WOMEN'S PARALLEL GIANT SLALOMWhen: Feb. 19.Best of the U.S.: No qualifiers.Best of the rest: Top contenders are Patrizia Kummer of Switzerland, Amelie Kober of Germany and Nicolien Sauerbreij of the Netherlands, who won gold in 2010 in Vancouver.U.S. chances to medal: None.Little-known fact: Snowboarding is the family business for the Sauerbreijes. Nicolien is coached by her father, and her sister also is a professional snowboarder.WOMEN'S PARALLEL SLALOMWhen: Feb. 22.Best of the U.S.: No qualifiers.Best of the rest: Patrizia Kummer of Switzerland, Amelie Kober and Isabella Labock of Germany and Ester Ledecke of the Czech Republic.U.S. chances to medal: None.Little-known fact: Another event making its debut at the Sochi Olympics. These snowboards are longer, stiffer and narrower than the boards that are used, for instance, in halfpipe events.