Trail Running calendar near Pembrokeshire 2025-2026

We have found 89 Trailruns within 80 miles of Pembrokeshire. See below where and when you can find the races.

Run the Beacons Ultra, Marathon or Half on 8 November 2025 from Talybont on Usk, Powys. Varied trails, mountain climbs and canal paths take you to Pen Y Fan and the reservoir for a scenic, challenging autumn outing.

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Endurancelife Gower at Oxwich Bay on 8 November 2025 invites runners to tackle stunning cliff top, woodland and beach trails across challenging terrain. Choose from 10K to ultra distances and finish with sea views and a medal.

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Take on the Trails and Tarmac 12 Hour Backyard Ultra in Crickhowell, a scenic 4.2 mile loop blending trail and tarmac to test your pacing and endurance. Run hourly laps for up to 12 hours with hot food, facilities and a trophy for the final..

Run forest trails at Margam Country Park on 15 November 2025, choosing from 21 km, 10 km or 5 km routes. Fully marked courses with checkpoints and GPS files; entries include parking, timing, a medal and free photos.

Join the Lobster Lollop in Padstow on 15 November 2025 for a family friendly trail run along the Camel Trail supporting the National Lobster Hatchery. Multiple distances, medals and free race photos make it a fun day for all.

Take on the MT10, a scenic 10 miles off road trail through Pembrey Country Park and along Cefn Sidan Beach. Expect mixed soil and firm sand, sea breezes and wide open views for a memorable coastal run on 16 November 2025.

The Cardiff Trail Half Marathon is an exciting running event set against the stunning backdrop of Castell Coch. Scheduled for November 16, 2025, this newly introduced race offers a unique blend of competition and scenic beauty, making it an..

Join the Smurf Run at Dare Valley Country Park for a seven hour Time Challenge where you choose how many laps to tackle and soak up scenic country views. Complete a lap to earn a themed medal and enjoy on course refreshments.

Tackle the Combe Crawler, a 13.6 km (8.5 miles) coastal and woodland trail race in Ilfracombe on 23 November 2025. Limited to 200 runners, this marshalled charity race mixes steep coastal paths and fields for a scenic, testing challenge.

Explore Afan Forest on hand picked trails with 5K and 10K options at the RTT Afan Forest run. Fully marked and marshalled courses, chip timing and a finisher medal make this a rewarding, well organised trail day for all abilities.

December 2025

Celebrate the season on rugged Black Mountains trails at the Secret Santa Festive Trail Series. Three scenic but technical distances, bespoke medals, mulled wine and full on course support make for a memorable winter run.

Pick 14 km, 10 miles or a half marathon from Cwmdu across the Black Mountains with rocky single track, boggy moorland and stunning views. Well marked with checkpoints and medical cover, this scenic but testing trail welcomes dogs on leads.

Explore the sand dunes and complex contours of Braunton Burrows at a colour coded orienteering on Sunday 7 December 2025, part of the Devon League. Courses for all abilities and car sharing available.

The Night Nobbler is a 10km night trail near Narberth returning to its original woods under the RERUN theme. Dress in upcycled fancy dress for solo or group prizes and bring a head torch and phone for this atmospheric after dark run.

Join the Stag Challenge in Bridestowe on 13 December 2025 for a timed run along a scenic disused train line with mixed off road and paved terrain. Walk or run as many 5.3 km laps as you can within the time limits and claim a finisher medal.

Choose from three challenging trail distances through Afan Forest, the Rhigos mountains and Coed Morgannwg Way, featuring climbs, long descents and river crossings. Finish at scenic Dare Valley Country Park on 13 December 2025.

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Run the spooky A Nightmare Before Xmas Trail half marathon in Bridgend on 20 December 2025, a festive mixed terrain course with hills, mud and scenic road views. Limited to 50 runners, with an eight mile option, mulled wine and a prize for..

Join the Santa Run Wales at Dare Valley Country Park on 20 December 2025 for a family friendly 3 km on scenic footpaths. Enjoy festive music, fancy dress prizes, mince pies and a themed medal at the finish.

January 2026

Take on upland trails in the Elan and Claerwen Valleys with an annual 12 and 20 mile walking and running challenge. Parts of the route are waymarked and map reading skills are needed; route maps and GPX files are sent to entrants in advance..

Run the North Cornwall coast from Polzeath beach past dramatic cliffs, sandy bays and fishing villages for a scenic but demanding trail. Choose 10K to ultra distances with big climbs, chip timing and leaderboard points.

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