In the New York Times: After Jessie Diggins crossed the finish line of the Tour de Ski cross-country race in Val di Fiemme, Italy, she collapsed onto her belly with arms and legs splayed on the snow, body heaving. A grueling eight-stage race held over 10 days, the Tour de Ski is the World Cup cross-country ski circuit’s marquee event and, by most accounts, its toughest.

No American had ever won the 15-year-old event until Diggins did so on Sunday. . . . Diggins is known for wearing cheek glitter and breaking out in improvised dancing, but she also wrote a memoir last year, “Brave Enough,” in which she described conquering an eating disorder in her teens.