Hellen Obiri, of Kenya, raises her arms as she wins the women's division at the Boston Marathon, Monday, April 15, 2024, in Boston. (AP Photo/Charles Krupa)
Sisay Lemma, of Ethiopia, reacts after winning the Boston Marathon, Monday, April 15, 2024, in Boston. (AP Photo/Charles Krupa)
Grand Marshal and former New England Patriots NFL football player Rob Gronkowski poses at the start of the Boston Marathon, Monday, April 15, 2024, in Hopkinton, Mass. (AP Photo/Mary Schwalm)
Hellen Obiri, of Kenya, raises her arms after winning the women's division at the Boston Marathon, Monday, April 15, 2024, in Boston. (AP Photo/Charles Krupa)
A member of the State Police looks on as a wave crosses the start line of the Boston Marathon, Monday, April 15, 2024, in Hopkinton, Mass. (AP Photo/Mary Schwalm)
Sisay Lemma, of Ethiopia, breaks the tape to win the Boston Marathon, Monday, April 15, 2024, in Boston. (AP Photo/Steven Senne)
Sisay Lemma, of Ethiopia, celebrates while lying down after winning the Boston Marathon, Monday, April 15, 2024, in Boston. (AP Photo/Steven Senne)
Sisay Lemma, of Ethiopia, breaks the tape to win the Boston Marathon, Monday, April 15, 2024, in Boston. (AP Photo/Charles Krupa)
Marcel Hug of Switzerland holds the trophy after winning the men's wheelchair division at the Boston Marathon, Monday, April 15, 2024, in Boston. (AP Photo/Charles Krupa)
Hellen Obiri, of Kenya, celebrates after crossing the finish line to win the women's division at the Boston Marathon, Monday, April 15, 2024, in Boston. (AP Photo/Steven Senne)
Former New England Patriots NFL football player Rob Gronkowski hoists the winner's trophy at the Boston Marathon, Monday, April 15, 2024, in Boston. Gronkowski is grand marshal of the race. (AP Photo/Charles Krupa)
Boston Marathon Race Director Dave McGillivray, centre, sends a group of Massachusetts National Guard members across the start line in Hopkinton on Monday, April 15, 2024 to begin the marathon. The start line was painted in honor of the town that has hosted the marathon for the past century. It's the 128th edition of the world’s oldest and most prestigious annual marathon. (AP Photo/Jennifer McDermott)
Marcel Hug, of Switzerland, left, winner of the Boston Marathon men's wheelchair division, left, and Eden Rainbow Cooper, of Britain, right, winner of the women's wheelchair division, display the trophy on the finish line Monday, April 15, 2024, in Boston. (AP Photo/Steven Senne)
Sisay Lemma, of Ethiopia, left, winner of the men's division of the Boston Marathon, and Hellen Obiri, of Kenya, right, winner of the women's division of the race, hold the trophy on the finish line of the Boston Marathon, Monday, April 15, 2024, in Boston. (AP Photo/Steven Senne)
Former New England Patriots NFL football player Rob Gronkowski spikes a football on the finish line at the Boston Marathon, Monday, April 15, 2024, in Boston. Gronkowski is grand marshal of the race. (AP Photo/Steven Senne)
Marcel Hug of Switzerland breaks the tape to win the men's wheelchair division at the Boston Marathon, Monday, April 15, 2024, in Boston. (AP Photo/Charles Krupa)
Members of the United States military cross the starting line as they participate in the Boston Marathon, Monday, April 15, 2024, in Hopkinton, Mass. (AP Photo/Mary Schwalm)
Former New England Patriots NFL football player Rob Gronkowski hoists the winner's trophy at the Boston Marathon, Monday, April 15, 2024, in Boston. Gronkowski is grand marshal of the race. (AP Photo/Charles Krupa)
Sisay Lemma, of Ethiopia, celebrates after winning the Boston Marathon, Monday, April 15, 2024, in Boston. (AP Photo/Steven Senne)