Formoza Challenge - Kalisz
MAY
10
2026
Read all about the Formoza Challenge - Kalisz on 10 May 2026 in Kalisz.
Sun 10 May 2026
Ultra Challenge
Always double-check with the organizer's website! This page may contain affiliate links.
About the race
The Formoza Challenge - Kalisz will take place in Kalisz on Sunday 10 May 2026. Visit the organization's website for the most recent information.
Ultra Challenge
