The Mavericks dropped to 16-23 overall and 8-9 in the Sun Belt Conference.
Eric Tate went 4-5 and drove in two runs in Saturday's victory at Georgia State.
The Mavericks return to Sun Belt action with a three-game series at Georgia State beginning Friday.
UTA won its fifth straight Sun Belt game to open the day, but lost the second in extra innings.
UT Arlington dropped to 7-15 overall and 0-4 in the Sun Belt Conference.