Scenes from the Boston Athletic Association’s annual 10K Sunday through the Back Bay. More than 7,800 athletes from 49 states and 102 countries participated in the 6.2-mile race presented by Brigham and Women’s Hospital.

Scenes from the Boston Athletic Association’s annual 10K Sunday through the Back Bay. More than 7,800 athletes from 49 states and 102 countries participated in the 6.2-mile race presented by …{ai:summary}<p>7,800 runners from 102 countries competed in Boston's annual 10K race. #sports</p>

RUN IN THE SUN

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