Zack Greer and Riley Loewen had two goals and an assist apiece, Cory Conway had a goal and five assists, and Jarrett Davis, Mark Matthews, Brett Mydske, Jeff Cornwall, and Jeremy Thompson also scored for the Rush (14-0).
John Grant Jr. led the Mammoth (5-10) with three goals, and Adam Jones had a goal and four assists. Sean Pollock and Athan Iannucci each had two goals and an assist, Drew Westervelt had a goal and three assists, and Dan Coates and Bob Snider also scored.
Edmonton goaltender Aaron Bold stopped 24 shots for the win. Colorado's Dillon Ward made 33 saves in the losing effort.