Las Vegas -- Tre'Von Willis scored a game-high 33 points Saturday, leading Nevada-Las Vegas to an 88-74 Mountain West upset of 12th-ranked Brigham Young.
UNLV streaked to a 15-2 lead, with Willis capping a 15-0 spurt on two free throws with 14:40 left in the first half.
The lead was 56-34 at the break in a game BYU led only once -- 2-0 on Jimmer Fredette's game-opening layup.
BYU's 79-61 lead on a Willis layup with 6:30 left proved insurmountable for the Cougars.
Matt Shaw scored 13 with five rebounds, while Oscar Bellfield added 12 points for the Rebels (19-4, 7-2), who have won five straight.
Fredette led BYU with 21 points, six assists and seven rebounds.