Merthyr Tydfil
Trail Running Calendar near Merthyr Tydfil 2026-2027
Explore the top trail runs near Merthyr Tydfil for 2026-2027! We've gathered 94 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.
January 2027
Lap-based timed event in Rhydycar, Merthyr Tydfil with a 5.3 km tarmac lap, distances from 5 km to ultra, timed over seven hours and a no-medal entry option.
A midwinter mixed terrain 6.4 miles off-road race around Cosmeston Lakes Country Park organised by Penarth and Dinas Runners under Welsh Athletics licence.
Lap-based timed event on 23 January 2027 at Parc Taf Bargoed offering distances from 5 km to ultra with a 7-hour time limit and flexible rock-up starts.
A seven hour time challenge at Dare Valley Country Park offering distances from 3 km to 50 km, with medals, aid stations and vegan goody bags.
A winter fell race near Abertillery: 9 km with 550 m climb, mandatory kit, flagged mandatory loop and navigational skills required.
Winter ultra in the Brecon Beacons on 30 January 2027 offering 75 mile and 100 mile routes starting from Penderyn Square in Merthyr Tydfil.
February 2027
A Backyard Ultra near Crickhowell on 6 February 2027 featuring repeated 4.2 mile loops, a reversed final race lap, trophies for final lap winners and medals from 32 miles.
Timed multi-lap run in Parc Taf Bargoed with 5.3 km laps and distances from 5 km to ultra, offering bespoke medals or a lower cost no medal entry.
Mountain to city winter running events from Brecon to Cardiff featuring a 75 km ultra and a 26.2 mile marathon with unmarked mountain navigation and checkpoint support.
A one way, fully marked 70k ultramarathon along the Taff Trail from Brecon to Nantgarw. The route moves from mountain landscapes to former industrial valleys and includes coach transfer to the start, checkpoints and live GPS tracking.
An approximately 8-mile multi terrain race around Sorbrook and Sluvad near Cwmbran with marshalled routes, medical cover, goody bags and age-category prizes.
A 7 hour time-challenge at Dare Valley Country Park offering looped distances from 3 km up to ultra, with medals, distance pins, goody bags and on-course aid.
March 2027
Trail running event in the Black Mountains with marked 10, 20 and 40 mile routes from Crickhowell, marshals, stocked checkpoints and strict mandatory kit requirements; canicross friendly and GPX routes available.
A 7 hour Time Challenge at Dare Valley Country Park offering distances from 3 km up to 50 km with themed medals, goody bags, aid stations and on course support.
Annual March challenge walk around Abergavenny with four route options from about 10 to 20 miles, mountain checkpoints and charity fundraising.
Timed, lap based event at Barry Sidings Country Park on 21 March 2027 offering distances from 5 km to ultra on a 5.3 km out and back lap with a seven hour limit.