russia. a lot of people expected the u.s. to have at least one more. but it wasn t to be. here are the details. reporter: shaun white s reign as king of the halfpipe ended on tuesday. the two-time gold medalist was favored to repeat but stumbled and finished fourth. white failed twice attempting a move called the yolo, short for you only live once. i hate the fact that i landed that run perfect in practice, then got on the pipe and it didn t work out. but it happens. reporter: the swiss snowboarder that invented the yolo nailed it and won the gold. americans shut out of the halfpipe medals for the first time since the sport was introduced in 1998 but american women made some history. for the first time in 50 years since women s luge became an olympic event, an american won a medal. erin hamlin nabbed bronze in the singles competition. fellow american devon logan clenched silver in slopestyle skiing. a new event at the winter games. i was biting my nails and