Trail Running Calendar Wales 2026-2027

A trail Half Marathon and 10K on Anglesey on 1 November 2026, with routes through Newborough Forest and along Llanddwyn Beach offering views across the Menai Strait to Eryri. The event includes marked courses, marshals, an event village and..

Night fell race at Llandegla Forest covering 6.4 km with 229 m of climb. Entry is £5 on the day and runners must carry compulsory kit including a headtorch with at least two hours of light.

Coastal trail running at Oxwich Bay (Gower AONB) on 7 November 2026, with four distances from 10K to 34.2 miles across cliffs, dunes and woodland. Finishes earn points toward the Endurancelife 26-27 season leaderboard.

Three trail races in November around Talybont on Usk and the Brecon Beacons, from a 13 mile half to a 49 mile ultra, all on mixed terrain with substantial ascent.

A 6 mile out and back fell race with 1900 feet of ascent around Rhobell Fawr, starting and finishing at Llanfachreth village hall. It opens the Meirionnydd Winter Race Series and requires full WFRA kit and fell shoes.

Experience a 30 mile ultra marathon through the heart of the Brecon Beacons featuring the summit of Pen y Fan. This trail event offers technical terrain and scenic reservoir views with a strict 200 runner limit.

Experience the Pen Llyn Ultra Winter Edition in November 2026. This Coast 2 Coast event offers a 37.5 mile solo ultra-marathon or a team entry for groups of four through a scenic winter landscape.

A fell race from Cilcain Village Hall over 15.7 km with around 950 m of ascent, requiring navigational skills and prior experience; facilities include toilets and refreshments, and team entries have no charge.

Held in Porth Penrhyn, Bangor on 14-15 November 2026, Slate Trail Ultra offers two trail races of 147 km and 80 km along the Snowdonia Slate Trail with substantial elevation gain and organised aid stations.

Challenge yourself at Trail Revolution Margam on 14 November 2026 at Margam Country Park, choosing from 5k, 10k or half marathon routes through scenic woodland trails. Fully marked and chip timed with medals, photos and on course support.

A guided 55 km route on Anglesey visiting three of the island's highest tops, with over 2000 m of ascent across coastal and inland trails. The day is split into five sections with checkpoint support, guides, a wooden medal and certificate.

An 8.8 km fell race with 714 m of ascent around Llyn y Fan across remote moorland, requiring navigation and mountain skills. Limited to 50 runners, with entry refunds for car share and cyclists.

A 16.1 km fell race from Capelulo with about 594 m of ascent on partially marked terrain where navigation and experience are required. Entry is online only with a £12 fee and participants must be over 18.

Saturn Running holds The Smurf Run at Dare Valley Country Park in Aberdare offering a 7 hour time challenge with distances from 3 km up to 50 km. The event features themed medals and pins, finisher goody bags and aid tables with vegan optio..

A half marathon at Loggerheads Country Park run as three laps of a 7 km loop, with solo and three person relay options, feed stations on each circuit and a medal for all finishers.

A short but steep fell race near Llanfoist and Abergavenny covering 5.7 km with 485 m of ascent. The course is mostly unmarked, needs basic navigation and can be affected by poor weather.

The final race of the 2026 RTT Series at Bryn Bettws Lodge features separate 5 km and 10 km forest trail routes with chip timing, water stations and a finisher's medal, and will decide the overall RTT standings.

Ras Y Mast is a club-organised running event at Blaenwern Holiday Centre in Llanybydder, Ceredigion. The senior course is 6.5 miles on mixed surfaces, with separate junior races and historical results available back to 1998.

Dash in the Dark Race 2 is a 6.4 km fell run with 229 m ascent at Llandegla Forest. A safety briefing is provided and a headtorch with at least two hours' lighting is compulsory.

Marked and marshalled winter trail races at Alyn Waters in December, offering 5 km and 10 km courses. The event is chip timed, includes a free 1 km children's dash and a canicross 5 km option, and is open to all abilities.