When Is The Boston Marathon 2025 Date. For the 2025 boston marathon, the qualifying window began on september 1, 2023 and was open through september 13, 2024. 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,.
When is the 2025 boston marathon? Athletes who have currently active finisher streaks of 10 or more boston marathons had an opportunity to.