Tra Holder scored 19 points and Arizona State erased a 14-point second-half deficit to upset UNLV 66-56 at the Thomas & Mack Center.
Willie Atwood had 14 points and Gerry Blakes added 13 for the Sun Devils (7-3). Blakes' layup pushed Arizona State's lead to 61-55 with 1:47 remaining.
Ike Nwamu and Stephen Zimmerman Jr. scored nine points apiece for the Rebels (8-3) in a lackluster effort.
UNLV surged in front 45-31 on Nwamu's 3-pointer with 17:11 remaining. But in a surprising turnaround, the Sun Devils ripped off a 24-5 run.
Atwood's 3-pointer from the top tied the score at 50 with 8:32 to go, and Eric Jacobsen's free throw gave Arizona State its first lead since 8-7.