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Join us at the ​DCR's Charles River Reservation for the Charles River Half & 5K on a fast, flat 2.6 mile loop around the scenic Charles River. 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 (half only), and post-race beers from Mighty Squirrel.

Half Marathon - 9:00AM, 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.

Half Marathon Team Relay - 9:05AM, capped at 40 teams
Using the same 2.6 mile loop as the individual half marathon, teams of 2-5 runners will complete a total of five laps (13.1 miles) of the course.  Each team member will complete one, two, three, or four laps of the course depending on the number of runners on the team. 

5K - 9:10AM, capped at 200 runners
The 5K is a flat 3.1 mile loop on paved paths around Boston's scenic Charles River, similar to our Boston 5K Summer Series course.

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