K6 Czech Ultramarathon Festival - 12h

Race completed

not publishedn/a Distance

12 m Climbing

not publishedn/a Grit

We hold no course length for this race — a timed or backyard event is measured by the clock, not the kilometre — so there is no Grit score to give you.

49.8814° N, 12.9817° E© OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Field size ~28 Small. Long stretches with nobody in sight.

DUV results for the 2026 edition (12h) — ranked runners 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 18°C

Night low 7°C

Rainfall Mostly dry

Daylight 15 h 00 m of light

Regional 2001-2020 average for May — NASA POWER, grid elevation 494 m. Not a forecast.

The Aid Station

Course-specific beta from the community

👟 gear

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

By UltraHub Expert

Gear for this race

Chosen for this road race with 12 m of ascent.

Trail Running ShoesCushioning on road that is still there in the last quarter.
Race NutritionSelf-supported fuelling between aid stations.
Hydration VestsFlask capacity without the bounce.
HeadlampsA 12 h limit puts you out there after dark.
GPS WatchesBattery life first — an ultra outlasts most full-GPS modes.

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

Brooks