Kevin Marfo had 14 points and 12 rebounds for Quinnipiac (8-5, 3-0 Metro Atlantic Athletic Conference), which earned its fourth straight victory. Matt Balanc added 12 points and 10 rebounds. Jacob Rigoni had 10 points and seven rebounds for the hosts.
The Bobcats are off to a 3-0 start in the MAAC for the first time.
Raheem Solomon, the Purple Eagles' second-leading scorer entering the contest at 12 points per game, scored three points (1 of 10).
Quinnipiac plays Monmouth at home on Sunday. Niagara takes on Iona on the road on Sunday.