Black Cattle Ultra Gwartheg Duon

AUG
29
2026
Run through dramatic Welsh hills at the Black Cattle Ultra on 29 August 2026, with 44 mile and 33 mile options that tackle mountain terrain, woodland vales and a Castell Coch finish. Hosted by Ridge Runners in Cardiff, this route rewards bold runners.
Sat 29 Aug 2026
44 miles 33 miles

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Event details

Black Cattle Ultra Gwartheg Duon takes place on Saturday 29 August 2026. The event is organised by Ridge Runners and is based at Cardiff Harlequins RFC, Diamond Ground, Forest Farm Road, Whitchurch, Cardiff CF14 7JN. Entries open 30 August 2025 and close 23 August 2026. Entries so far: 2 participants. Minimum age for both courses is 18.

Entry fees are: 44 miles £90 and 33 miles £80. The event offers an option to purchase XCover insurance that may allow a refund if a participant cannot attend for unforeseen reasons.

Courses and route

Two course distances are offered:

  • 44 miles (71K) - starts at Llanthony Priory, follows the Cambrian Way to Cardiff
  • 33 miles (53K) - starts in Abergavenny, includes the Blorenge climb, finishes via Castell Coch

The routes cross mountain terrain, wooded vales and villages. The 33 mile course passes Pontypool and Risca and reaches the Machen Races venue. Both courses approach Cardiff via the Cefn Onn ridge and pass Castell Coch near the finish. Visit the organization's website for the most recent information.

44 mi
44 Miles
33 mi
33 Miles

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