It was a day of redemption. Both for a biathlon superstar and for the best North American in the women’s 7.5-kilometer sprint at the 2017 International Biathlon Union (IBU) World Championships in Hochfilzen, Austria. A year ago, Czech Republic’s Gabriela Koukalová (back then starting under her maiden name Soukalová) was disappointed when she failed to win any medal at the Oslo World Championships, twice placing fourth, once fifth, and twice sixth with her team. She...