a href="http://www.nytimes.com/2011/01/31/sports/31xgames.html?partner=rssnytemc=rss"img src="http://graphics8.nytimes.com/images/2011/01/31/sports/31xgames_white2/31xgames_white2-thumbStandard.jpg" border="0" height="75" width="75" hspace="4" align="left"/aIn his first competition since winning Olympic gold, Shaun White continued his snowboarding dominance with a fourth straight Winter X Games halfpipe title. More...