Ariya Crook scored 19 points, including three free throws in the final 30 seconds, as the fifth-seeded
Carissa Crutchfield made a three-pointer with 7:41 to play, pulling Arizona within three, 52-49, but the Wildcats made only one of eight field goals the rest of the way and USC (19-12) held on for the win.
The Trojans will play fourth-seeded
Alexyz Vaioletama pulled down 12 rebounds and Cassie Harberts grabbed 11 for USC, which outrebounded Arizona, 41-30, including 12-4 on the offensive glass. Kama Griffitts paced the Wildcats (5-25) with 13 points and seven rebounds.
In a game of streaks, UCLA scored six unanswered points in just over a minute, cutting a 12-point gap in half. Colorado's Lexy Kresl sank two from the line and on UCLA's next possession Wilson stole the ball from the hot-shooting Nirra Fields with 1:03 to play. Wilson was fouled and made two free throws as the lead grew back to 10 at 72-62 with 1:02 left.