Black Cattle Ultra Gwartheg Duon 33mi

Race completed

53 km Distance

not publishedn/a Climbing

2.7 est Grit · Entry level

Calculated from 53 km alone — the organiser has not published an elevation profile. Read 2.7 as a floor, not a verdict.

51.8210° N, 3.0174° W© OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Time limit 15 hours 16:59 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 Climbing is unpublished, so this pace is a ceiling on the effort, not a measure of it.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 89% of 50K races. Measured against 1007 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 51 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

👟 gear

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

By UltraHub Expert

Gear for this race

Chosen for 53 km of trail.

Trail Running Shoes53 km of trail — cushioning that is still there in the last quarter.
Race Nutrition53 km of self-supported fuelling between aid stations.
Hydration VestsFlask capacity for 53 km, without the bounce.
HeadlampsA 15 h limit puts you out there after dark.
GPS WatchesBattery life first — a 53 km day outlasts most full-GPS modes.

La Sportiva

Prodigio Pro

RunRepeat found the La Sportiva Prodigio Pro to have a secure, locked-in fit due to its premium upper, and also praised the shoe's energetic ride, particularly…

$225 ★★★★★ 4.6

Adidas