Mike Rostampour added 11 points with 11 rebounds for the Mavericks (2-1), who shot 57.1 percent from the field and had five players in double figures. Tre'Shawn Thurman chipped in 12 points on 6-of-7 shooting and Rylan Murry scored 10.
Omaha broke away from a second-half tie with a 17-4 surge sparked by a 3-pointer and five free throws from Patterson to make it 83-70 with 4:05 left. The Mavericks sank 10 of 12 free throws in the final two minutes to ice it, finishing 26 of 30 from the line overall.
Thurman grabbed seven rebounds and Carter had six, leading to a 40-24 advantage in rebounding for Omaha.