Black Cattle Ultra Gwartheg Duon
Cardiff, United Kingdom • 29 Aug 2026
Black Cattle Ultra Gwartheg Duon
The Black Cattle Ultra offers two point-to-point trail ultramarathon options along the Cambrian Way from the Black Mountains area into Cardiff. The event runs over rugged upland and woodland terrain and finishes at Cardiff Harlequins RFC, Diamond Ground, Forest Farm Road, Whitchurch, Cardiff CF14 7JN.
Distances:
- 44 mile (71K) from Llanthony Priory to Cardiff
- 33 mile (53K) from Abergavenny to Cardiff
Both courses are unmarked and require self-navigation using Cambrian Way waymarkers; runners join the Taff Trail for the final miles into the finish. GPX files of the routes are provided. The event is point to point and an optional coach transfer from Cardiff to the start is available at extra cost.
Support infrastructure includes live tracking devices, a professional medical team, a professional photographer, timing services, and indoor aid stations (three for the 44 mile course, two for the 33 mile course). Indoor aid locations include Abergavenny Community Centre, Pontypool Pontymoil Church, and Machen, with additional water points approximately every six miles. There is a kit check at registration and entry requires the kit specified on the organiser's list.
Entries are charged per distance. The event provides locally sourced finisher mementos and awards for overall and veteran placings. Both courses have final cut-offs at the finish venue; competitors should allow an average pace of about 2.6 mph. Visit the organization's website for the most recent information.