The Mavericks fall to 11-9 overall, including 0-2 against Texas Tech on the season.
UTA finished the tournament 4-2, improving to 10-6 on the season.
UTA defeated Creighton 5-4 and UMKC 4-3 in Saturday action.
The Mavericks finished 3-2 in the Red Desert Classic after splitting the first two days.
UT Arlington looks to replace its all-time strikeout leader with a trio of pitchers.