Cambridge Half Marathon CambridgeSide: 11/2
CambridgeSide's annual Cambridge Half Marathon will take place on Sunday, November 2, 2025. The Cambridge Half Marathon is a 13.1 mile USATF certified course that starts and finishes at CambridgeSide. It is a fast + flat course along Memorial Drive featuring views of the Charles River, MIT, John W. Weeks Footbridge, Harvard University Stadium, and more.
Race Registration NOW OPEN
For sponsorship or volunteer opportunities, please email CSinfo@NEDevelopment.com.
The Cambridge Half Marathon at CambridgeSide supports many local charities including Cambridge Camping, City of Cambridge Scholarship Fund, and more!
lululemon is partnering with Marathon Sports and MYSTRYDE TRAIN to bring you a group training program for the Cambridge Half Marathon.
Already have a bib? Purchase the program alone. Don’t have a bib yet? Purchase the program as part of your race registration! Sign up by July 31, training starts August 4th.