Llanberis, United Kingdom · Saturday, September 12, 2026

Fixed Distance 50K

Welsh 3000s Ultra Run

9 days to go

48 km Distance

4,000 m Climbing

8.4 Grit · Hardcore

53.1180° N, 4.1275° W © OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Climbing rate 83 m / km Vertical. Extreme verticality. This is a technical mountain course with sustained steep grades.

Daytime high 16°C

Night low 13°C

Rainfall Showers likely

Daylight 12 h 59 m of light

Regional 2001-2020 average for September — NASA POWER, grid elevation 68 m. Not a forecast.

Course-specific beta from the community

⛰️ terrain

This is a vertical course. Poles are highly recommended for the sustained climbs.

By UltraHub Expert

👟 gear

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

By UltraHub Expert

Chosen for 48 km of trail with 4,000 m of ascent.

Trail Running Shoes 83 m of climb per kilometre — grip and rock protection before cushioning.
Race Nutrition 48 km of self-supported fuelling between aid stations.
Hydration Vests Pole attachment and chest-strap stability on steep ground.
Trekking Poles 4,000 m of ascent to walk up.
GPS Watches Battery life first — a 48 km day outlasts most full-GPS modes.