LAS VEGAS - Shelby Cheslek tied her career high with 16 points as the No. 1 seeded Gonzaga women's basketball team knocked off No. 4 BYU 62-43 in the semifinals of the West Coast Conference tournament Saturday afternoon at the Orleans Arena.

The Bulldogs will now play in their seventh-straight championship game, against No. 2 seed San Diego - which defeated No. 3 seed Saint Mary's 74-53 in the other semifinal - on Monday at 1 p.m. (ESPNU, KEY 1050).

"I'm so proud of this team," Gonzaga coach Kelly Graves said. "I don't think we have ever played such a physically tough game. We were out there being tough mentally; we were in it the whole time with the right mindset."

Cheslek, a redshirt sophomore center from Pullman High, hit 6 of 9 from the field and 4 of 5 free throws. She also grabbed a game-high eight boards. Sophomore forward Sunny Greinacher added 10 points, eight of which came in the second half, and freshman Kiara Kudron came off the bench to chip in a career-high eight.

The Cougars' leading scorers - Haley Steed and Jennifer Hamson, who were averaging 10.3 points and 10.8 points per game, respectively - were held to 13 points combined and went 5 of 17 from the field.

BYU was led by Morgan Bailey, who came off the bench to score 12 points.

"With BYU, you have to pick your poison," Graves said. "They have arguably one of the best guards in the nation, a post that demands attention, and they shoot remarkably well. Today we tried to make them score two at a time and we did a pretty good job. We made them earn every shot."

Leading 18-17, the Zags rattled off a 12-2 spurt that closed out the half and gave them the 30-19 advantage. Cheslek started things off with a layup, followed by two free throws, while Kudron came off the bench to score six of GU's final eight points.

BYU was held to 0-of-5 shooting during this stretch and turned the ball over once. The Cougars' only points came on two free throws by Steed with 49 seconds left before intermission. All in all, BYU was held without a field goal for the final 3:52.

Greinacher started the second half with a layin followed by a 3-pointer by junior guard Haiden Palmer, which forced BYU to call a timeout two minutes into the final period with the Zags up 16 at 35-19.

Three minutes later Gonzaga's edge was 18 points with the help Cheslek who scored back-to-back layups to put the score at 42-24.

BYU pulled within 44-32 with 11:39 remaining.

A jumper by Palmer stopped BYU's momentum and started a 15-4 run that blew the game open and gave Gonzaga its largest lead of the game at 59-36 with 2:40 left.

Notes: Gonzaga extended its win streak to 14 games ... BYU was held to a season-low 43 points and was dealt their first-ever WCC Tournament loss after winning its previous three contests ... Gonzaga senior Taelor Karr fell hard on her back after getting fouled on a rebound; she returned to the game and played 24 minutes.