Ibbenbüren, Germany · Saturday, November 21, 2026

Fixed Distance 50K

Kletterfelsen Brumleytal Ultra-Trail

33 days away

50 km Distance

1,500 m Climbing

4.8 Grit · Challenging

52.2775° N, 7.7151° E © OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Climbing rate 30 m / km Rolling. Moderate undulations. Requires consistent effort across varying grades.

Time limit 9 hours 10:48 min/km average. Firm. Sustained running. Long aid-station stops will cost you. About average for a 50K. Measured against 1063 races of the same distance. Cut-off calculator →

Field size ~15 Tiny. You will run alone for most of it.

DUV results for the 2026 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, November

Daytime high 9°C

Night low 3°C

Rainfall Mostly dry

Daylight 8 h 32 m of light

Regional 2001-2020 average for November — NASA POWER, grid elevation 38 m. Not a forecast.

Results history

Year	Race	Finishers	Men's winner	Women's winner
2026	50km	15	Benedikt Brockmann · 05:48:22	Sarah Mangler · 05:44:55

27% of the 2026 field were women.

DUV results for the 2026 edition (50km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.

Course notes

terrain This is a rolling course. Expect fast, runnable sections where rhythm is key.
gear With trail terrain, choose a shoe with moderate cushioning for optimal performance.

Gear for this race

Chosen for 50 km of trail with 1,500 m of ascent.

Trail Running Shoes 30 m of climb per kilometre — grip and rock protection before cushioning.
Race Nutrition 50 km of self-supported fuelling between aid stations.
Hydration Vests Pole attachment and chest-strap stability on steep ground.
Trekking Poles 1,500 m of ascent to walk up.
GPS Watches Battery life first — a 50 km day outlasts most full-GPS modes.

Brooks

Catamount 3

RunRepeat found the Brooks Catamount 3 to have a cozier upper that enhances the overall fit, though breathability and durability could be better. iRunFar noted…

★★★★★ 4.5

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

Tailwind

Endurance Fuel

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

$25 ★★★★★ 4.8

Salomon

ADV Skin 12

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

$180 ★★★★★ 4.8

Komperdell

Carbon Ultralight Vario 4

4-section folding carbon poles with compact pack size for mandatory gear.

$160 ★★★★★ 4.5

Suunto

Vertical

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

$630 ★★★★★ 4.5

All gear guides →

Overview

The Kletterfelsen Brumleytal Ultra-Trail is a 50k trail race in Ibbenbüren, Germany, held in November. The course features 1500 meters of elevation gain, making for 30 meters of climb per kilometer.

With a 9-hour time limit, the cut-off pace of 10.8 minutes per kilometer is tighter than 65% of 50k cut-offs, allowing less margin for error than most races of this distance. The field size of 15 finishers is smaller than 74% of 50k fields.

The race is organized by Detlev Broenstrup and Uwe Laig. It consists of three demanding loops through the Teutoburger Wald, utilizing forest roads, trails, and single-tracks. Each loop has 350 meters of elevation gain.

Similar races

Other 50K trail ultras, closest in distance first.