Petra Vlhova denied Mikaela Shiffrin a women’s record 83rd World Cup victory in alpine skiing when she beat her long-time rival for a first season success in a slalom on Tuesday in Austria. Olympic slalom champion Vlhova held on to her first-run lead under the Flachau floodlights as she won at last in the campaign after seven previous podiums in second or third. Shiffrin trailed the Slovakian by .43 of a second, and Germany’s Lena Dürr was third, .85 behind Vlhova who bagged her 27th career win. Shiffrin had on Sunday equalled the women’s record 82 victories from compatriot Lindsey Vonn when s…