“Today was good,” Sammy Smith said of her medal-winning performance at World Junior Championships. A bit of an understatement, perhaps, but her smile described the deep satisfaction she felt. “I didn’t think that I skied [the qualifier] as tactically well as I was hoping to,” she continued. “And definitely lost some time on parts of the course where I shouldn’t have. But going into the heats, I was really excited and things turned out...