Keane Boucher and Josh Sawatzky scored two goals each as the defending Zone 4 High School Hockey League champion Morden Thunder defeated the Prairie Mountain Mustangs 7-3 in game one of their best-of three-semifinal.

Jaidon Lawson, Spencer Norrie and Finley Wheeler also scored for the Thunder.

Kyle Devos, Reece Gates and Svan Bazin replied for the Mustangs who trailed 3-2 after the first period and 4-2 after the middle frame.

Morden netminder Owen Domitruk faced 28 shots.

Christopher Lesage and Dawson Simoens combined to stop 29 shots in net for Prairie Mountain.

Game two goes Friday night in Swan Lake.