1. U.S. Open
#1 Sports Event
The best tennis players in the world compete in the prestigious U.S. Open, which draws about 700,000 spectators each year. Stan Wawrinka and Angelique Kerber took the top prizes in 2016. In 2016, the tournament debuted a retractable roof over Arthur Ashe Stadium, a revamped South Plaza, and a sunken-court Grandstand. Next: August 28-September 10, 2017
Photo: Courtesy of the U.S. Open