2025 Boston Marathon Qualifying. The qualifying times below are based upon each athlete's age on the date. Boston—the boston athletic association (b.a.a.) today began notifying qualified applicants of their acceptance into the 129th boston marathon presented by bank of america.

The qualification window for the 2025 boston marathon began on september 1, 2023, and will close at 5 p.m. The qualifying window for the 129th boston marathon, scheduled to take place on april 21, 2025, began on september 1, 2023.