The 38th annual American Birkebeiner, held in sub-zero and single-digit temperatures with record particpation, saw two sprint finishes to crown the men’s and women’s Birkie freestyle champions and a pair of UVM alums ski to sizable victories in the Birkie Classic on Saturday. Norwegian Tore Martin Gundersen won the 50K Birkie Freestyle race with a time of 2:00:32.8, furiously outsprinting his nearest opponent, Benoit Chauvet of France, by less than a second. Twenty seconds later,...