Builth Wells, United Kingdom · Saturday, August 1, 2026
Fixed Distance 50 mi
The Eddum
Race completed
80 km Distance
8,550 m Climbing
10.0 Grit · Elite / extreme
What the course asks
Climbing rate 107 m / km
Vertical. Extreme verticality. This is a technical mountain course with sustained steep grades.
Field size ~156 Mid-sized. Company early, well spread out by halfway.
DUV results for the 2025 edition (50mi) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.
Typical conditions, August
Daytime high 19°C
Night low 11°C
Rainfall Showers likely
Daylight 15 h 33 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
This is a vertical course. Poles are highly recommended for the sustained climbs.
With trail terrain, choose a shoe with moderate cushioning for optimal performance.
Gear for this race
Chosen for 80 km of trail with 8,550 m of ascent.
- Trail Running Shoes107 m of climb per kilometre — grip and rock protection before cushioning.
- Race Nutrition80 km of self-supported fuelling between aid stations.
- Hydration VestsPole attachment and chest-strap stability on steep ground.
- Trekking Poles8,550 m of ascent to walk up.
- Headlamps80 km almost certainly means running into the night.
Course Notes
A 50 mile challenge around the Epynt Way
Similar races
Other 50 mi trail ultras, closest in distance first.