Trail Running calendar near Haverfordwest 2025-2026

We have found 69 Trailruns within 80 miles of Haverfordwest. See below where and when you can find the races.

The Warhorse will take place in Braunton on Sunday 21 September 2025.

The Doone Run is a renowned 10-mile (16km) trail race held in the scenic Doone Valley within Exmoor National Park, near Lynmouth, England. Organized by Ilfracombe Running Club, this event features a challenging multi-terrain course that includes coastal paths, wooded riverside banks, and varied trai..

October 2025

The North Coast 110 is a challenging ultra marathon event held along the true North Coast of the South West peninsula in the UK, featuring four distance options: 110 miles, 110 km, 65 km, and 55 km. The race follows the scenic South West Coast Path, with routes showcasing dramatic coastal views, inc..

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The Exmoor Coast 55 is a 55 km ultra marathon held along the South West Coast Path, starting at Combe Martin and finishing in Minehead. This scenic route traverses the entire length of Exmoor National Park, featuring England's longest stretch of coastal woodland, the highest coastal point at Culbone..

The Gower Ultra 50, Ultra Bach, and Trail Race are three long-distance trail running events held in the Gower Area of Outstanding Natural Beauty (AONB) in Wales. Following the Wales Coast Path, the races showcase stunning coastal scenery including beaches, bays, coves, farmland, and fishing villages..

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The Rad Dau Gopa Aberystwyth Twin Peaks Race is a running event held on Aberystwyth Promenade, featuring both senior and junior races. The senior race covers 11.7 km (7.3 miles) with 237 meters of climbing, traversing mixed terrain that includes mostly on-road sections and some off-road paths. The c..

The Scare Bear Run in Aberdare, hosted by Saturn Running, is a unique 7-hour time challenge event set in the scenic Dare Valley Country Park. Participants can choose their distance, starting from a minimum of 3km, with laps of approximately 4.37 miles (7km) on well-maintained paths offering beautifu..

The Black Beacon Mountain Trail Races are challenging long-distance running events held in South Wales, crossing the Brecon Beacons and Black Mountains National Parks. Starting in Hay on Wye, the races offer four distances: 100 miles (+7500m ascent), 50 miles (+3750m ascent), 50 km (+2200m ascent),..

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November 2025

The OTT Ultra Marathon is a challenging 30-mile trail race set in the scenic Brecon Beacons, South Wales. Starting in Merthyr Tydfil, the course follows the Taff Trail and riverside paths before ascending to Pen y Fan, the highest peak in South Wales at 886 meters. Runners then descend via Jacobs La..

Endurancelife Gower offers a series of trail running events set in the stunning Gower Peninsula, the UK's first designated Area of Outstanding Natural Beauty. Participants can choose from 10K, half marathon, marathon, and ultra distances, all featuring challenging terrain including grass, moor, beac..

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The Beacons Ultra is a challenging trail running event held in November in Talybont-on-Usk, Powys, at the foothills of the Brecon Beacons. It offers three race distances: a 49-mile ultra featuring two loops of a 23-mile course with an out-and-back climb to Pen y Fan, a 26-mile marathon covering a si..

The Trails & Tarmac 12hr Backyard Ultra is a challenging endurance running event held near Crickhowell in Powys, UK, set in the scenic Black Mountains. The race features a 4.2-mile loop combining 50% trail and 50% tarmac, with mostly flat terrain, one gradual climb, and a short steep section, design..

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..

Dusk Till Dawn The Winter Edition is a challenging 12-hour running event held at Bridgend Miniature Railway in South Wales. Participants tackle three distinct 10-mile mixed terrain routes, aiming to complete as many loops as possible from dusk until dawn. The course features hills, technical downhil..

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...

The MT10 (Multi-Terrain 10) is a 10-mile (16 km) off-road trail run held at Pembrey Country Park and along Cefn Sidan Beach in Carmarthenshire. The course features a mix of soil and firm sand surfaces, providing a varied terrain that accommodates runners of all abilities. Set in a scenic natural env..

The Smurf Run in Aberdare, Wales, is a unique 7-hour time challenge event hosted by Saturn Running at the scenic Dare Valley Country Park. Participants can choose their distance, starting from a minimum of 3km, with laps of approximately 7km (4.37 miles) on well-maintained footpaths offering beautif..

The Combe Crawler is a challenging 8.5-mile (13.6 km) cross-country race held annually in Ilfracombe, North Devon. Known for its hilly terrain, the course features steep coastal paths and stunning countryside views, making it a true test of endurance for runners of all abilities. The race typically..

December 2025

The Secret Santa Series is a festive trail running event held in the Brecon Beacons National Park, starting and finishing at Cwmdu Village Hall, Powys. It offers three challenging distances: 14 km (Figgy Pud), 10 miles (Turkey Ten Mile), and a half marathon (Du Mulled Wine), with significant elevati..

The Celtic Trail Races, held annually at Dare Valley Country Park in Aberdare, South Wales, offer a festive trail running experience with three distances: a 34-mile ultra, a 26-mile marathon, and a 13-mile half marathon. The courses traverse rugged, ancient Celtic tracks through Afan Forest and the..