Boston Marathon 2025 Registration Dates 2025. The course follows route 135, route 16 and route 30. Registration for the 129 th boston marathon will begin on september 9 and continue through september 13, the boston athletic association (b.a.a.) announced on june 3.

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. Registration details for that race will be.