Chattanooga led 42-32 before the NAIA-member Phoenix got a 3-point play from Ty Sean Powell. Following a layup by Smallwood, Andrew Rogan buried a 3-pointer to cut the deficit to 44-38 with 17:16 to play.
David Jean-Baptiste responded with a 3, Smallwood made 1 of 2 free throws, Kevin Easley made a layup and the Mocs pushed the lead to 12. Rogan made another 3, and right after, Easley made 1 of 2 free throws and Chattanooga led by double digits the rest of the way.
Chattanooga went to the free-throw line 22 times in the second half compared to just nine trips before the break.
Powell scored 15 for Cumberland, Andrew Rogan had 14 and Kareem Wright scored 11.