Tens of thousands of runners race through the boroughs of New York for the 48th New York City Marathon on Sunday. Ethiopia's Lelisa Desisa edged compatriot Shura Kitata to win the men's title and Kenya's Mary Keitany captured her fourth women's crown at the event. It was a historic day in perfect running conditions for 50,000 entrants in the 42-kilometer showdown on the streets of New York.