The Gophers shot 51.7 percent from the floor in the first half of Thursday’s game.
Diamond Miller had 23 points for the Terps, who extended their win streak to nine games.
The Terps are undefeated since her injury on Dec. 3.
Owusu and Miller scored 20 points each.
"We're just trying to do different things to make us a championship team."
"I was able to do it all."
Mimi Collins scored a career-high 22 points to lead the Terps.
The pair combined to hit 19 threes in the opening three games of the season.
Katie Benzan tied a school record with eight three-pointers.