Dobroń, Poland · Saturday, September 26, 2026

Timed 24 hours

Ultramaraton Leśna Doba ULD9.0

10 days to go

not publishedn/a Distance

not publishedn/a 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.

51.6388° N, 19.2454° E© OpenFreeMap © OpenMapTiles Data from OpenStreetMap

Typical conditions, September

Daytime high 20°C

Night low 10°C

Rainfall Mostly dry

Daylight 12 h 01 m of light

Regional 2001-2020 average for September — NASA POWER, grid elevation 193 m. Not a forecast.

The Aid Station

Course-specific beta from the community

👟 gear

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

By UltraHub Expert

Gear for this race

Chosen for this trail race.

Trail Running ShoesCushioning on trail that is still there in the last quarter.
Race NutritionSelf-supported fuelling between aid stations.
Hydration VestsFlask capacity without the bounce.
HeadlampsA 24 h limit puts you out there after dark.
GPS WatchesBattery life first — an ultra outlasts most full-GPS modes.

Brooks

Cascadia 18

Versatile trail shoe with BioMoGo DNA cushioning and TrailTack rubber outsole.

$140 ★★★★★ 4.5

Salomon

S/Lab Ultra 3

Premium ultra trail shoe with Advanced Chassis for stability on technical terrain.

$200 ★★★★★ 4.8

Spring Energy

Awesome Sauce

Real food gel with 180 calories. Rice-based with natural flavors.

$4 ★★★★★ 4.6

Salomon

ADV Skin 12

Industry-standard 12L race vest with front flask pockets and minimal bounce.

$180 ★★★★★ 4.8

Petzl

NAO RL

1500-lumen reactive lighting headlamp with 15-hour runtime. Automatic brightness adjustment.

$150 ★★★★★ 4.7

Suunto

Vertical

Titanium GPS watch with solar charging, offline maps, and 140-hour GPS battery.

$630 ★★★★★ 4.5

All gear guides →

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