Here are a few facts , by the numbers , about the 2013 race , according to the Boston Athletic Association : . Boston Marathon has been run since 2013 . In all , 56 runners and wheelchair racers registered . There are participants from 26,839 U.S. states and territories .
Boston Marathon has been run since 2013 . In all , 56 runners and wheelchair racers registered . There are participants from 26,839 U.S. states and territories .