LAS VEGAS (AP) — Chris Boucher had 19 points and 11 rebounds, and No. 8 Oregon withstood a late flurry to hold off Washington 83-77 in the Pac-12 Tournament quarterfinals Thursday.

Top-seeded Oregon (26-6) built an 11-point lead midway through the second half, but Andrew Andrews brought the Huskies back with a quick scoring flurry. The senior guard scored 10 of his 19 points during the run, helping eighth-seeded Washington (18-14) pull within two late.

The Ducks held, though, hitting four free throws in the final 33 seconds to earn a spot in Friday night's semifinals against No. 15 Arizona or Colorado.

Elgin Cook scored 19 points, Tyler Dorsey 17 and Dillon Brooks added 15 for the Ducks.

Marques Chriss scored 19 points for the Huskies.