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Cambridge, MA · October 31, 2026 · RunningExternal event
Cambridge Half Marathon + 5K 2026
Cambridge, MA · October 31, 2026 · Running
DateOctober 31, 2026
LocationCambridge, MA
DisciplineRunning
RegistrationExternalorganizer site
Price$45
Divisions
Half MarathonDistance
5KDistance
Guest Pass - Post Race CelebrationDistance
About the race
The race.
The Cambridge Half Marathon and 5K take place on October 31, 2026, in Cambridge, MA. The 5K covers 3.1 miles on an out-and-back route along the Charles River, starting and finishing at CambridgeSide. The half marathon spans 13.1 miles on a USATF-certified course that also starts and finishes at CambridgeSide, following Memorial Drive with views of the Charles River, MIT, and Harvard University Stadium. Both races offer a post-race celebration with guest passes available. Participants can compete in the Cambridge Half Marathon + 5K Challenge combining both distances.
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