Junior Michael Skinner converted an alley-oop with just over three seconds remaining to give CMU the 86-85 win over Western St.
CMU had five players score in double figures. Emilio Acedo led the team with 16 points.
Skinner had 15 points and nine rebounds including the game-winner.
The Mavs won despite giving up eight three pointers to the Mountaineers.
CMU will host Westminster College at 7:30 P.M. on Thursday night.