Presented by Brigham and Women's Hospital, the 9th Annual B.A.A. 10K is the perfect way to kick off the summer racing season. As the second race in the B.A.A. Distance Medley, the 10K is scheduled for June 23 and registration is set to open in early May. This race through the heart of Boston along Commonwealth Ave. is one of the most exciting in the area. In 2016 Massachusetts native Shalane Flanagan set the American women's 10K record on this course!