ONLINE REG. CLOSED.

RACEDAY REG. OPENS AT 7:30AM IN THE MARSH POST

Join us at the ​DCR's Charles River Reservation for the Charles River Half on a fast, flat 2.6 mile loop around the scenic Charles River. Starting and finishing at the marsh Post, and held on the same course as our popular Boston 5K Summer Series and Charles River Marathon, your race entry includes a shirt, a beautiful finisher's medal, and post-race beers from Mighty Squirrel.

Half Marathon - 9:00 AM, capped at 300 runners

The half marathon course is a flat 2.6 mile loop on paved paths around Boston's scenic Charles River, starting and finishing at the Marsh Post. Runners will complete five laps (13.1 miles) of the course.