Cambridge Half Marathon + 5K
About the Event
The Cambridge 5K is the kickoff to race weekend! It's a 3.1-mile course that starts and finishes at CambridgeSide. It's a quick out and back along the Charles River that will have you in awe of the Boston skyline.
The Cambridge Half Marathon is a 13.1-mile USATF certified course that starts and finishes at CambridgeSide. It is a fast and flat course along Memorial Drive featuring views of the Charles River, MIT, John W. Weeks Footbridge, Harvard University Stadium, and more.
Join fellow runners on October 31, 2026 for the Cambridge Half Marathon + 5K. It's a fantastic 5K, Half-Marathon featuring a flat and fast course in Cambridge.
Races Offered
Running
Cambridge 5K
Participants have 1-hour net time to complete the 5K.
Cambridge 5K Charity Runner
Participants have 1-hour net time to complete the 5K.
Cambridge Half Marathon + 5K Challenge
Participants have 1-hour net time to complete the 5K & have three hours net time to complete the half marathon.
Cambridge Half Marathon + 5K Challenge Charity Runner
Participants have 1-hour net time to complete the 5K & have three hours net time to complete the half marathon.
Cambridge Half Marathon
Participants have three hours net time to complete the half marathon.
Cambridge Half Marathon Charity Runner
Participants have three hours net time to complete the half marathon.
About Cambridge
Cambridge Half Marathon + 5K takes place in Cambridge, Massachusetts, United States. The local timezone is America/New_York.
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Race information has been sourced from the event's official website and other publicly available resources. For the most up-to-date details, please refer to the official website directly. If you notice any incorrect or missing information, don't hesitate to reach out to us by email.
