Michael Pereira had two goals and two assists and the University of Mass­achusetts routed slumping Boston University, 5-1, Friday night at the Mullins Center in Amherst.

The No. 11 Terriers (13-10-1, 10-7-1 Hockey East) dropped to 3-5-1 in their last nine games after squandering a chance to complete a season sweep of the Minutemen (10-12-2, 7-9-1).