Mark won diving letters in 1987, 1988, 1989 and 1990 and won Big Ten Championships on one-meter, three-meter and platform in 1989 and in one-meter in 1990. He was the NCAA Champion on one-meter board in 1989 and 1990 and won the gold medal in Olympic Games in 1996. He won eight U.S. National Championships in diving and recorded the sport's first 100-point dive. Mark is two-time World Cup champion.