Ben Chiarot scored his second goal of the game at 1:03 of overtime and the visiting Montreal Canadiens knocked off the Calgary Flames 5–4 on Thursday. Mike Hoffman tallied a goal and three assists, Nick Suzuki had a goal and two assists, and Andrew Hammond made 30 saves for Montreal, which has won six of seven. Andrew Mangiapane recorded a goal and two assists; Blake Coleman, Johnny Gaudreau and Elias Lindholm also scored; and Jacob Markstrom made 30 saves for the Flames, who had won 12 of 13. Hoffman scored with 2:45 left to give the Canadiens a 4–3 lead, but Lindholm tied it 4–4 with 28 seconds left and Markstrom pulled for the extra skater. Bruins 5, Golden Knights 2 Craig Smith had a hat trick and Jeremy Swayman made 34 saves to lead Boston over Vegas. It was the third hat trick and 22nd multi-point game of Smith’s …