Cisna, Poland · Friday, June 5, 2026
Fixed Distance 50 mi
Bieg Rzeźnika
Race completed
84 km Distance
2,250 m Climbing
7.6 Grit · Hardcore
What the course asks
Climbing rate 27 m / km
Rolling. Moderate undulations. Requires consistent effort across varying grades.
Time limit 13 hours
9:17 min/km average. Comfortable. Room to walk the climbs and stop at aid. Tighter than 83% of 50 mi races. Measured against 455 races of the same distance. Cut-off calculator →
Typical conditions, June
Daytime high 21°C
Night low 12°C
Rainfall Showers likely
Daylight 16 h 02 m of light
Regional 2001-2020 average for June — NASA POWER, grid elevation 527 m. Not a forecast.
The Aid Station
Course-specific beta from the community
This is a rolling course. Expect fast, runnable sections where rhythm is key.
With trail terrain, choose a shoe with moderate cushioning for optimal performance.
Gear for this race
Chosen for 84 km of trail with 2,250 m of ascent.
- Trail Running Shoes27 m of climb per kilometre — grip and rock protection before cushioning.
- Race Nutrition84 km of self-supported fuelling between aid stations.
- Hydration VestsPole attachment and chest-strap stability on steep ground.
- Trekking Poles2,250 m of ascent to walk up.
- HeadlampsA 13 h limit puts you out there after dark.
Similar races
Other 50 mi trail ultras, closest in distance first.