

Lawrence Cherono, of Kenya, breaks the tape to win the 123rd Boston Marathon in front of Lelisa Desisa, of Ethiopia, right, on Monday, April 15, 2019, in Boston.
Jared Ward, of Mapleton, Utah, right, leads the pack ahead of Hayato Sonoda, left, of Japan, and Elkanah Kibet, center, of Fountain, Colo., as they run the course during the 123rd Boston Marathon on Monday, April 15, 2019, in Boston.
Runners cross the start line of the 123rd Boston Marathon on Monday, April 15, 2019, in Hopkinton, Mass.
Final preparations are made in the rain at the finish line for the 123rd Boston Marathon on Monday, April 15, 2019, in Boston.
Manuela Schar, of Switzerland, celebrates as she heads to the finish line to win the women's handcycle division of the 123rd Boston Marathon on Monday, April 15, 2019, in Boston.
The elite women break from the start of the123rd Boston Marathon on Monday, April 15, 2019, in Hopkinton, Mass.
Kenneth Kipkemoi, left, of Kenya, Lelisa Desisa, center, of Ethiopia, and Lawrence Cherono, right, of Kenya, compete in the final mile.
Manuela Schar, of Switzerland, breaks the tape to win the women's wheelchair division.
Daniel Romanchuk, of Urbana, Ill., breaks the tape to win the men's handcycle division of the 123rd Boston Marathon on Monday, April 15, 2019, in Boston.
Joan Benoit Samuelson celebrated the 40th anniversary of her first victory at the Boston Marathon by running the 123rd edition of the race on Monday. She finished in 3:04:00.
Joan Benoit Samuelson is embraced Monday by Boston Athletic Association CEO Tom Grilk after she finished the 123rd Boston Marathon. Samuelson was running on the 40th anniversary of her first Boston Marathon victory in 1979.