Jakuszycki Ultramaraton 50K 2026

Jakuszycki Ultramaraton is the 50 km headline race of the official Letni Bieg Piastów weekend in Jakuszyce, Poland. The organizer describes it as a mountain ultramarathon through the Izera Mountains with mixed natural surfaces, around 1,064 m of elevation gain, and start and finish at Polana Jakuszycka, making it a clear amateur-participation trail-running event.