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EcoTrail Brussels

EcoTrail Brussels takes place on Sat, Sep 5, 2026 in Uccle, Belgium. The main route is 80 km.

Date
Sat, Sep 5, 2026
Start
Uccle 🇧🇪
Distance
80 km
Climbing
1,004 m
Level
Open to all
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EcoTrail Brussels is a scenic nature trail race taking runners through the green spaces and parks of Brussels with finishes at the historic Boitsfort racecourse.

Official event page

What this race demands

EcoTrail Brussels demands sustained endurance across an 80-kilometer trail distance with moderate climbing over park terrain. Athletes must manage efficient pacing and continuous fueling to sustain forward motion through the green spaces of Brussels.

Ultra Endurance

Covering 80 kilometers on foot requires extensive aerobic capacity and muscular resilience. The primary challenge is maintaining forward momentum over many hours of continuous running or trekking.

Terrain Adaptability

Navigating park trails and green spaces demands consistent foot placement and stabilization over varied natural surfaces. The 1004 meters of elevation gain requires controlled effort on rolling changes in grade.

Pacing Discipline

The lengthy distance necessitates a conservative early effort to preserve glycogen stores for the later stages. Athletes must avoid overexertion during the initial kilometers to ensure a steady finish.

Given the extended duration well exceeding 2.5 hours, athletes should consume 60 to 90 grams of carbohydrates per hour through a mix of gels, drinks, and solid foods to maintain energy levels.

Estimated finish times

Competitive (sub-3h marathon ability)7:00–8:00
Intermediate (3:00–3:30 marathon ability)8:00–9:30
First-timer / Finisher9:30–11:30

Estimates by level, not promises. Your own number depends on your fitness on the day.

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