Béla Károlyi is an ethnic Hungarian Romanian-American gymnastics coach. Early in his coaching career he developed the Romanian centralised training system for gymnastics. One of his earliest protégés was Nadia Comăneci, the first Olympic Games gymnast to be awarded a perfect score. Living under the dictatorship of Nicolae Ceaușescu, Károlyi frequently clashed with Romanian officials. He and his wife defected to the United States in 1981.

Nadia Elena Comăneci Conner is a Romanian retired gymnast. A five-time Olympic gold medalist, all in individual events, in 1976, at the age of 14, Comăneci was the first gymnast to be awarded a perfect score of 10.0 at the Olympic Games. At the same Games, she received six more perfect 10s for events en route to winning three gold medals. At the 1980 Summer Olympics in Moscow, she won two more gold medals and achieved two more perfect 10s. During her career, she won nine Olympic medals and four World Artistic Gymnastics Championship medals.