So now it is up to Shani Davis, out of the South Side of Chicago, to put an end to the orange onslaught, and protect his hard-won domain. Davis, 31, the leading man of U.S. speedskating with the retirement of short-track icon Apolo Anton Oho, won the gold medal at 1,000 meters in Torino in 2006, and defended his title in Vancouver four years later.