LeKeisha Gray scored 21 points to lead the Broncos (8-8).
Kathleen Nash had 11 points and seven rebounds for Texas, which matched a season high with 51 first-half points and topped 90 for the fifth time this season.
The Longhorns made their first three 3-pointers of the game and quickly jumped out to a 30-6 lead less than 10 minutes in.
Texas point guard Carla Cortijo injured her left shoulder early in the first half and left the game for X-rays. Her status will not be known until Saturday.
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