Northeim, Germany · Saturday, January 23, 2027

Fixed Distance 50 mi

Leinetal-Ultra Winter Edition

97 days away

66 km Distance

1,700 m Climbing

5.9 Grit · Challenging

51.7066° N, 10.0000° E © OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Climbing rate 26 m / km Rolling. Moderate undulations. Requires consistent effort across varying grades.

Field size ~45 Small. Long stretches with nobody in sight.

DUV results for the 2026 edition (66km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.

Typical conditions, January

Daytime high 2°C

Night low -3°C

Rainfall Mostly dry

Daylight 8 h 38 m of light

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

Results history

Year	Race	Finishers	Men's winner	Women's winner
2026	66km	45	Tillmann Koch · 06:37:20	Marion Konradt · 08:43:11
2025	65km	37	Tillmann Koch · 07:17:17	Melanie Kasüske · 07:46:58
2024	65km	41	Ferenc Zsoldos · 06:45:00	Melanie Kasüske · 07:44:30
2023	65km	39	Ruwen Fritsche · 07:13:58	Johanna Vahlhaus · 07:32:56

The field grew 22% between 2025 (37) and 2026 (45). 9% of the 2026 field were women.

DUV results for the 2026 edition (66km) — 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 66 km of trail with 1,700 m of ascent.

Trail Running Shoes 26 m of climb per kilometre — grip and rock protection before cushioning.
Race Nutrition 66 km of self-supported fuelling between aid stations.
Hydration Vests Pole attachment and chest-strap stability on steep ground.
Trekking Poles 1,700 m of ascent to walk up.
GPS Watches Battery life first — a 66 km day outlasts most full-GPS modes.

New Balance

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

Skratch Labs

Sport Hydration Mix

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

$20 ★★★★★ 4.5

Nathan

VaporKrar 12L

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

$170 ★★★★★ 4.6

LEKI

Ultratrail FX.One

Ultra-light carbon folding poles (135g each) designed for mountain ultra racing.

$200 ★★★★★ 4.6

Suunto

Vertical

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

$630 ★★★★★ 4.5

All gear guides →

Overview

The Leinetal-Ultra Winter Edition is a 66 km trail race with 1700 meters of elevation gain, making it a challenging event with 25.8 meters of climb per kilometer. This places it among the more difficult 50-mile races in terms of elevation, a fact to consider for the January 23 start in Northeim.

With an entry fee of 18 Euro, the race has seen 4 editions since its 2023 debut, most recently in 2026. The latest edition had 45 finishers, a field size larger than 47% of its 653 peer 50-mile races.

Similar races

Other 50 mi trail ultras, closest in distance first.