Boston Marathon 2025 Registration. The qualifying window for the 130th boston marathon presented by bank of america, to be held april 20, 2026, opened on september 1, 2024, and will run through the end of registration week in september 2025. The boston athletic association (baa) has announced the registration dates for the 2025 boston marathon.


Boston Marathon 2025 Registration

What is the cut off time. The boston athletic association (baa) has announced the registration dates for the 2025 boston marathon.

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