Madison Hubbell and Zachary Donohue perform during the free dance at the U.S. Figure Skating Championships, Saturday, Jan. 16, 2021, in Las Vegas. (AP Photo/John Locher)

Nathan Chen performs during the men's free skate at the U.S. Figure Skating Championships, Sunday, Jan. 17, 2021, in Las Vegas. (AP Photo/John Locher)

Nathan Chen performs during the men's free skate at the U.S. Figure Skating Championships, Sunday, Jan. 17, 2021, in Las Vegas. (AP Photo/John Locher)

Alexa Knierim and Brandon Frazier perform during the pairs free skate at the U.S. Figure Skating Championships, Saturday, Jan. 16, 2021, in Las Vegas. (AP Photo/John Locher)

Bradie Tennell performs during the women's free skate at the U.S. Figure Skating Championships, Friday, Jan. 15, 2021, in Las Vegas. (AP Photo/John Locher)

Vincent Zhou performs during the men's free skate at the U.S. Figure Skating Championships, Sunday, Jan. 17, 2021, in Las Vegas. (AP Photo/John Locher)

First place finishers Madison Hubbell and Zachary Donohue pose with their medals in the championship ice dance at the U.S. Figure Skating Championships, Saturday, Jan. 16, 2021, in Las Vegas. (AP Photo/John Locher)

First-place finisher Nathan Chen poses with his medal in the men's championship at the U.S. Figure Skating Championships, Sunday, Jan. 17, 2021, in Las Vegas. (AP Photo/John Locher)

Nathan Chen performs during the men's free skate at the U.S. Figure Skating Championships, Sunday, Jan. 17, 2021, in Las Vegas. (AP Photo/John Locher)

Jason Brown performs during the men's free skate at the U.S. Figure Skating Championships, Sunday, Jan. 17, 2021, in Las Vegas. (AP Photo/John Locher)

Bradie Tennell reacts as she hears her scores from the women's free skate at the U.S. Figure Skating Championships, Friday, Jan. 15, 2021, in Las Vegas. (AP Photo/John Locher)

Alexa Knierim and Brandon Frazier react after receiving the top score in the pairs free skate at the U.S. Figure Skating Championships, Saturday, Jan. 16, 2021, in Las Vegas. (AP Photo/John Locher)