The Cambridge Half Marathon at CambridgeSide will take place on Sunday, November 7, 2021 (race day check-in opens at 7:00 a.m. EST). It is a 13.1-mile USATF certified course that starts & finishes at CambridgeSide, featuring MIT, John W. Weeks Footbridge, Harvard Stadium, Charles River and Harvard Square. Registration includes a quarter zip pullover, race bib with a timing chip and more. Team signups are encouraged. Cambridge Half Marathon race proceeds benefit Cambridge Camping, City of Cambridge Scholarship Fund and other local charities. Registration is now open at CambridgeSide.com.