Tyson Gay

Gay was one of the biggest stars in sprinting when he tested positive for a banned substance in 2013. Gay had previously won a silver medal at the 2012 Summer Olympics and posted the second-fastest time in the 100-meter dash with a 9.69 second run in 2009 at the Shanghai Golden Grand Prix. After his positive test, though, Gay was banned from the sport for a year and stripped of his silver Olympic medal. Gay’s time of 9.69 makes him the second fastest athlete and the fastest American to ever run this event. He went on to compete in future events, but it is quite difficult for fans and other athletes to recognize any future accomplishments after his name had been tested with a positive test.

Ryan Upshaw