The Runnin' Rebels entered fifth in the country in field-goal percentage (51.0), eighth in scoring (86.2) and 20th in rebounding (40.1). UNLV shot 50 percent and outrebounded SJSU 44-24.
Welage nailed a 3 for the last basket of the first half to reach 139 career makes, passing Adrian Oliver for second in program history.
UNLV came out on top in the first matchup this season, 82-76 in overtime. The Spartans beat UNLV in both meetings last season making it the first time doing so since the 1993-94 season.
Kansas State heads to West Virginia with Wade ailing
The word of the day will be "short-handed" when No. 18 Kansas State and West Virginia face off Monday in a Big 12 game in Morgantown, W.Va.
Williams throws down one-handed hammer
Cincinnati's Keith Williams finishes a fast break with a vicious jam.
Winston drops dime to Goins for the jam
Cassius Winston throws the perfect bounce pass to Kenny Goins, who finishes with authority.