Brecon Beacons
Trail Running Calendar near Brecon Beacons 2026-2027
Explore the top trail runs near Brecon Beacons for 2026-2027! We've gathered 80 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.
April 2027
Traverse the mountains and forests of the Brecon Beacons National Park with 10, 20, or 40 mile trail options. Enjoy a fully marked course and well stocked checkpoints in this canicross friendly mountain challenge.
May 2027
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.
A Wales trail event offering 100 mile and 100 km races across Offa’s Dyke, the Cambrian Way and the Beacons Way with volunteer support.
A muddy 5k obstacle course through Singleton Park with mixed terrain, staggered waves, an age limit of 13+, and on-site facilities including toilets and refreshments.
Mountain trail marathon and 10 mile race around Parkwood Dolygaer in the Brecon Beacons, with three checkpoints and a six-hour cutoff at 20.5 miles.
26.5 mile and 16 mile challenge walks around the Rhondda Valleys from Trehafod, organised by the South Wales Group of the LDWA.
Trail running at Margam Country Park on 23 May 2027 with 5 km, 10 km and half marathon routes, live chip timing, canicross allowed and limited on-site parking.
A multi-stage event at Dare Valley Country Park where runners complete five Pure distances within 24 hours, with separate and combined results. Distances include 5k, 10k, 50k, half marathon and marathon.
A fully supported trail running event in May 2027 along the way-marked Heart of Wales Line Trail from Llandrindod Wells to Craven Arms, offered in 50 miles, 26 miles, and 16 miles distances.
June 2027
A 15-mile point-to-point trail race along the Offa’s Dyke footpath between Hay-on-Wye and Kington, featuring three water stations, two official cut off points, a relay option for two or three runners, baggage transport and on-course safety rules.
July 2027
A 10 hour loop endurance challenge on Mynydd Troed with roughly 2.7 mile marked laps, about 1,000 ft ascent per lap, solo, pairs and four‑person team entries.
Trail races on the private Merthyr Mawr Estate with a 12K, half marathon and marathon across dunes, river crossings and the Glamorgan Heritage Coast.
Beacons Way Ultra offers 100 km and 100 mile races in the United Kingdom on 24 to 25 July 2027 as part of the Ultra Great Britain Race Series.
An urban navigation challenge in Cardiff where participants are blindfolded, dropped at an undisclosed location and must return across 6, 10 or 15 miles without maps or GPS.
September 2027
Divona 100 in Rhayader, LD6, UK is scheduled for Sat 11 Sep 2027 and the event listing includes entry details, reviews, discounts, photos, course maps and results.
October 2027
SAS Endurance in Talybont-on-Usk on 1-2 October 2027 offers full 64 km and half 32 km navigational routes with guided and self navigation options.
July 2028
A single day ultra of about 39.7 miles along National Cycle Route 8 from Glasbury to Merthyr Tydfil. Limited field, mandatory kit and 4.0 mph cut offs; finishers receive an Afanc medal and champions receive bespoke trophies.
A point to point 34.8 mile ultra from Merthyr Tydfil to Barry Island following National Cycle Route 8. It is day six of the MTC CYMRUN series and uses preset cut offs based on a 4 mph minimum average speed.
November 2028
A fell race at Llyn y Fan on 14 November 2028 covering 8.8 km with 610 m ascent, entry via Fabian4 and a 50 person limit. The revised route follows the Beacons Way to Llyn Y Fan Fach and returns over Picws Du and Fan Foel.