UT Arlington improves to 20-26 after Callie Collins' second win over ACU this season.
UT Arlington went to 17-24 overall and 2-9 in Sun Belt Conference play.
The Mavericks are looking for their first conference win as the face the Jaguars in a Saturday doubleheader starting at noon CT and again Sunday at 11 a.m.
The Mavericks drop to an even .500 (13-13) and are 0-2 in the San Diego Classic II.
UT Arlington fell 4-3 to New Mexico State.