Trail Running calendar near Builth Wells 2026-2027

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 undulating trails, muddy paths and a shallow stream crossing on an adventurous six mile route at Baggeridge Country Park. Join the Action Heart Tuff Un on 1 March 2026 to test yourself and support a West Midlands cardiac charity.

Celebrate St David's Day with the Dragon Run at Dare Valley Country Park on 1 March 2026, choose from 3 km to ultra distances or tackle a flexible 7 hour time challenge. Enjoy scenic footpaths, aid stations, medals and vegan goody bags.

Join a scenic half marathon from Cwt Tatws to Aberdaron along coastal and quiet inland trails for stunning views and a friendly vibe. Finishers get a Celtic medal and event tee while supporting The DPJ Foundation and Neuroendocrine Cancer U..

A winter trail ultra around Bristol with 45 mile and 30 mile self navigated routes, staffed checkpoints, mandatory kit checks and bespoke finishers medals and technical T shirts.

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.

Run the Scott Sports Dirty Dozen, a 12 km loop across Cannock Chase with muddy singletrack, climbs, fast descents and the notorious Ditch of Doom. Kids course, on site parking and a bespoke finisher medal complete the day.

A short mountain race in Dolgarrog covering 6.8 km with 417 m of ascent. The 2026 event served as the WFRA Short Welsh Championship and used online entry and electronic timing.

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.

Nant Yr Arian Silver Trail in the Cambrian Mountains offers Half Marathon and 10 km trail races plus junior races for several age groups. Routes are waymarked with feed stations and marshals and the event supports local charities.

Trail running and canicross across the private Brynkinalt Estate with approximate 5k and 10k routes, scenic terrain, on site parking and medals for finishers.

Trail event in the Black Mountains offering marked 11, 20 and 40 mile routes with GPX files, stocked checkpoints, mandatory kit checks and canicross-friendly provisions.

A starlit night trail at Arlington Court in North Devon, organised by Ilfracombe Running Club, with 6 km and 12 km loop options. Mandatory headtorch and trail shoes, age limits apply, and a 50 minute first-loop cut off for the 12 km.

Held in the Dee Valley on Saturday 14 March 2026, this fell race covers just over 6 miles with 2100 ft of ascent along the Llantysilio Mountain ridge. The route reaches Moel y Gamelin at 1893 ft and is run under WFRA rules with required saf..

Explore ancient trees and rolling trails in Wyre Forest on 15 March 2026 with a half marathon or a 7.6 mile Super Seven. Enjoy timed, fully marshalled courses, finishers medals and a friendly forest atmosphere with cafe and on course suppor..

Join the Dashing Dog Charity Run in March at Dare Valley Country Park for a scenic 7 hour time challenge from 3 km to ultra. Run on well kept trails with aid stations and free parking while supporting local dog rehoming charities.

Finish the season in style at West Glamorgan XC League Round 5, the final 5 mile race of the 2025/2026 series at scenic Gnoll Park in Neath on 15 March 2026. Hosted by Neath Harriers, this club focused cross country event promises a fun, ch..

Join the Pendock Spring Chicken Run on 15 March 2026 for scenic Worcestershire routes with 10K, 5K and a 1K fun run for all ages. Enjoy medals, prizes and help raise funds for the local school.

Fifth and final West Glamorgan XC League race at Amman Valley Trotting Club in Tairgwaith on 15 March 2026. A 5 mile cross country organised by Neath Harriers with free parking, a cafe, and no on the day entry.