Steve Williams is a retired track and field sprinter from the United States. He equalled the men's world records for the 100 m and 200 m with hand-timed runs of 9.9 seconds and 19.8 seconds, respectively, and was also a member of a team that set a world record in the 4 × 100 m relay. Steve Williams (United States) set the men's 100 m world record of 9.9 in Siena, Italy on July 16, 1975. It stood 37 days, until Steve Williams's 9.9 on August 22, 1975 (equalling it). Wiki link