Llanthony Priory, United Kingdom · Saturday, August 29, 2026

Fixed Distance 50 mi

Black Cattle Ultra Gwartheg Duon 44mi

Race completed
71 km Distance
not publishedn/a Climbing
3.6 est Grit · Challenging

Calculated from 71 km alone — the organiser has not published an elevation profile. Read 3.6 as a floor, not a verdict.

51.9448° N, 3.0362° W © OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Time limit 17 hours 14:22 min/km average. Generous. Climbing is unpublished, so this pace is a ceiling on the effort, not a measure of it. More forgiving than 84% of 50 mi races. Measured against 472 races of the same distance. Cut-off calculator →

Typical conditions, August

Daytime high 19°C
Night low 11°C
Rainfall Showers likely
Daylight 13 h 52 m of light

Regional 2001-2020 average for August — NASA POWER, grid elevation 256 m. Not a forecast.

Course notes

  • gear With trail terrain, choose a shoe with moderate cushioning for optimal performance.

Gear for this race

Chosen for 71 km of trail.

  • Trail Running Shoes 71 km of trail — cushioning that is still there in the last quarter.
  • Race Nutrition 71 km of self-supported fuelling between aid stations.
  • Hydration Vests Flask capacity for 71 km, without the bounce.
  • Headlamps A 17 h limit puts you out there after dark.
  • GPS Watches Battery life first — a 71 km day outlasts most full-GPS modes.
All gear guides →

Overview

The Black Cattle Ultra Gwartheg Duon 44mi is a 71-kilometer trail race organized by Ridge Runners Ltd. near Llanthony Priory in the United Kingdom, with an entry fee of £90. Taking place in August, the race offers a 17-hour time limit to complete the course.

With a cut-off pace of 14.4 minutes per kilometer, this race has a tighter time limit than 15% of its 457 peers in the 50-mile distance category. This means runners will need to maintain a consistent pace to finish within the allotted time.

Similar races

Other 50 mi trail ultras, closest in distance first.