Boston Marathon | Boston Athletic Association

128th Boston Marathon

Registration for the 128th Boston Marathon presented by Bank of America will be held September 11-15, 2023.

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Boston Marathon

Monday, April 15, 2024

As the principal sponsor, John Hancock continues to ensure the stability of the world's oldest annual marathon.

2024 Registration Dates and Field Size

Keep up with the latest news on the B.A.A. and Boston Marathon.

A new policy for deferrals at B.A.A. events