Ovifat, Belgium · Saturday, November 7, 2026

Fixed Distance 50 mi

Grand Trail des Lacs et Châteaux Winter

65 days away

66 km Distance

2,513 m Climbing

7.1 Grit · Hardcore

50.4266° N, 6.2043° E © OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Climbing rate 38 m / km Rolling. Moderate undulations. Requires consistent effort across varying grades.

Time limit 13 hours 11:49 min/km average. Generous. Walkable throughout for most of the field. About average for a 50 mi. Measured against 445 races of the same distance. Cut-off calculator →

Field size ~458 Large. Rarely out of sight of another runner.

DUV results for the 2025 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, November

Daytime high 7°C

Night low 2°C

Rainfall Mostly dry

Daylight 9 h 28 m of light

Regional 2001-2020 average for November — NASA POWER, grid elevation 424 m. Not a forecast.

The Aid Station

Course-specific beta from the community

⛰️ terrain

This is a rolling 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 66 km of trail with 2,513 m of ascent.

Trail Running Shoes 38 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 2,513 m of ascent to walk up.
Headlamps A 13 h limit puts you out there after dark.