Boston Marathon 2025 Finish Times. To answer this question, i needed to be able to quantify how many people qualified for the 2024 boston marathon and how many qualified for the 2025 boston marathon. The 129th boston marathon will take place on monday, april 21, 2025.

With 2025 being our second year. With the new rule, runners must cross the finish line on boylston street by a set time—5:30 p.m.