Senior guard Malaika Green paced the Mavericks with 10 points.
The Mavericks gall to 6-21 overall and3-13 in conference play while Utah State picks up its 13th win of the season.
The Mavericks shot just 29.4 percent from the floor compared to the Spartains 44.4 percent.
The Mavericks shot a season-high 50.7 percent from the field in the 82-57 win.
The Mavericks fell to 5-19 overall and 3-11 in the WAC.