Barring a minor miracle, three Russian teenagers would have battled it out for the podium places: 16-year-old Alena Kostornaia and a pair of 15-year-olds, Anna Shcherbakova and Alexandra Trusova. The trio have revolutionized figure skating. What makes them so good? Well, owing to their remarkable jumps, they maximize the technical points on offer. Trusova and Shcherbakova have both mastered skating’s holy grail: the quad, an exhaustive element – and up until recently an unheard-of feat for ladies, which is four full rotations in the air. However, there are concerns. First, rather than a skating competition for women, are we now...