Boston Marathon 2025 Registration Windows 10. 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. Registration for the 129th boston marathon, presented by bank of america, the boston athletic association (b.a.a.) begins tomorrow, september 9 and will run for five days, closing on september 13.
The baa publishes the boston marathon qualifying standards every year along with other information such as the cutoff times, when the qualifying window opens and closes,. Et on friday, september 13.
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