UNT (4-0) is off to its best start since 1990 despite the fact that junior Roosevelt Smart, who averaged a team-high 19.5 points per game as a sophomore, is yet to play while recovering from a calf strain. Last season, under first-year coach Grant McCasland, the Mean Green had their first 0-win campaign since 2010-11.
Simmons scored nine points during a 12-2 run to open the game and the Mean Green never trailed. Duffy hit a 3-pointer and converted a 3-point play as they scored 11 of the last 13 first-half points to push the lead back into double figures for good and make it 35-17 at the break.
The Mean Green made 27 of 55 from the field and scored 26 points off 17 Hawaii turnovers.
The Rainbow Warriors, who came in shooting 39 percent from 3-point range and 46 percent overall, shot 37 percent from the field, including 6 of 24 from behind the arc.