Isabella Flaccavento scored four goals and added an assist to lead Glen Rock to a 13-2 victory over Old Tappan at Glen Rock on Saturday. The win extended the Panthers’ winning streak to four games.Glen Rock (6-1) dominated from the opening draw, racing to a 4-1 lead after the first period and never looking back. The Panthers added three goals in each of the second and third periods before closing out the game with three more in the fourth.