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.
June 2027
Military themed D Day series run at Parc Taf Bargoed with 5.3 km laps; choose distances up to ultra within a seven hour time limit and earn commemorative medals.
Ultra R reverses the OTT Ultra route for a summer trail event with rugged trails, big climbs and four checkpoints across about 26 miles.
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.
A 100 miles mountain ultramarathon across the Brecon Beacons on 24 July 2027 with 6143 m ascent, ten checkpoints, mandatory navigation skills and live GPS tracking.
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.
Multi distance trail event in the Brecon Beacons on 24 and 25 July 2027 at Gilfach Farm, offering distances from 10 km to 100 miles.
A self-navigated 100 km across the Brecon Beacons with 3178 m ascent, six staffed checkpoints, strict qualifying criteria and a 24-hour cut-off.
August 2027
Trail running in Brecon Beacons National Park on 7 August 2027 with 51k and 24k courses across moorland and mountain ridges, on marked routes with aid stations and chip timing.
September 2027
An annual non-commercial 27.4 km fell race in the Black Mountains with five checkpoints, full kit required and online entry via Fabian4.
A 12 hour Backyard Ultra on a 4.2 mile mixed trail and tarmac loop near Crickhowell, with a reverse-direction final lap to decide male and female winners.
October 2027
November 2027
A 30 miles mountain ultra across the Brecon Beacons with steep climbs, technical descents and mandatory kit checks in Georgetown, Merthyr Tydfil on 6 November 2027.
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
Llyn y Fan is an 8.8 km fell race with 610 m ascent on 14 November 2028, entry £7 via Fabian4, age over 16 and a 50 runner limit.