HOPKINTON, MA - APRIL 18: A general view as Wave One runners start the 120th Boston Marathon on April 18, 2016 in Hopkinton, Massachusetts. (Photo by Tim Bradbury/Getty Images)
HOPKINTON, MA - APRIL 18: A general view as Wave One runners start the 120th Boston Marathon on April 18, 2016 in Hopkinton, Massachusetts. (Photo by Tim Bradbury/Getty Images)