Chorzow, Poland · Sunday, October 4, 2026

Fixed Distance 50K

Ultra Silesia Marathon

18 days to go

50 km Distance

223 m Climbing

2.8 Grit · Entry level

50.3058° N, 18.9742° E© OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Climbing rate 4 m / km Fast & Flat. This course is relatively flat and fast. Ideal for PB attempts.

Time limit 6 hours 7:12 min/km average. Firm. Sustained running. Long aid-station stops will cost you. Among the tightest 50K cut-offs we track. Measured against 1007 races of the same distance. Cut-off calculator →

Field size ~301 Large. Rarely out of sight of another runner.

DUV results for the 2025 edition (50km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.

Typical conditions, October

Daytime high 13°C

Night low 4°C

Rainfall Mostly dry

Daylight 11 h 32 m of light

Regional 2001-2020 average for October — NASA POWER, grid elevation 256 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 trail terrain, choose a shoe with moderate cushioning for optimal performance.

By UltraHub Expert

Gear for this race

Chosen for 50 km of trail with 223 m of ascent.

Trail Running Shoes50 km of trail — cushioning that is still there in the last quarter.
Race Nutrition50 km of self-supported fuelling between aid stations.
Hydration VestsFlask capacity for 50 km, without the bounce.
GPS WatchesBattery life first — a 50 km day outlasts most full-GPS modes.

Adidas

Terrex Agravic Speed Ultra

★★★★★ 4.5

Adidas

Terrex Speed Ultra

★★★★★ 4.5

Tailwind

Endurance Fuel

All-in-one calorie and electrolyte drink mix. 200 calories per serving.

$25 ★★★★★ 4.8

Nathan

VaporKrar 12L

12L race vest co-designed with ultra champion Rob Krar, with insulated bladder pocket.

$170 ★★★★★ 4.6

Suunto

Vertical

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

$630 ★★★★★ 4.5

All gear guides →

Course Notes

Silesia Ultra Marathon is the only one in Poland and Europe leading the ultramarathon through the streets of four cities: Katowice, Siemianowice Slaskie and Myslowice and Chorzow. Silesia Ultra Marathon is organized as part of the Silesia Marathon ev

Similar races

Other 50K trail ultras, closest in distance first.