Härkingen, Switzerland · Sunday, August 9, 2026
Fixed Distance 50 mi
Mittelland Marathon x2
Race completed
84 km Distance
500 m Climbing
5.0 Grit · Challenging
What the course asks
Climbing rate 6 m / km
Fast & Flat. This course is relatively flat and fast. Ideal for PB attempts.
Time limit 12 hours
8:34 min/km average. Comfortable. Room to walk the climbs and stop at aid. Among the tightest 50 mi cut-offs we track. Measured against 445 races of the same distance. Cut-off calculator →
Field size ~10 Tiny. You will run alone for most of it.
DUV results for the 2025 edition (84km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.
Typical conditions, August
Daytime high 23°C
Night low 13°C
Rainfall Showers likely
Daylight 14 h 37 m of light
Regional 2001-2020 average for August — NASA POWER, grid elevation 547 m. Not a forecast.
The Aid Station
Course-specific beta from the community
This is a fast & flat course. Expect fast, runnable sections where rhythm is key.
With trail terrain, choose a shoe with moderate cushioning for optimal performance.
Gear for this race
Chosen for 84 km of trail with 500 m of ascent.
- Trail Running Shoes 84 km of trail — cushioning that is still there in the last quarter.
- Race Nutrition 84 km of self-supported fuelling between aid stations.
- Hydration Vests Flask capacity for 84 km, without the bounce.
- Headlamps A 12 h limit puts you out there after dark.
- GPS Watches Battery life first — a 84 km day outlasts most full-GPS modes.
Course Notes
Doppelmarathon auf einer abwechslungsreichen 7 Km Runde vorwiegend im Wald.
Similar races
Other 50 mi trail ultras, closest in distance first.