CALGARY, Alberta (AP) — Matthew Tkachuk had his first career playoff hat trick and the Calgary Flames beat the Edmonton Oilers 9-6 in Game 1 of their second-round series. Blake Coleman scored twice for the Flames. Rasmus Andersson and Andrew Mangiapane each had a goal and two assists, and Elias Lindholm and Brett Ritchie also scored. Jacob Markstrom stopped 22 shots for the win. Zach Hyman scored twice for Edmonton, and Connor McDavid had a goal and three assists for his fourth straight multi-point game in the playoffs. Leon Draisaitl had a goal and two assists and Kailer Yamamoto and Evan Bouchard also scored for the Oilers. Mike Smith was pulled in the first period after allowing three goals on 10 shots. Mikko Koskinen made 32 saves in relief.