Backup quarterback Connor Halliday threw four first-half touchdown passes to help Washington State beat UNLV 35-27 on Friday night.
Starting in place of the injured Jeff Tuel, Halliday threw two touchdown passes to Marquess Wilson, and also teamed with Gabe Marks and Isiah Myers on first-half scoring strikes.
Halliday completed 26 of 45 passes for 378 yards and had two interceptions.
Washington State (2-1) held off UNLV (0-3) after the Rebels regained possession with 40 seconds left in the game. UNLV was unable to advance past the Washington State 42.
Marks led the Cougars with six catches for 126 yards, and Wilson had five receptions for 110 yards.
Nick Sherry completed 33 of 49 passes for 351 yards and three touchdowns for UNLV. He also threw an interception. Marcus Sullivan had six catches for 136 yards and two touchdowns.
Washington State took a 7-0 lead when Halliday threw a 4-yard touchdown pass to Wilson with 8:17 left in the first quarter. The eight-play, 70-yard drive was highlighted by a 47-yard pass from Halliday to Marks that put the ball on UNLV's 4-yard line.
The Cougars increased their lead to 14-0 with 4:25 left in the first quarter, when Myers caught an 18-yard TD pass from Halliday. The drive was set up by Tyree Toomer's interception for the Cougars.
UNLV cut the Cougars' lead to 14-7 when Sullivan caught a 37-yard TD pass from Sherry with 2:36 remaining in the first quarter.
The second quarter featured three long TDs. Marks caught a 52-yard pass that made it 21-7. After a field goal made it a 11-point game, Wilson caught an 81-yard TD pass with 5:27 left in the period.
Just 13 seconds later, Sullivan caught his second TD pass from Sherry -- this one for 75 yards -- to cut the Cougars' lead to 28-17.
Following a scoreless third quarter, Leon Brooks completed an 88-yard drive by running three yards for a touchdown with 14:07 in the fourth quarter, giving the Cougars a 35-20 lead.
The Rebels made it a one-possession game in favor of the Cougars at 35-27 when Sherry threw a four-yard TD pass to Jake Phillips with 1:44 left in the fourth quarter.
The Rebels now have lost eight consecutive games dating back to the 2011 season.