Cambridge Half Marathon
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Event details
The Cambridge Half Marathon and Cambridge 5K take place over the weekend of November 1-2, 2025 in Cambridge, MA (100 CambridgeSide Place). The event includes a half marathon (13.1 miles) and a 5K. The half marathon course is USATF certified, starts and finishes at CambridgeSide, and follows Memorial Drive with views of the Charles River, MIT, the John W. Weeks Footbridge, and Harvard University Stadium. A combined challenge option covers both races and awards a third medal for completing both events. The 2025 half marathon is listed as sold out.
Distances:
- 13.1 miles (half marathon)
- 5K
Awards, records and race kit
All finishers receive a race medal; challenge participants receive three medals. A total of $6,500 in prize money and bonuses is available for the half marathon open division. Prize distribution for the open division is equal for men and women and is based on gun time. Open division payouts: 1st $1,000; 2nd $750; 3rd $500; 4th $300; 5th $200. A $500 course record bonus is listed. Awards are given to the top 3 overall in male, female and non-binary categories and to the top 3 male and female finishers in each age division (18 and under; 19-29; 30-39; 40-49; 50-59; 60-69; 70-79; 80+). The 2025 race kit includes a long sleeve quarter zip pullover; race swag may be picked up during bib pick-up or mailed for a $30 fee. Winners are notified by email and engraved awards are mailed about two weeks after the race. Visit the organization's website for the most recent information.