Witzenhausen-Kleinalmerode, Germany · Sunday, February 7, 2027

Fixed Distance Marathon

Haferberg - Hasenmühle UltraTrail

112 days away

45 km Distance

1,200 m Climbing

4.1 Grit · Challenging

51.3410° N, 9.8554° E © OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Climbing rate 27 m / km Rolling. Moderate undulations. Requires consistent effort across varying grades.

Time limit 8 hours 10:40 min/km average. Firm. Sustained running. Long aid-station stops will cost you. Tighter than 74% of Marathon races. Measured against 46 races of the same distance. Cut-off calculator →

Field size ~35 Small. Long stretches with nobody in sight.

DUV results for the 2026 edition (45km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.

Typical conditions, February

Daytime high 3°C

Night low -3°C

Rainfall Mostly dry

Daylight 9 h 29 m of light

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

Results history

Year	Race	Finishers	Men's winner	Women's winner
2026	45km	35	Michael Altert · 05:26:10	Maja Jurkutat · 05:58:37
2025	45km	31	Swen Thorhauer · 04:05:29	Claudia Lederer · 05:26:54
2024	45km	9	Ray Qi · 03:51:26	—

The field grew 13% between 2025 (31) and 2026 (35). 34% of the 2026 field were women.

DUV results for the 2026 edition (45km) — 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 45 km of trail with 1,200 m of ascent.

Trail Running Shoes 27 m of climb per kilometre — grip and rock protection before cushioning.
Race Nutrition 45 km of self-supported fuelling between aid stations.
Hydration Vests Pole attachment and chest-strap stability on steep ground.
Trekking Poles 1,200 m of ascent to walk up.
GPS Watches Battery life first — a 45 km day outlasts most full-GPS modes.

Adidas

Terrex Agravic Speed Ultra

RunRepeat found the Adidas Terrex Agravic Speed Ultra to be perfect for midfoot and forefoot strikers, while iRunFar noted that the shoe feels incredibly effici…

★★★★★ 4.5

Adidas

Terrex Speed Ultra

RunRepeat found the Adidas Terrex Speed Ultra to have a grippy outsole and great lockdown, while iRunFar noted that the shoe works on a variety of trail conditi…

★★★★★ 4.5

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

Black Diamond

Distance FLZ

Lightweight folding trekking poles with FlickLock Z adjustment. 340g per pole.

$170 ★★★★★ 4.7

COROS

APEX 2 Pro

GPS running watch with 75-hour GPS battery, topo maps, and training metrics.

$500 ★★★★★ 4.7

All gear guides →

Overview

The Haferberg - Hasenmühle UltraTrail, a trail race around Witzenhausen-Kleinalmerode, Germany, has been held 3 times since 2024, with 35 finishers at its 2026 edition. The 45-kilometer course has 1200 meters of elevation gain, making for 26.7 meters of climb per kilometer.

With an 8-hour time limit, this race has a cut-off tighter than 76% of marathon races, allowing a pace no slower than 10.7 minutes per kilometer. The field is smaller than 56% of marathon fields, but bigger than 43%. The organiser, Gerno Semmelroth und Uwe Laig, charges 22 € to enter.

Similar races

Other Marathon trail ultras, closest in distance first.