When Is The Boston Marathon 2025 Registration. Qualifying times below are based upon each athlete’s age on the date of the boston marathon. Monday, april 21, 2025 as the presenting sponsor, bank of america continues to ensure the stability of the world's oldest annual marathon.

The boston athletic association will celebrate the 129th running of the boston marathon presented by bank of america on monday, april 21, 2025. Et on friday, september 13.