Calw-Altburg, Germany · Saturday, October 3, 2026

Fixed Distance 100K

e2h10k-100km Ultrarace

2 days to go

100 km Distance

420 m Climbing

5.6 Grit · Challenging

48.7142° N, 8.7403° 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 20 hours 12:00 min/km average. Generous. Walkable throughout for most of the field. More forgiving than 72% of 100K races. Measured against 214 races of the same distance. Cut-off calculator →

Field size ~5 Tiny. You will run alone for most of it.

DUV results for the 2025 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, October

Daytime high 14°C

Night low 5°C

Rainfall Mostly dry

Daylight 11 h 37 m of light

Regional 2001-2020 average for October — NASA POWER, grid elevation 556 m. Not a forecast.

Results history

Year	Race	Finishers	Men's winner	Women's winner
2025	100km	5	Rafael Golis · 14:02:00	—
2023	100km	10	Marco Möhler · 10:02:00	—
2022	100km	12	Marco Möhler · 08:55:00	Peijin Gong · 12:10:00
2021	100km	14	Sascha Lorenz · 09:35:06	Bettina Wissmeier-Huber · 14:20:55
2021	100km	7	Ramin Madani · 12:10:29	Nina Pauschert · 14:44:34
2020	100km	9	Sascha Lorenz · 19:04:30	Pia Winkelblech · 19:22:55

The field shrank 50% between 2023 (10) and 2025 (5). 0% of the 2025 field were women.

DUV results for the 2025 edition (100km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.

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

🥤 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 420 m of ascent.

Trail Running Shoes 100 km of trail — cushioning that is still there in the last quarter.
Race Nutrition Past 100 km the palate quits before the legs do — carry more than one flavour.
Hydration Vests Flask capacity for 100 km, without the bounce.
Headlamps A 20 h limit puts you out there after dark.
Accessories Chafe and blisters end more 100 km races than fitness does.