Trail Running calendar near Pembrokeshire 2025-2026

We have found 81 Trailruns within 80 miles of Pembrokeshire. See below where and when you can find the races.

The DirtRun Wyre Wizard Trail Half Marathon is set to return for its ninth edition in Autumn 2025, taking place at the scenic Wyre Forest, Callow Hill Visitor Centre. Participants can choose between a challenging 13-mile half marathon or a shorter 7.6-mile Super Seven route. The event promises a mem..

The Black Beacon Mountain Trail Races are long-distance running events set in the stunning landscapes of the Bannau Brycheiniog (Brecon Beacons) and Black Mountains. Participants can choose from four race distances: a 21-mile trail race, a 50k ultra, a 50-mile ultramarathon, and a challenging 100-mi..

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November 2025

The OTT Ultra Marathon is a challenging 30-mile trail race set in the stunning Brecon Beacons, known for its scenic and technical trails. The course begins at Cyfartha Castle and follows the Taff Trail, leading participants alongside the River Taff and up to the summit of Pen y Fan, the highest peak..

The Beacons Ultra is a thrilling running event featuring three race distances: a 49-mile ultra, a 26-mile marathon, and a 13-mile half marathon. Set in the picturesque town of Talybont-On-Usk, nestled in the Brecon Beacons, the event showcases a mix of trails, mountains, canals, and roads. Participa..

Endurancelife Gower offers a series of trail running events, including a 10K, half marathon, marathon, and ultra marathon, set in the stunning natural landscape of Gower, an Area of Outstanding Natural Beauty. Participants will experience diverse terrains, including cliff tops, woodlands, and sandy..

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Dusk Till Dawn The Winter Edition is an exciting running event organized by Mad Running Junkies, set in the scenic Bridgend, South Wales. Participants will tackle three 10-mile routes over a challenging 12-hour period, starting at dusk and finishing at dawn. This event is designed for those looking..

The Trails & Tarmac 12hr Backyard Ultra is an exciting endurance running event set in the scenic Black Mountains near Crickhowell, Powys. Participants will tackle a 4.2-mile loop, completing as many laps as possible within a 12-hour timeframe. The first 11 laps must be finished within an hour each,..

The Margam Trail Races, organized by Trail Revolution, will take place in Margam Park on November 15, 2025. This event features a variety of race distances, including 5km, 10km, and a half marathon, designed to challenge participants on the park's scenic forest paths and woodland trails. The course..

The Lobster Lollop is a family-friendly trail running event supporting the National Lobster Hatchery in Padstow. Taking place on November 15, 2025, it offers various distances including 2.5k, 5k, 10k, and 10 miles, with additional Canicross categories for some distances. The event features a no-pres..

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 ideal experience for both seasoned athletes and newcomers...

December 2025

The Secret Santa Tinsel Half Marathon, along with the Tinsel Twelve 12k and Turkey Ten miles, is an exciting running event set in the scenic Brecon Beacons National Park. Participants will enjoy beautiful trails starting from the historic Tretower Court & Castle, with routes offering stunning views..

The Celtic Trail Races 2025, held in Aberdare, Wales, is a festive trail running event featuring three race options: a 50k ultra, a marathon, and a half marathon. The courses traverse scenic areas including Afan Forest, Rhigos Mountain, and the Brecon Beacons, with routes passing ancient Celtic trac..

The Nightmare Before Xmas Trail ½ Marathon is a challenging running event set to take place at the Bridgend Miniature Railway Centre. Participants will tackle a mixed terrain course that includes an 8-mile section known as The Hateful Eight, followed by an additional 5 miles filled with obstacles li..

January 2026

Endurancelife's North Cornwall event offers a thrilling trail running experience set against the stunning backdrop of the rugged coastline. Based in Polzeath, participants can choose from four distances: 10K, Half Marathon, Marathon, and Ultra, each featuring significant elevation gains and breathta..

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The Cardiff Trail 10k is an exciting running event set against the stunning backdrop of Castell Coch. Scheduled for January 18, 2026, this newly introduced race offers participants a unique blend of competition and natural beauty, making it an ideal choice for both experienced runners and newcomers...

February 2026

The Dartmoor Winter Traverse is a challenging running and walking event that takes place across the stunning and remote landscapes of Dartmoor. Participants can choose between a 50 km route from South to North or a 30 km option starting from Princetown. The event is designed for both runners and wal..

March 2026

The St David's Day Dragon Run 2026, hosted by Saturn Running, takes place in the scenic Dare Valley Country Park, Aberdare, Wales. Celebrating the patron saint of Wales, this event offers a unique 7-hour time challenge where participants can choose their running distance, starting from a minimum of..

The Nant Yr Arian Silver Trail Races, set in the stunning Cambrian Mountains, offer participants a choice of challenging routes, including a Half Marathon and a 10km race, suitable for both beginners and experienced runners. The event also features children's races for various age groups. With fully..

April 2026

The Pendine Sands Races 2026 is a coastal running event offering various race options, including a marathon, half marathon, 10k, and 5k, all held on the beach. Organized by Every Mile Counts Ltd, the event provides opportunities for individual and group entries, with registration fees ranging from £..

The MTC Afanc is a challenging ultra marathon event covering approximately 39.8 miles, part of the Mount to Coast End to End Challenge Series. This race takes participants from Glasbury to Merthyr Tydfil, following the scenic National Cycle Route 8. It is also recognized as Day 5 of the CYMRUN, a si..