Figure skaters are defined by their ups and downs. If they hit their jumps, they soar in the standings, often onto the podium. If they flop, it hurts, it stings, and they head home empty. Mirai Nagasu has known all of those ups and downs plus a whole lot more. Now 24, Nagasu is going to the Olympics eight years after finishing fourth at the 2010 Vancouver Games; no U.S. woman has done better since or is likely to in Pyeongchang. Her climb has been an extraordinary one even by the drama-filled standards of the sport.