Elias Harris had 18 points, Kelly Olynyk scored 15 and the seventh-ranked Gonzaga Bulldogs eked out a 65-63 win over an upset-minded San Diego Toreros squad.
Gary Bell, Jr. supplied 13 points for the Bulldogs (21-2, 8-0 WCC), who closed the game on a 12-6 run to avoid experiencing the same fate as other Top-10 teams.
No. 1 Michigan, No. 2 Kansas, No. 6 Syracuse and No. 10 Oregon all lost on Saturday.
Johnny Dee paced San Diego (11-12, 4-4) with a game-high 21 points.
Dee hit a jumper to put the Toreros up 57-53 with 7:42 remaining. Gonzaga fought back and a Olynyk layup gave the visitors a 63-59 lead with 2:24 to play.
After a San Diego basket, David Stockton restored the Bulldogs' four-point lead by connecting on a runner in the lane with 55.9 seconds left. Dennis Kramer then converted the putback of Jito Kok's missed dunk with 9.4 seconds remaining.
The Toreros still had a chance after Olynyk missed the front end of a one-and- one with eight seconds left, but Harris blocked Ken Rancifer's 3-point shot.
Gonzaga closed out the first half on a 12-1 burst to take a 36-27 lead into the break.
Olynyk and Harris both had eight rebounds ... Kramer scored 10 points, while Chris Anderson finished with nine points, seven rebounds and 11 of San Diego's 12 assists ... The Bulldogs have won 25 straight regular-season games in this series.