Jack Gruber / USA Today Sports
Keri Herman practices for slopestyle skiing during media day prior to the Sochi 2014 Olympic Winter Games at Rosa Khutor Extreme Park. (Jack Gruber/USA TODAY Sports Photo) 
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When: Feb. 11.
Best of the U.S.: Keri Herman, Devin Logan, Julia Krass and Maggie Voisin.
Best of the rest: Canadians Kaya Turski and Dara Howell.
U.S. chances to medal: Herman, the former hockey player turned extreme sports star, appears to have the best shot to make the podium.
Little-known fact: Voisin, who turned 15 in December, will be the youngest member of Team USA at the Games.
