Bieg 7 dolin - 100 km Ultramaraton

Race completed

100 km Distance

4,200 m Climbing

10.0 Grit · Elite / extreme

49.4406° N, 20.7142° E© OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Climbing rate 42 m / km Mountain. Significant climbing. Steep sections will require power hiking.

Time limit 19 hours 11:24 min/km average. Generous. Walkable throughout for most of the field. More forgiving than 67% of 100K races. Measured against 208 races of the same distance. Cut-off calculator →

Field size ~225 Large. Rarely out of sight of another runner.

DUV results for the 2025 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, September

Daytime high 18°C

Night low 7°C

Rainfall Mostly dry

Daylight 12 h 52 m of light

Regional 2001-2020 average for September — NASA POWER, grid elevation 608 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

🥤 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 trail with 4,200 m of ascent.

Trail Running Shoes42 m of climb per kilometre — grip and rock protection before cushioning.
Race NutritionPast 100 km the palate quits before the legs do — carry more than one flavour.
Hydration VestsPole attachment and chest-strap stability on steep ground.
Trekking Poles4,200 m of ascent to walk up.
HeadlampsA 19 h limit puts you out there after dark.

Salomon