James Ray Hines was an American track and field athlete and National Football League (NFL) player, who held the 100-meter world record for 15 years. In 1968, he became the first man to officially break the 10-second barrier in the 100 meters, and won individual and relay gold at the Mexico City Olympics. Jim Hines (United States) set the men's 100 m world record of 10.03 in Sacramento, USA on June 20, 1968. It stood 4 months, until Jim Hines's 9.9 on October 14, 1968. Wiki link