Witzenhausen-Kleinalmerode, Germany · Saturday, April 10, 2027

Fixed Distance 100K

BiMa 100 HTN

206 days away
100 km Distance
2,000 m Climbing
8.0 Grit · Hardcore
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51.3410° N, 9.8554° E© OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Climbing rate 20 m / km Rolling. Moderate undulations. Requires consistent effort across varying grades.
Time limit 16 hours 9:36 min/km average. Comfortable. Room to walk the climbs and stop at aid. About average for a 100K. Measured against 208 races of the same distance. Cut-off calculator →
Field size ~56 Small. Long stretches with nobody in sight.

DUV results for the 2022 edition (100km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.

Typical conditions, April

Daytime high 13°C
Night low 3°C
Rainfall Mostly dry
Daylight 13 h 28 m of light

Regional 2001-2020 average for April — NASA POWER, grid elevation 301 m. Not a forecast.

The Aid Station

Course-specific beta from the community

⛰️ terrain

This is a rolling 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
🥤 nutrition

For 100km+ efforts, prioritize real food at aid stations to prevent palate fatigue.

By UltraHub Expert

Gear for this race

Chosen for 100 km of trail with 2,000 m of ascent.

  • Trail Running Shoes20 m of climb per kilometre — grip and rock protection before cushioning.
  • Race NutritionPast 100 km the palate quits before the legs do — carry more than one flavour.
  • Hydration VestsPole attachment and chest-strap stability on steep ground.
  • Trekking Poles2,000 m of ascent to walk up.
  • HeadlampsA 16 h limit puts you out there after dark.

Asics

Trabuco Max 3

★★★★★ 4.6

La Sportiva

Prodigio Pro

RunRepeat found the La Sportiva Prodigio Pro to have a secure, locked-in fit due to its premium upper, and also praised the shoe's energetic ride, particularly…

$225 ★★★★★ 4.6

Skratch Labs

Sport Hydration Mix

Clean electrolyte drink mix with real fruit flavor. Low sugar.

$20 ★★★★★ 4.5

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

Nitecore

UT32

Dual-beam trail running headlamp (1100 lumens) with spot and flood beams.

$100 ★★★★★ 4.5
All gear guides →

Course Notes

Der Bilstein-Marathon BiMa 100 mit ca. 2000 Höhenmetern. Zusätzlich zum BiMa Ultra 57 eine Schleife auf dem Werratalradweg bis Wahlhausen und zurück nach Kleinalmerode. ACHTUNG Teile dieser Strecke gehen über eine Landesstraße, den Werratalradweg

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