Builth Wells
Trail Running Calendar near Builth Wells 2026-2027
Explore the top trail runs near Builth Wells for 2026-2027! We've gathered 47 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.
November 2026
30 mile ultra through the Brecon Beacons, climbing to Pen y Fan with 3750 ft gain, five checkpoints and a six hour mid race cut off; limited to 200 entries on 7 Nov 2026.
A short fell race of 5.7 km with 485 m of climb on Blorenge near Llanfoist, Abergavenny. Mostly unmarked up-and-down route with steep technical terrain; basic navigation and full kit are recommended.
December 2026
A winter hill race on Skirrid with a 5.7 km course and 450 m ascent from Skirrid Inn, £10 entry and no entries on the day.
February 2027
A Backyard Ultra near Crickhowell mixing 50/50 trail and tarmac on a 4.167 mile loop, eleven timed laps then a final race to decide the winner.
March 2027
Ultra trail in Crickhowell on 6 March 2027 with 10, 20 and 40 mile routes, fully marked courses, GPX files and canicross friendly entries.
Annual March challenge walk around Abergavenny with four route options from about 10 to 20 miles, mountain checkpoints and charity fundraising.
April 2027
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 requirements..
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.
The HOWUM in Llanidloes on May 1, 2027 offers Full and Half event options; entries are currently marked sold out with a waitlist listed.
May 2027
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.
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.
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.
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.
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.