Connor Fields and his U.S. teammates made it safely through the wind and the wrecks at the BMX track. A crash-filled quarterfinal round on a breezy afternoon in Rio de Janeiro cleared the field of a handful of medal contenders, and brought the United States one step closer to returning to the podium after getting shut out in London four years ago. All three American riders advanced to the semifinals on Friday in an unpredictable sport that traces its roots to Southern California. More...