Scoreless through two periods, Bismarck scored three goals in the third to beat Brookings, S.D., 3-1 on Saturday night.
Jacob Marti, Patrick O'Connor and Matej Murin netted third-period goals for the Bobcats. All three goals were unassisted.
Tied 1-1, O'Connor got the game-winner on the power play at the 17:27 mark of the third. Murin iced the win 90 seconds later.
Ryan Ullan stopped 25 of the 26 shots he faced in goal to earn the win for the Bobcats, who are off until hosting the Minot Minotauros on Dec. 29.