Spain trail race
Sun, May 17, 2026 · Zegama, Basque Country
The cathedral of mountain running. A brutal 42 km loop through the Basque mountains with 5,400 m of combined elevation change. Where the sport's legends are made.
Zegama-Aizkorri is a trail race held on Sun, May 17, 2026 in Zegama, Basque Country, Spain. TrailSplits currently includes one mapped course for this event, with course maps, elevation profiles, weather context, and pacing tools for the uploaded GPX data.
Race route lab
Open the official GPX in Planner, then choose a nearby start point to build a shorter loop that matches the course demand. This course averages about 62.8 m climb per km.
Sun, May 17, 2026
Selected distance
Vert-focused blueprint with route-finder links into the Planner.
Interactive MapLibre preview with the official GPX track.
Based on the official GPX track.
Zegama-Aizkorri 42K — 2025 edition. 2800 finishers.
Load the GPX directly into TrailSplits for surface analysis and terrain intel.