Kaxtrail Mendi Lasterketa 2026

Kaxtrail Mendi Lasterketa is a mountain trail race held in Erratzu, a village in Navarra, northern Spain, scheduled for October. The main event, Lasterketa Osoa, spans 45 kilometers with 2,800 meters of climbing, presenting a challenging mountain outing rather than a brief local trail run. The event also offers the Binakako Proba Mistoa, a mixed-pair format, and the Ibilaldi Mendizalea, a mountain-walking option for those who wish to follow the route without competing. Its position on the Navarra running calendar signifies its regional importance, and the Basque names emphasize its local mountain character, rooted in Erratzu and the nearby Pyrenean foothills.