The success of American athletes at the Olympic games in 1984 and 1988 brought the sport of figure skating into the spotlight during the 1980s. Rivalries between skaters on national and international circuits also contributed to this new interest. Fans appreciated the skills needed to be an award-winning performer. This transformed many figure skaters into world celebrities. Figure skating competitions take place on a rink about 200 feet long and 100 feet wide. Performers are given scores based on the technical merit, artistic expression, choreography, and artistry of their routine. The 1980s were successful years for American figure skating. Nine world championships were captured by Americans during that time. In 1984, Scott Hamilton won the gold medal for the U.S. In 1988, Brian Boitano won the gold. Hamilton and Boitano captured U.S. and World Championships many times as well. Rosalynn Sumner and Debi Thomas are two very successful skaters who represented America in the 1980s. Both are winners of several U.S. and World Championships. Jill Trenary was also a U.S. champion. Many professional figure skaters join ice shows after their retirement from competition. The popularity of these shows also increased during the 1980s.