A real crowd finally showed up on Saturday in Fort Kent, for the first time in three days of World Cup racing. They got exactly what they came for in the men’s 12.5 k pursuit: an exhilarating, back-and-forth battle culminating in a finishing sprint that was decided by inches—leaving fans and athletes alike unsure of who was the victor. Five minutes after he lunged with Frenchman Martin Fourcade, Norwegian Emil Hegle Svendsen finally learned that...