Letni Bieg Zboja Wielki Zboj 2026

Letni Bieg Zbója - Wielki Zbój is a 42 km mountain marathon held in Bielsko-Biała, Poland, during August. This race is the full-marathon distance within the Letni Bieg Zbója series, which also includes 60 km, 25 km, 11 km, and 7 km options. The name “Zbój” signifies a mountain outlaw or robber from local highland folklore, and the event embraces this rugged, traditional character instead of resembling a typical city marathon. The Wielki Zbój course begins and concludes in Bielsko-Biała, leading participants into the Beskid mountains. It is almost entirely off-road, with ITRA classifying the route as 99% trails and 1% roads, requiring mountain running capabilities over road-marathon pacing. The race awards ITRA Mountain Level 6 points, is part of the National League, and is designed for individuals prepared for a demanding regional competition featuring extended ascents, varied terrain, and summer mountain weather.