Tillie leads No. 1 Gonzaga past BYU 92-69.

SPOKANE, Wash. (AP) — Killian Tillie had 22 points and 10 rebounds, and No. 1 Gonzaga beat BYU 92-69 on Saturday night for its 12th consecutive win.

The Zags (20-1, 6-0 West Coast) stretched their home win streak to 34 in a row, tops in the county, and also became the first school to 20 wins this season.

Corey Kispert scored 19 points for Gonzaga, and Joel Ayayi and Admon Gilder had 14 apiece.

Gonzaga closed out its sixth consecutive win against BYU without leading scorer Filip Petrusev, who went down hard early in the second half and was helped off the floor with what appeared to be a leg injury.

T.J. Haws scored 17 points and Jake Toolson had 16 for BYU (14-6, 3-2).

The Cougars played without leading scorer and rebounder Yoeli Childs, who has missed four games with a finger injury. Childs averages 20 points and 10 rebounds per game.

Ryan Woolridge made a 3-pointer and Joel Ayayi sank two free throws to help Gonzaga open a 59-45 lead with 11 minutes left. Kispert’s 3-pointer pushed Gonzaga’s lead out to 71-55.

CONFERENCE DOMINANCE

Gonzaga has won 33 straight regular-season West Coast Conference games, breaking a league record that it shared with the Pepperdine teams of 1991-93.

BIG PICTURE

BYU: The Cougars dealt Gonzaga rare home losses in 2015, 2016 and 2017. … Kolby Lee made all eight of his shots and scored a career-high 21 points in BYU’s previous game, a win over San Diego, but was held in check Saturday.

Gonzaga: Gonzaga reached the 20-win milestone for the 23rd consecutive season

UP NEXT

BYU plays at Pacific next Thursday.

Gonzaga hosts Pacific, which is second in the WCC, next Saturday.