WACO, Texas -- Brittney Griner scored a Big 12 single-game record 50 points in her final regular-season game at Baylor -- including her first dunk at home since she was a freshman -- to lead the top-ranked Lady Bears to a 90-68 victory over Kansas State on Monday night.

Baylor (29-1, 18-0 Big 12) wrapped up its second consecutive undefeated conference title, becoming the first team to twice go through Big 12 play without a loss. The Lady Bears have won a record 46 consecutive Big 12 games, including tournament games, and have won 55 in a row at home.

Only four of Griner's 14 career dunks have come at the Ferrell Center, and the last had been Jan. 2, 2010, when she had two in the same game against Texas State.

Her third career dunk against K-State (14-16, 5-13) came with 16:56 left, when the 6-foot-8 two-time All-American got a pass from Kimetria Hayden, took a step around a defender along the baseline and went up for a one-handed slam that sent the record-tying crowd of 10,627 into a frenzy.

Brittney Chambers had 22 points to lead five K-State players in double figures.

Kansas State hit 15 3-pointers, including four in the first 4 minutes of the second half to keep the Wildcats close despite Griner's rim-rocking highlight.

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Griner's dunk put Baylor up 54-45, but Chantay Caron responded with a 3-pointer for the Wildcats and then stole the ball from Griner, leading to a layup by Haley Texada that cut the gap to 54-50.

The Wildcats were within 63-60 when Chambers leaned in to make a tough layup with just under 12 minutes left. But they never got closer as Baylor responded with a 23-2 run over the next 9 minutes.

After Griner got her 50th point with just over 2 minutes left, Baylor called timeout. She excitedly jumped around and into arms of Hayden, and got a huge ovation as the fans chanted "Thank you seniors!"

All five Baylor seniors in uniform were in the starting lineup. They were also honored in a postgame ceremony, along with student assistant Shanay Washington, a former Lady Bears guard who didn't play again after sustaining her fifth torn anterior cruciate ligament at end of last season. It happened three times at Baylor after twice in high school.

Baylor opens the Big 12 tournament Saturday in Dallas. The Lady Bears will open the NCAA tournament at home in three weeks.