When: Feb. 10.
Best of the U.S.: National record-holder Mitch Whitmore had two top-10 finishes this season. He finished 37th in the 2010 Olympics.
Best of the rest: Defending Olympic champion Mo Tae-bum of South Korea, a versatile skater who medaled multiple times this season, won a 500 championship race at Adler last year.
U.S. chances to medal: Tucker Fredricks, 29, who finished 12th in 2010 and 25th in 2006, is ranked 23rd and won a race this season.
Little-known fact: The U.S. has 16 medals in this event, more than any country, despite a drought of five Olympics that ended in 2002.