Chicago Marathon 2025 Registration Date And Time. Applications for the 47th annual bank of america chicago marathon will be accepted beginning at 10 a.m. Local time on tuesday, oct.

Next year’s race is happening on october 12, 2025. The bank of america shamrock shuffle will take place on sunday, march 23, 2025.this beloved chicago tradition in its 44 th year is regarded as the official kickoff to the.