For any organizational issues, including verification of payments, please contact the Organizer: Stowarzyszenie Bydgoska Masa Krytyczna

Phone number: 889 971 635


In case of any problems with registration or technical mistakes on the list of participants contact B4SPORT:


Phone number: +48 523 076 410

If you have any questions or problems, we encourage you to use the tickets form. It will allow quick contact with the organizer or system administrator.

Click here to report a problem