Trail Running calendar near Haverfordwest 2026-2027

We have found 100 Trailruns within 80 miles of Haverfordwest. See below where and when you can find the races.

Experience a multi terrain race over Pen Dinas and Constitution Hill starting from the Aberystwyth Promenade. With distances for both seniors and juniors, runners face climbs on gravel, grass, and rocky paths with coastal views.

A 7 hour Time Challenge at Dare Valley Country Park offering flexible distances from 3km up to 50km. The event includes themed medals, finishers' goody bags with a vegan option, aid stations, free parking and basic venue facilities.

Cadair X is a 13.1 mile mountain half marathon with 1165 m of ascent that climbs to the 893 m summit of Cadair Idris. The marked route crosses woodland, glacial lakes and technical summit terrain and a GPX file is available.

Join the Aberfan Memorial Run in Merthyr Tydfil to honour the 1966 victims and support the Aberfan Memorial Charity. Choose 5 km to ultra on a scenic tarmac loop along the Taff Trail with flexible start times and official timing.

Trail races at Oxwich Bay with a self-navigated half marathon plus marked 10k and 5k routes. The event is postponed and a new date will be announced.

A memorial road and off road event organised by Green Events featuring a half marathon and a 12k in mountainous scenery. The race is cupless, open to those over 16, and lists online and on the day entry options.

Day one of a two day mountain marathon at Westermill Farm, Exford, featuring a 40 km course with 1800 m of climb. Teams of two must pre-enter and the entry fee covers both race days and campsite.

A 32 km, 1800 m mountain challenge on Pen y Fan with three ascents using six different routes. Two categories are offered, including a 16 kg weighted option, and navigation between control points is the participant's responsibility.

November 2026

A multi-distance coastal ultra weekend in November 2026 with routes from 38 km to 110 miles, running along the North Coast and across Exmoor to finish in Minehead. Options include technical coastal trails, estuary flats and significant elev..

Trail races at Oxwich Bay on 7 November 2026 offering 10K, half, marathon and ultra routes across grass, moor, beach and rock. Finishers earn points toward the Endurancelife season leaderboard.

A mixed terrain running event around the Brecon Beacons on 7 November 2026, held across trail, mountain, canal and road. Three distances are offered and conditions in mid-November can range from bright sunshine to freezing temperatures with..

Experience a 30 mile ultra marathon through the heart of the Brecon Beacons featuring the summit of Pen y Fan. This trail event offers technical terrain and scenic reservoir views with a strict 200 runner limit.

A weekend of self navigated trail races along the North Devon and Exmoor coast on 7 and 8 November 2026, with distances from 38 km to 110 miles and GPS tracking provided for all routes.

Trail Half Marathon Wales runs in Margam Country Park and Forest on 14 November 2026, offering a fully marked half marathon and 10k on forest trails with checkpoints, safety cover, and included car parking.

An 8.8 km fell race with 714 m of ascent around Llyn y Fan across remote moorland, requiring navigation and mountain skills. Limited to 50 runners, with entry refunds for car share and cyclists.

A seven hour Time Challenge at Dare Valley Country Park where participants choose their distance. Medals for 3 km finishers, distance pins for longer efforts, goody bags with vegan options, aid tables and free parking.

The final race of the 2026 RTT Series takes place in Afan Forest with separate 5 km and 10 km routes from Bryn Bettws Lodge. The event features chip timing, finisher medals, marked and marshalled routes and water stations.

Ras Y Mast is a club organised running event held at Blaenwern Holiday Centre in Llanybydder, Ceredigion, featuring a mixed surface course of 6.5 miles and separate junior and senior races.

A lap based road event at Rhydycar, Merthyr Tydfil, on a 5.3 km AUKCM certified tarmac circuit along the Taff Trail. Runners choose how many laps to complete within a seven hour limit and can opt for a no medal entry.

December 2026

Winter trail races through Afan Forest and the Rhigos range finishing at Dare Valley Country Park. Options include a 34 mile ultra, a marathon and a linear half with marked routes, checkpoints and a compulsory kit list.

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