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.
What the course asks
Time limit 17 hours
14:22 min/km average. Generous. Walkable throughout for most of the field. Climbing is unpublished, so this pace is a ceiling on the effort, not a measure of it. More forgiving than 85% of 50 mi races. Measured against 455 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.
The Aid Station
Course-specific beta from the community
With trail terrain, choose a shoe with moderate cushioning for optimal performance.
Gear for this race
Chosen for 71 km of trail.
- Trail Running Shoes71 km of trail — cushioning that is still there in the last quarter.
- Race Nutrition71 km of self-supported fuelling between aid stations.
- Hydration VestsFlask capacity for 71 km, without the bounce.
- HeadlampsA 17 h limit puts you out there after dark.
- GPS WatchesBattery life first — a 71 km day outlasts most full-GPS modes.
Similar races
Other 50 mi trail ultras, closest in distance first.