The 125th Boston Marathon will be held on Monday, October 11, 2021. The Boston Marathon is sponsored by John Hancock.

“The Boston Marathon is the oldest consecutively run marathon in the world, and we at the B.A.A. are grateful that so many dedicated athletes desire to compete here,” said Tom Grilk, B.A.A. Chief Executive Officer. “We are inspired by the devotion and commitment displayed by all those aiming to meet the Boston Marathon qualifying standards.”