CHICAGO — Johnny Gaudreau, Dillon Dube and Blake Coleman scored in the first period, and the Calgary Flames beat the lowly Chicago Blackhawks 5-2 on Monday night. Jacob Markstrom made 21 saves as playoff-bound Calgary won for the seventh time in eight games. Gaudreau and Oliver Kylington tacked on long empty-netters for the Pacific Division leaders in the final 1:32. Chicago lost for the 10th time in 11 games. Tyler Johnson and Alec Regula scored, and Kevin Lankinen made 30 stops. The Blackhawks finished the game without Mackenzie Entwistle after the forward departed in the first period with a right shoulder injury. Chicago was down 3-1 when Regula’s long shot from the top of the left circle appeared to go off Markstrom and into the net 12:54 into the second period. It was the first career point for the defenceman in his 13th NHL game. But that was it for the Blackhawks against Markstrom and Co. Markstrom made a glove save on Reese Johnson with 4:09 left in the third, and the t...