Dunlewey, Ireland · Saturday, September 19, 2026

Fixed Distance 50K

Seven Sisters Skyline

3 days to go

55 km Distance

4,000 m Climbing

8.8 Grit · Elite / extreme

55.0219° N, 8.1281° W© OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Climbing rate 73 m / km Vertical. Extreme verticality. This is a technical mountain course with sustained steep grades.

Time limit 13 hours 14:11 min/km average. Generous. Walkable throughout for most of the field. More forgiving than 69% of 50K races. Measured against 1007 races of the same distance. Cut-off calculator →

Field size ~57 Small. Long stretches with nobody in sight.

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, September

Daytime high 15°C

Night low 11°C

Rainfall Showers likely

Daylight 12 h 32 m of light

Regional 2001-2020 average for September — NASA POWER, grid elevation 95 m. Not a forecast.

The Aid Station

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

Gear for this race

Chosen for 55 km of trail with 4,000 m of ascent.

Trail Running Shoes73 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 Poles4,000 m of ascent to walk up.
HeadlampsA 13 h limit puts you out there after dark.

Adidas

Terrex Speed Ultra

★★★★★ 4.5

Adidas

Terrex Agravic Speed Ultra

★★★★★ 4.5

Skratch Labs

Sport Hydration Mix

Clean electrolyte drink mix with real fruit flavor. Low sugar.

$20 ★★★★★ 4.5

Salomon

ADV Skin 12

Industry-standard 12L race vest with front flask pockets and minimal bounce.

$180 ★★★★★ 4.8

Black Diamond

Distance FLZ

Lightweight folding trekking poles with FlickLock Z adjustment. 340g per pole.

$170 ★★★★★ 4.7

Nitecore

UT32

Dual-beam trail running headlamp (1100 lumens) with spot and flood beams.

$100 ★★★★★ 4.5

All gear guides →

Course Notes

An Epic open mountain 50km Ultra that takes participants across the Derryveagh mountains in beautiful Donegal. A wild, unspoilt course with technical sections on either end of the course, and wild running in between.

Similar races

Other 50K trail ultras, closest in distance first.