Curran Reeve, Liam Shaw & Keegan Milligan scored 3rd period goals for the Mils while Brandon Wells made 28 saves in the win.
Meanwhile in Estevan,
The Yorkton Terriers lost on the road in overtime 6-5 to the Estevan Bruins.
McKenzie Welke & Kailum Gervais scored twice for the Terriers while Corwin Stevely scored the other.
Jakob Severson stopped 37 shots in the losing cause.
The Terriers still have a chance for 9th, if they beat Humboldt on Saturday and Notre Dame loses their final game on the season.