The Longest Day 50km

Race completed

50 km Distance

1,680 m Climbing

5.0 Grit · Challenging

50.4838° N, 5.8667° E© OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Climbing rate 34 m / km Rolling. Moderate undulations. Requires consistent effort across varying grades.

Time limit 13 hours 15:36 min/km average. Generous. Walkable throughout for most of the field. More forgiving than 81% of 50K races. Measured against 1007 races of the same distance. Cut-off calculator →

Field size ~343 Large. Rarely out of sight of another runner.

DUV results for the 2025 edition (52km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.

Typical conditions, June

Daytime high 21°C

Night low 11°C

Rainfall Mostly dry

Daylight 16 h 15 m of light

Regional 2001-2020 average for June — NASA POWER, grid elevation 266 m. Not a forecast.

The Aid Station

Course-specific beta from the community

⛰️ terrain

This is a rolling course. Expect fast, runnable sections where rhythm is key.

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 50 km of trail with 1,680 m of ascent.

Trail Running Shoes34 m of climb per kilometre — grip and rock protection before cushioning.
Race Nutrition50 km of self-supported fuelling between aid stations.
Hydration VestsPole attachment and chest-strap stability on steep ground.
Trekking Poles1,680 m of ascent to walk up.
HeadlampsA 13 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

Adidas