The 120th Running of the Boston Marathon in Pictures

The start line at the 120th running of the Boston Marathon in Hopkinton, Mass. AP Photo/Michael Dwyer
A make-shift memorial dedicated to those killed in the 2013 Boston Marathon bombings adorns a tree near the finish line. REUTERS/Gretchen Ertl
Lemi Berhanu Hayle of Ethiopia after winning the mens division of the Boston Marathon. AP Photo/Elise Amendola
Atsede Baysa of Ethiopia after winning the womens division. Brian Fluharty-USA TODAY Sports
The start of the Boston Marathon in Hopkinton, Mass. Bob DeChiara-USA TODAY Sports
Elite runners make their way along the course. David Butler II-USA TODAY Sports
The mens wheelchair division starts. Tim Bradbury/Getty Images
Boston Marathon bombing survivor Adrianne Haslet starts the race. AP Photo/Michael Dwyer
Police muster near the finish line before the Boston Marathon. AP Photo/Charles Krupa
Carlos Arredondo, a 2013 Boston Marathon bombing first-responder, cheers runners on Monday. AP Photo/Elise Amendola
Boston Marathon bombing survivor Jeff Bauman with Jake Gyllenhaal before throwing out the first pitch at baseball game between the Red Sox and Blue Jays at Fenway Park, Monday. Gyllenhaal is playing Bauman in a movie called 'Stronger'. AP Photo/Mary Schwalm
Wave One runners start the Boston Marathon. Tim Bradbury/Getty Images
Cutbert Nyasango of Zimbabwe douses himself with water as he runs through Wellesley, Mass. AP Photo/Steven Senne
Boston Marathon runners past the start line in Hopkinton, Mass. Bob DeChiara-USA TODAY Sports
Lemi Berhanu Hayle of Ethiopia leads the pack past Boston University. David Butler II-USA TODAY Sports
Yemane Tsegay, left center, and Deribe Robi, right center, both of Ethiopia, lead the pack of runners just after the start in Hopkinton, Mass. AP Photo/Steven Senne
Marcel Hug of Switzerland crosses the finish line ahead of Kurt Fearnley of Australia (C) and Ernst Van Dyk of South Africa (R) to win the mens wheelchair division. REUTERS/Brian Snyder
Kathryn McCauley of Whitesboro, N.Y. running in Wellesley, Mass. AP Photo/Steven Senne
Lemi Berhanu Hayle of Ethiopia leads Lelisa Desisa of Ethiopia at mile marker 24. David Butler II-USA TODAY Sports
The crowd on Boylston Street cheers on the elite runners as they approach the finish line. Brian Fluharty-USA TODAY Sports
Runners head to the finish line. AP Photo/Charles Krupa
Atsede Baysa of Ethiopia crosses the finish line. Brian Fluharty-USA TODAY Sports
Jim Driscoll, left, of Ambler, Penn., and Mitch Kies, right, of Wimberley, Texas, help a runner across the finish line. AP Photo/Charles Krupa
Tatyana McFadden of the US accepts the first place trophy after winning womens wheelchair division. REUTERS/Brian Snyder
Bobbi Gibb, first woman to run the Boston Marathon in 1966, waves to the crowd at the finish line on Monday. AP Photo/Elise Amendola
Boston police officers with a police dog patrol near the finish line. REUTERS/Brian Snyder
Tatyana McFadden hugs Henry Richard, whose brother Martin was killed in the 2013 Boston Marathon bombings as Richard's mom, Denise and sister Jane look on after McFadden won the womens wheelchair division, Monday. REUTERS/Gretchen Ertl
Manuel Cabral of Canada kisses the flag of Portugal after finishing. AP Photo/Elise Amendola