Trail Running calendar near Haverfordwest 2026-2027

Take on the Red Warrior multi terrain races at Margam Country Park on 22 March 2026, with 5K, 10K and 20K routes for solo runners and canicross teams. Expect varied trails, friendly vibes and a great day out for competitors and their dogs a..

Celebrate a birthday with a Cakeathon in South Wales. Run or walk a flexible number of laps on a 5.3km course through Parc Taf Bargoed. Choose your distance and enjoy a 7-hour event with a finisher's medal and cake.

Experience a trail run through the UNESCO Dyfi Biosphere and along the Wales Coast Path. This event features a half marathon and a two lap marathon with 850m of elevation gain in the stunning Snowdonia National Park.

Experience the unique challenge of racing on the firm sands of Pendine Beach. Choose from five distances ranging from 5k to an ultra marathon on a course famous for land speed records.

Enjoy a unique trail running event where you ride a heritage steam train to your start line before racing back to Minehead along the beautiful Somerset coastline and Quantock Hills.

Experience the dramatic cliffs and hidden coves of the Glamorgan Heritage Coast with three distance options along the Wales Coast Path ending at Ogmore by sea.

Experience the rugged beauty of the Gower Peninsula with a self navigation half marathon or marked trail runs of 10km and 5km. Enjoy coastal paths and woodland trails starting from the scenic Oxwich Bay.

A 50km ultra run starting and finishing in Pwllheli. The event has a strict no-crew policy and requires mandatory kit. Registration includes a specific refund policy and the option for bib transfers with a fee.

The MTC Afanc is a 40-mile ultra marathon along National Cycle Route 8 in Wales. It is also the fifth stage of the challenging six-day CYMRUN event. Runners must be prepared for a cup-free race with strict pace requirements and a full manda..

Experience the rugged beauty of Brecon Beacons National Park with a choice of 10, 20, or 40 mile trail races. Navigate mountain ridges and forest paths in this supported event starting from Gilestone Farm.

The Route The MTC Y Draig Goch is a 34.8-mile (approximately 35-mile) ultra run. The route starts at the Travelodge in Merthyr Tydfil and follows National Cycle Route 8 all the way to Cardiff. The course then continues to the finish line at..

Run along the wild coastal paths of Pembrokeshire National Park in this trail event. Choose from 10K, half marathon, marathon, or ultra distances on 25 April 2026. Earn points for the season leaderboard and join the afterparty in Little Hav..

Run your own distance on a 7-hour timed course through Parc Taf Bargoed in South Wales. Choose from 5k to ultra on a flexible, scenic loop starting from Trelewis. Walkers and runners are welcome with staggered starts and full event support.

Enjoy a flexible 7 hour time challenge at Dare Valley Country Park with distances ranging from 3km to ultra marathon. Run or walk through scenic countryside on well maintained paths and celebrate with a themed medal and ice cream.

Experience a mountain adventure through the Bannau Brycheiniog National Park with circular routes starting in Brecon. Choose between 100km, 75km, or marathon distances featuring significant elevation and iconic ridge traverses.

Experience 30 miles of Welsh beauty on a circular route from Llanidloes. This inclusive trail event features 4,356 feet of elevation gain with no time limits and fully stocked checkpoints.

Experience the dramatic coastline and steep moorland of Exmoor National Park across five trail distances. Run past towering cliffs and through the Valley of Rocks on technical terrain starting from Lynton.

The Sirhowy Challenge is a 10 mile multi-terrain race featuring a 1,500ft climb to Machen Trig Point. Participants enjoy a scenic loop through the Sirhowy valley with awards and a finishers social at the local club.

Experience a challenging 12 mile off road run through the private Clovelly Estate. This scenic course features ancient woodlands, coastal cliffs, and a final climb up Clovelly's famous cobbled street to support the RNLI.

Test your endurance on a technical 3.2 mile mountain loop at Mynydd Troed. Complete as many laps as possible within ten hours as a solo runner or part of a team in the heart of the Black Mountains.