Entry to the Struwwelpeter Run costs €5. Online registration for the Struwwelpeter Run is open until 18 October 2026. Late registrations can be made on 23 October 2026, from 12 noon to 7 pm, and on 24 October 2026 from 10 am at the Mini-Marathon race number collection area (Messe Frankfurt, Hall 1, Level 2).