X1, X2 and O1, O2 will battle each other 1 vs. 1 in the circle for 15 secs. On the whistle, X1 & X2 will head to the middle of the ice to battle O1 & O2, 2 on 2 for 15 secs. When they leave the circle, X3, X4 and O3, O4 will battle in the small circle for 15 secs.