Boston Marathon 2024 Registration Window. For the 2024 boston marathon, the qualifying window began on september 1, 2022. The 2024 boston marathon registration period will open on monday, september 11, 2023, at 10 am est.
Registration details for that race will be announced. For the 2024 boston marathon, the qualifying window was from on september 1, 2022 to september 15 2023.