
Runners cross the Verrazano-Narrows Bridge at the start of the TCS New York City Marathon on November 1 in New York City. The marathon has grown from a Central Park race with 55 finishers in 1970 to the world's biggest and most popular marathon, with 50,530 finishers in 2014.

Runners wait at the starting line prior to crossing the Verrazano-Narrows Bridge.

Runners cross the Verrazano-Narrows Bridge at the start of the marathon.

An athlete in the Wheelchair Division crosses the Verrazano-Narrows Bridge.

Runners cross the Verrazano-Narrows Bridge.

A costumed runner, like this Spiderman, is not an unusual sight amid runners.

Movie director Spike Lee takes photos of the elite runners as they pass.

The Pro Women's Division of runners crosses the Verrazano-Narrows Bridge at the start of the marathon.

Elite runners make their way through the streets of Brooklyn during the marathon.

Medals are ready for finishers at the finish line.

Pro Men's Division winner Stanley Biwott of Kenya, left, poses with Pro Women's Division winner Mary Keitany, also of Kenya.

Manuela Schar of Switzerland (2nd place), from left, Tatyana McFadden of the United States (1st), and Sandra Graf of Switzerland (3rd), react after finishing the Women's Professional Wheelchair Division.

Ernst van Dyk of South Africa celebrates as he crosses the finish line to win the Men's Professional Wheelchair Division.

Matthew Nieves, 16, from New York's Bishop Loughlin High School, crosses the finish line to win the inaugural New York Road Runners Youth Invitational event of the marathon.