The Rebels took control of the game early with a goal from Caitlin Allen who headed in a cross into the box off a Macy Jo Harrison free kick in the 13th minute.
UNLV would score once more on a set piece before the end of the half, as Denali Murnan finished with a header off a corner kick.
The Rebels would go on to score three more times during the second period with goals in the 57th, 61st and 66th minutes.
Boise State will look for its first conference win and a weekend split when it travels to San Diego State for an 11 a.m. PT match, Sunday. Live stats for that game are available at http://stats.statbroadcast.com/broadcast/?id=2144.