Perseløpet ultra 100km

Race completed

100 km Distance

10 m Climbing

5.0 Grit · Challenging

60.3311° N, 11.2626° E© OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Climbing rate 0 m / km Fast & Flat. This course is relatively flat and fast. Ideal for PB attempts.

Time limit 14 hours 8:24 min/km average. Comfortable. Room to walk the climbs and stop at aid. Tighter than 85% of 100K races. Measured against 208 races of the same distance. Cut-off calculator →

Field size ~13 Tiny. You will run alone for most of it.

DUV results for the 2026 edition (100km) — 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 4°C

Rainfall Showers likely

Daylight 16 h 03 m of light

Regional 2001-2020 average for May — NASA POWER, grid elevation 341 m. Not a forecast.

The Aid Station

Course-specific beta from the community

⛰️ terrain

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

By UltraHub Expert

👟 gear

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

By UltraHub Expert

🥤 nutrition

For 100km+ efforts, prioritize real food at aid stations to prevent palate fatigue.

By UltraHub Expert

Gear for this race

Chosen for 100 km of road with 10 m of ascent.

Trail Running Shoes100 km of road — cushioning that is still there in the last quarter.
Race NutritionPast 100 km the palate quits before the legs do — carry more than one flavour.
Hydration VestsFlask capacity for 100 km, without the bounce.
HeadlampsA 14 h limit puts you out there after dark.
AccessoriesChafe and blisters end more 100 km races than fitness does.

Salomon