By John Marshall

The Associated Press

Next up

Oregon vs. Utah

When: 8:30 p.m. Thursday

TV: Pac-12

LAS VEGAS — Ehab Amin scored 17 points, Miles Norris added 14 and Oregon rolled over Washington State 84-51 Wednesday night in the most lopsided game in Pac-12 tournament history.

The sixth-seeded Ducks (20-12) jumped on the Cougars from the start, racing out to a 15-point lead in the opening 12 minutes. Oregon shot 49 percent from the floor and had 14 steals to earn a spot in Thursday’s quarterfinals against No. 3 seed Utah.

The tournament’s largest margin of victory had been 32, accomplished twice.

Washington State (11-21) shot 31 percent, went 7 for 32 from the 3-point line and didn’t hit double-digits in points until the 5:34 mark of the first half

The 11th-seeded Cougars had 20 turnovers that led to 26 Oregon points in their ninth straight one-and-done trip to the Pac-12 tournament.

Washington State had no players score in double figures.

Oregon and Washington State were in the same position a year ago, both with the same seedings and Utah up next. Oregon won 64-62 in overtime.

The Ducks closed the regular season with four straight wins, including their second double-digit win over the Cougars.

Oregon’s late-season run coincided with a lineup change, with four players 6-foot-9 starting alongside Payton Pritchard. The big lineup helped the Ducks hold four straight opponents to 62 points or less, a program first in the shot-clock era (since 1985-86).

Oregon certainly had Washington State on lockdown.

The Ducks swarmed the Cougars into turnovers and missed shots, starting the game with an 18-3 run.

Washington State had 10 turnovers in the opening 10 minutes and 16 to trail 37-20 at halftime. The Cougars shot 5 of 22, including 4 for 17 from 3 in the first half.