Trail Running Calendar Wales 2026-2027

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.

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.

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.

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.

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.

Trail races along Offa's Dyke from Prestatyn seafront to summit finishes. Offers Half Marathon, Full Marathon and a 55.5 km Ultra with GPS tracking, coach travel options and a mandatory minimum kit list.

Run the Trail by Torchlight in Llangollen: an 8 km fell race over scenic starlit moor with about 244 m ascent. Bring a head torch and enjoy a lively night race open to runners aged 16 and over.

Three fully marked trail races through Afan Forest and the Rhigos range finishing at Dare Valley Country Park. Routes include steep climbs, river crossings and long descents with timed tracking, checkpoints and finishers medals.

Trail half marathon near Bridgend on 19 December 2026 with an 8 mile section plus about 5 extra miles of mixed terrain. Entry is limited to 70 runners and minimum age is 17.

A festive family-friendly fun run at Dare Valley Country Park with 2.5 km and 5.0 km routes. Finishers receive a themed medal and goody bag; the event includes an aid table, toilets, a café and free parking.

A pre-Christmas trail on Moel Famau starting and finishing at Bwlch Penbarras, with a mystery route of 6 to 12 km revealed during the race and a Canicross event before the main pack. Finishers receive a mince pie and a festive medal.

A Backyard Ultra near Crickhowell using 4.167 mile loops, eleven timed laps and a final race on the twelfth lap, with food, aid at HQ, medals including a 32 mile ultra award, and a 12 hour cap.

A 7 hour Time Challenge at Dare Valley Country Park offering flexible distances from 3 km up to 50 km, with lap counting for half marathon, marathon and ultra. Finishers receive a medal and a goody bag, with vegan options available.

Three marked trail races from Crickhowell into the Black Mountains offering 10, 20 and 40 mile options with checkpoints, mandatory kit checks and GPX route files. Canicross is allowed under specific rules and the event provides medical supp..

Trail running at Loggerheads Country Park on 6 March 2027 with 5k, 5k canicross and a new 10km route. Varied terrain includes riverside paths, rocky sections and a stair climb of 110 steps.

Ras yr Aran is a 10 mile fell race with 3,100 feet of ascent and the final event in the Meirionnydd Winter Race Series. A junior race covers 3.25 km with 150 m ascent and a minimum age of 11. Parts of the upper course are unmarked and may r..

SheUltra on 17 April 2027 is a 50 km event in Pwllheli, UK. Entries list a £66 fee plus 6 percent booking charge; the event requires mandatory kit, medical fitness, and operates a strict no-crew no-pacers policy.