1 event in Cambridge, Massachusetts

From big races to Saturday morning group runs—find half marathon events and connect with the local endurance sports community.

• Cambridge Half Marathon + 5K [runsignup.com]
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  Sat, Oct 31, 2026 at 10:00 AM

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  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...

  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.

  5k 13.1 Miles Half Marathon Run

  100 CambridgeSide Place, Cambridge, Massachusetts, 02141, United States
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