Germany
The Eiserner Anton Ultramarathon will take place in Bielefeld on Saturday 7 March 2026. You can run 11 kilometers. Visit the organization's website for the most recent information.
Always double-check with the organizer's website – things can change, and we might have sprinted past a few details!
11 km
4 Runden A`11,4 Km = 45,6 Km