Ernst Van Dyk, of South Africa, breaks the tape to win the men's wheelchair division of the 118th Boston Marathon Monday, April 21, 2014 in Boston. (AP Photo/Elise Amendola)
Runners in the first wave of 9,000 cross the start line of the 118th Boston Marathon Monday, April 21, 2014 in Hopkinton, Mass. (AP Photo/Stephan Savoia)