Black Cattle Ultra Gwartheg Duon
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Event overview
Black Cattle Ultra Gwartheg Duon is a one-day trail ultra held on 29 August 2026, with the finish at Cardiff Harlequins RFC, Diamond Ground, Forest Farm Road, Whitchurch, Cardiff CF14 7JN. The event is organised by Ridge Runners, a not-for-profit community of running clubs from across South Wales. Entry is open between 30 August 2025 and 23 August 2026. Minimum age to enter is 18. Entry fees listed are £90 for the longer course and £80 for the shorter course. The event offers optional XCover insurance for refunds and reports 5 entries so far.
Courses and route
The event offers two ultra distances:
- 44 miles (71 km)
- 33 miles (53 km)
The 44 mile course starts at Llanthony Priory and follows the Cambrian Way toward Cardiff, passing Castell Coch near the finish. The 33 mile course starts in Abergavenny, about 11 miles into the 44 mile route, and includes an early climb of the Blorenge. Routes pass mountains, woodlands and several towns including Pontypool and Risca, traverse the Cefn Onn ridge, and visit the Machen Races venue. Aid stations, indoor toilets and food stations are provided on route. The event features locally produced awards and finishers mementos. Visit the organization's website for the most recent information.
