With some big climbs and minimal recovery, the 3.75k course in Hinterzarten demands some restraint and smart pacing. That’s no accident, according to Karl-Heinz Lickert, the FIS official who laid out the loop that was used in the U-23 men’s 15k. “We don’t want athletes who are only physically strong,” he said. The winner here, Vladislav Skobelev (RUS), clearly had both the brawn and brains Lickert was looking for—though he also wasn’t hurt by the...