Ultra-Trail Snowdonia - 50km

Race completed

55 km Distance

3,300 m Climbing

7.7 Grit · Hardcore

53.1181° N, 4.1292° W© OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Climbing rate 60 m / km Mountain. Significant climbing. Steep sections will require power hiking.

Time limit 14 hours 15:16 min/km average. Generous. Walkable throughout for most of the field. More forgiving than 80% of 50K races. Measured against 1007 races of the same distance. Cut-off calculator →

Field size ~965 Very large. Congested start, busy aid stations.

DUV results for the 2025 edition (55km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.

Typical conditions, May

Daytime high 13°C

Night low 9°C

Rainfall Mostly dry

Daylight 15 h 51 m of light

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

The Aid Station

Course-specific beta from the community

⛰️ terrain

This is a mountain 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

Gear for this race

Chosen for 55 km of trail with 3,300 m of ascent.

Trail Running Shoes60 m of climb per kilometre — grip and rock protection before cushioning.
Race Nutrition55 km of self-supported fuelling between aid stations.
Hydration VestsPole attachment and chest-strap stability on steep ground.
Trekking Poles3,300 m of ascent to walk up.
HeadlampsA 14 h limit puts you out there after dark.

Salomon

Sense Ride 5

RunRepeat found the Salomon Sense Ride 5 to have immaculate lockdown and a smooth and stable ride, making it confident on moderate trails and steep downhills. I…

★★★★★ 4.5

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

Spring Energy