Olynyk also hauled down eight rebounds while Elias Harris provided 18 points and eight boards for the Bulldogs (21-2, 8-0 WCC), who remained undefeated in conference play with their 12th win in 13 games overall.
Gary Bell Jr. also reached double figures with 13 points in Gonzaga's victory.
Johnny Dee paced the Toreros (11-12, 4-4) with 21 points and seven rebounds.
Christopher Anderson supplied nine points and 11 assists for San Diego.
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