HOCHFILZEN, Austria—Redemption, validation, national pride: just a few of the things that were on the line in today’s 4 x 7.5 k relay at IBU World Championships. For Austria, it was clear: a good performance on home soil was critical. The team hadn’t won a medal yet despite eight chances to do so. For Germany, the question was whether their accomplished men’s team could live up to the expectations set by its younger women’s team,...