Challenge leads to special recognitio..

The MTC Winter Green Man Ultra offers 30 and 45-mile loops on Bristol's Community Forest Path. With four checkpoints and pacers guiding various finish times, it's a winter ultramarathon challenge. All finishers receive a medal and technical..

Trail races at Loggerheads Country Park in March 2026 offering 5 km, 5 km Canicross and a new 10 km course across riverside paths, rocky sections and stair climbs for varied trail running conditions.

Take on the 13th edition of the Dirty Dozen, a 12km off-road trail run through the rugged landscape of Cannock Chase. The figure-eight course passes forest paths, stone tracks, and the infamous Ditch of Doom. A shorter kids' race also offer..

Tackle a scenic but testing 6.8 km fell course around Dolgarrog with 417 m of climb, hosted at Canolfan Porthlwyd. Entry on the day; minimum age 16 makes it perfect for adventurous runners.

Tackle 580m of ascent on this challenging 7.8km fell race through Carding Mill Valley. Part of the Shropshire Winter Series, it features rocky tracks and steep descents. Full mandatory kit is required for all participants.

A community-focused 10 km event in Abersoch on 8 March 2026 that welcomes running, jogging and walking with no cut-off times. Cancer information packs and on-site support are provided; entry fee is £20.

A flexible three day running event based at The Unicorn Inn in Telford with options of 8 miles, a half marathonish distance or a full marathon across one, two or three days, and a ticket range from about £42 to £115.

Join the 9th edition of the Nant yr Arian Silver Trail Races in the scenic Cambrian mountains. Choose from a half marathon or 10 km on fully marked, varied terrain, with separate fun runs for juniors. The family friendly event supports loca..

Run on the private trails of the Brynkinalt Estate. This two-day festival in March features canicross and standard trail running events over 5 km and 10 km distances, with a finish line at the historic hall.

Tackle the trails of Wales's Black Mountains on a choice of 11, 20, or 40-mile marked courses. The event starts from Longtown Hall and welcomes canicross runners. Expect fully stocked checkpoints and a mandatory kit for the mountain environ..

Run under the stars on the trails of Arlington Court. Choose between a 6km or 12km night-time loop, with head torches lighting the way through the hilly estate. Keep an eye out for local wildlife like owls and deer as you race.

This mountain race in the Dee Valley covers just over 6 miles with 2100ft of ascent, following the Llantysilio ridge to the summit of Moel y Gamelin. It's a fell run under WFRA rules, requiring full waterproofs and safety kit. The event sta..