Builth Wells
Trail Running Calendar near Builth Wells 2026-2027
Explore the top trail runs near Builth Wells for 2026-2027! We've gathered 48 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.
May 2027
A fully supported inaugural trail race on Saturday 29 May 2027 along the Heart of Wales Line, offering 50, 26 and 16 mile options.
Approx 8.8 mile trail and tarmac race around Tillington and Burghill with steep climbs, music en route, finishers' memento and an after-event party.
June 2027
A 15 mile point to point trail race along the Offa's Dyke footpath between Hay-on-Wye and Kington, with three water stations, a relay option and two cut off points.
A race in Llanwrtyd Wells on 12 June 2027 that pits runners against horses, with electronic timing, enforced cut-offs and a rolling jackpot for any runner who beats the first horse.
Magic Roundabout is a 10k trail race on 13 June 2027 near Hay-on-Wye in the Begwyn hills, with hilly terrain and post-race hot and cold refreshments.
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.
A 16.5 kilometre mountain race in Llanfrynach on 10 July 2027 with 670 m ascent, WFRA BM classification, a 75 minute summit cut off and mandatory map and compass.
A 100 mile self-navigation ultramarathon across the Brecon Beacons with 6143 m ascent, 10 checkpoints, strict qualifying criteria and a 40 hour cut off.
A two day trail ultramarathon in the Brecon Beacons near Abergavenny with distances up to 100 miles, on site camping, and UTMB index status.
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
Mountain trail races from Talybont-on-Usk in the Brecon Beacons with 51 km and 24 km options, cupless aid stations, chip timing and a mandatory briefing.
September 2027
A long-distance 45 mile crossing of Wales completed on foot or by run within 18 hours, offered as a weekend package with accommodation, transport and refreshments.
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.
A team relay across the Black Mountains near the Brecon Beacons of about 50 km, with teams of 5 to 10 choosing their own route and handovers.