Chicagoland Spring Marathon 2025. This popular event promises exciting races for both serious runners and casual participants, highlighting the vibrant spring season in the chicago area. The chicagoland spring marathon, half marathon & 10k is a running event scheduled for may 4, 2025, in schaumburg, illinois.

Get ready for an exhilarating day of fitness and fun at the chicagoland spring marathon, half marathon & 10k on sunday, may 4, 2025! Find and register for your next full marathon race with our calendar.