Harich, Netherlands · Saturday, October 24, 2026

Fixed Distance 50K

Gaasterland Trail

51 days away

50 km Distance

100 m Climbing

2.7 Grit · Entry level

52.9024° N, 5.5637° E © OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Climbing rate 2 m / km Fast & Flat. This course is relatively flat and fast. Ideal for PB attempts.

Time limit 7 hours 8:24 min/km average. Comfortable. Room to walk the climbs and stop at aid. Among the tightest 50K cut-offs we track. Measured against 982 races of the same distance. Cut-off calculator →

Field size ~67 Mid-sized. Company early, well spread out by halfway.

DUV results for the 2025 edition (50km) — 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 9°C

Rainfall Mostly dry

Daylight 10 h 07 m of light

Regional 2001-2020 average for October — NASA POWER, grid elevation 0 m. Not a forecast.

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

Gear for this race

Chosen for 50 km of trail with 100 m of ascent.

Trail Running Shoes 50 km of trail — cushioning that is still there in the last quarter.
Race Nutrition 50 km of self-supported fuelling between aid stations.
Hydration Vests Flask capacity for 50 km, without the bounce.
GPS Watches Battery life first — a 50 km day outlasts most full-GPS modes.