Junior forward Lakeisha Johnson led 10 Auburn scorers with 14 points. Senior point guard Carol Smith scored 11 points and sophomore center Tia Miller added 10 points.
The Tigers dominated the boards, 41-27, with Le'Coe Willingham picking up a game-high eight rebounds to go with six points.
Auburn led 37-16 at halftime vs. the Roadrunners in a game played at the Jenny Craig Pavilion. Two nights earlier the Tigers suffered their first loss at the building, falling 80-75 to fifth-ranked Iowa State in overtime.
It was the first women's basketball game ever played between the two schools. UTSA plays in the Southland Conference.
The Tigers had 17 steals and outshot the Roadrunners 47.5 to 36 percent. AU was 15-18 at the free throw line and UTSA hit 7-12 free throws. Auburn had 20 turnovers to 23 for the losers.
Auburn returns to action with its first SEC game as the Florida Gators come to Beard-Eaves Memorial Coliseum for a 2 p.m. contest on Sunday.
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