How Long Is The Boston Marathon 2025. Tens of thousands of athletes from around the world will return to boston on april 21, 2025 for the 129th boston marathon. A whopping 35,000 runners are expected to take off from the start line at the 2025 sydney marathon.
Tens of thousands of athletes from around the world will return to boston on april 21, 2025 for the 129th boston marathon. When is the 2025 boston marathon and how much does it cost.