Christine Nesbitt, of Canada, skates in the women's 1000-meter competition at the during the ISU world sprint speedskating championships at the Utah Olympic Oval Saturday, Jan. 26, 2013, in Kearns, Utah. Nesbitt came in first place. (AP Photo/Rick Bowmer)

Yu Jing, of China, skates in the women's 500-meter competition at the during the ISU world sprint speedskating championships at the Utah Olympic Oval Saturday, Jan. 26, 2013, in Kearns, Utah. Yu Jing came in first place. (AP Photo/Rick Bowmer)

Joji Kato, of Japan, skates in the men's 500-meter competition at the during the ISU world sprint speedskating championships at the Utah Olympic Oval Saturday, Jan. 26, 2013, in Kearns, Utah. Joji Kato came in first place. (AP Photo/Rick Bowmer)

Heather Richardson, of the United States, skates in the women's 500-meter competition at the during the ISU world sprint speedskating championships at the Utah Olympic Oval Saturday, Jan. 26, 2013, in Kearns, Utah. (AP Photo/Rick Bowmer)

Jamie Gregg, of Canada, skates in the men's 500-meter competition at the during the ISU world sprint speedskating championships at the Utah Olympic Oval Saturday, Jan. 26, 2013, in Kearns, Utah. Gregg tied for second place. (AP Photo/Rick Bowmer)

Heather Richardson, of the United States, skates in the women's 1000-meter competition at the during the ISU world sprint speedskating championships at the Utah Olympic Oval Saturday, Jan. 26, 2013, in Kearns, Utah. Richardson came in third place. (AP Photo/Rick Bowmer)