HONOLULU — Klay Thompson scored 20 points, including two key 3-pointers down the stretch, and Washington State held on to upset No. 15 Baylor 77-71 in the semifinals of the Diamond Head Classic on Thursday.

HONOLULU — Klay Thompson scored 20 points, including two key 3-pointers down the stretch, and Washington State held on to upset No. 15 Baylor 77-71 in the semifinals of the Diamond Head Classic on Thursday.

The Cougars (10-1), who nearly squandered a 20-point second-half lead, withstood a furious rally by the Bears for their fifth straight win. Five players reached double figures for Washington State, which advanced to Saturday's championship game against the winner of the Butler-Florida State semifinal.

Thompson, the son of former No. 1 NBA draft pick Mychal Thompson, made a 3 to give Washington State a 66-64 lead with 4:29 left. He hit another 3 with 1:10 to go and made two free throws with 32 seconds left.

LaceDarius Dunn scored 29 points, all but four in the second half, for the Bears (8-2), while Quincy Acy had 16 points and 12 rebounds.

Washington State shot 57.1 percent from the field while Baylor shot 36.7 percent, including 4 of 22 from 3-point range.

UCLA 74, UC Irvine 73

At Los Angeles, Malcolm Lee and Lazeric Jones scored 20 points apiece to lead UCLA.

The Bruins led by as many as 14 points in the second half, but had to hold off a late run by the Anteaters to preserve their fifth consecutive victory.

Southern California 76,Lehigh 49

At Los Angeles, Jio Fontan scored 21 points and Southern California used a balanced scoring attack to beat Lehigh.

Nikola Vucevic finished with 16 points and 10 rebounds, while Donte Smith had 13 points off the bench for USC (8-5). Alex Stepheson had 11 points and 12 rebounds, and Maurice Jones added eight points.

Arizona State 56,N. Carolina A&T 50

At Tempe, Ariz., Rihards Kuksiks scored 15 points, including a tie-breaking 3-pointer with 2:52 left, and Arizona State rallied to beat North Carolina A&T.

Kuksiks' 3 gave the Sun Devils (7-4), who trailed by 12 in the second half, a 53-50 advantage, and they held on to complete the comeback. ASU ended the game on a 12-0 run and shut out the Aggies over the final 7:51.