Boston Marathon 2025 Runners. As the presenting sponsor, bank of america continues to ensure the stability of the world's oldest annual marathon. There were 36,393 runners who had qualified and applied to run the 2025 boston marathon.
The 129th running of the boston marathon will be on april 21st, 2025. The baa officially announced that there were 36,406 qualified applicants for the 2025 boston marathon.