Cambridge Half Marathon
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Event overview
The Cambridge Half Marathon + 5K is a multi-event road race organized by Cambridge Half Marathon + 5K at CambridgeSide in Cambridge, MA. The event includes separate entries for the 5K, the half marathon, a combined challenge, and charity runner options. Registration prices are listed between $45 and $175. The organizer lists fundraising results and charity support; the event series has raised more than $1.7 million in total since 2017 and distributed $609,000 to over 66 official charity partners in 2025.
Courses and location
Both the 5K and the half marathon start and finish at CambridgeSide, 100 CambridgeSide Place, Cambridge, MA 02141. The Cambridge 5K is a 3.1-mile out-and-back course along the Charles River with views of the Boston skyline. The Cambridge Half Marathon is a 13.1-mile USATF certified course that runs along Memorial Drive and features views of the Charles River, MIT, the John W. Weeks Footbridge, and Harvard University Stadium.
Additional notes
Event materials include course maps, awards and records, team options, and charity fundraising pages. The organizer provides pages for refunds, race insurance, results, and photos. Visit the organization's website for the most recent information.
