Marielle Thompson (left), Katrin Mueller, Ophelie David and Sami Kennedy-Sim during the FIS women's Skicross World Cup final. (Phillipe Desmazes/Getty Photo) (PHILIPPE DESMAZES / AFP/Getty Images / January 17, 2014)

When: Feb. 21.

Best of the U.S.: As in Vancouver four years ago, none qualified.

Best of the rest: Marielle Thompson and Kelsey Serwa of Canada, Katrin Mueller and Fanny Smith of Switzerland, and Ophelie David of France.

U.S. chances to medal: None.

Little-known fact: Vancouver gold medalist Ashleigh McIvor, who retired after suffering a serious knee injury in 2011, will be in the broadcast booth for the CBC in Sochi.