Boston Marathon

Registration for the 127th Boston Marathon is now closed. The race will take place on Monday April 17, 2023.

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

2023 Field Size and Registration Dates

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

Hot off the presses, read about this year's top contenders and storylines.