Trail Running calendar near Narberth 2026-2027

A 7 hour Time Challenge at Dare Valley Country Park on 28 February 2027 offering flexible distances from 3 km up to ultra and 50 km, with medals, distance pins, goody bags and on-course aid at each lap.

Marked trail runs in the Black Mountains from Crickhowell, Powys, with 10, 20 and 40 mile options, stocked checkpoints, mandatory kit checks and cut off times of 5, 8 and 16 hours respectively.

Three long distance mountain trail races start and finish in Brecon, following circular routes through the Brecon Beacons National Park. Distances range from a marathon to a 100 km ultra with marked routes, checkpoints and compulsory kit re..

The Pendine Sands Races stage beach out-and-back events over 5k, 10k and a half marathon on firm sand, with flagged distances, cup-free water stations, bespoke finisher medals and category trophies.

A 50 km women focused event in Pwllheli on 17 April 2027 with a strict no-crew policy, minimum age 18, limited refund rules, and recommended third-party insurance.

A trail running event using the West Somerset Railway steam line, offering *11 km*, *11 miles* and a full marathon. Runners travel by steam train to their start points and finish outside Minehead Station, with routes through the Quantock Hi..

A trail running event in the Brecon Beacons on 17 April 2027 offering marked 10, 20 and 40 mile routes from Henderson Hall with well stocked checkpoints, mandatory kit checks and canicross-friendly entries.

A last-person-standing Backyard Ultra at the Medieval Village, Cosmeston Lakes: runners repeat a fixed **6706 m** loop each hour until one athlete completes one more loop than anyone else. Camping and on-site facilities are provided.

Three coastal trail races on the Vale of Glamorgan coast on 24 April 2027, including a 32.5 mile ultra, 18.5 mile trail and 10 mile route. The course follows the Wales Coast Path and finishes at Ogmore-by-Sea Village Hall.

A 5k obstacle course at Coopers Field, Bute Park, Cardiff, with tarmac paths and grassy sections that can get boggy after rain. The event raises funds for Cancer Research UK and uses staggered wave starts; participants must be 13 or older.

Trail routes from 5 km to 56 km traverse Exmoor coastline and inland valleys with steep climbs and technical terrain. The event offers marked courses, outposts and onsite camping, and a portion of entries supports CareMoor.

Margam Wild Trail Runs at Margam Country Park on 23 May 2027 offers 5 km, 10 km and half marathon trail routes, is canicross friendly, uses live chip timing, and provides medals and post-race refreshments.

A 50 mile challenge at Dare Valley Country Park as part of the inaugural Welsh Festival Of Running. Runners have up to 24 hours to complete the distance on a 5 mile loop with aid stations and rest facilities.

Trail running on the Heart of Wales Line from Llandrindod Wells to Craven Arms with 50, 26 and 16 mile options. The inaugural event is scheduled for 29 May 2027 and entries open 1 June 2026.

A 10 hour loop endurance race on Mynydd Troed featuring a technical 2.7 mile circuit with over 1000 ft of climbing per lap. Solo, pair and four person team entries count laps collectively under a strict 10 hour cutoff.

An ultramarathon weekend in the United Kingdom on 24–25 July 2027 offering **100 km** and **100 mile** options. The event is organised by GB ULTRAS Ltd and appears in the Ultra Great Britain Race Series with GPS tracking.