Isiah Thomas is an American former professional basketball player and coach. Widely regarded as one of the greatest point guards of all time, he led the Detroit Pistons to two NBA championships and was named NBA Finals MVP in 1990. He is a 12-time NBA All-Star and an inductee in the Basketball Hall of Fame.
This is based on winning 6 head-to-head matchups with other famous people, but also losing 29 head-to-head matchups.
Most recently Isiah Thomas lost a matchup to Roy Scheider (#1362) voted by someone from United States.