Jackie Lanz hit 5 3-pointers and finished with 19 pointers to lead the Falcons into the championship game of the 3A bi-district tournament.
The Falcons will face Wilson of Tacoma in the title game at 4 p.m. Monday at ShoWare Center in Kent.
Kelsey Asplund added 15 points, and Cori Woodward had 14. Woodward hit 3 3-pointers as the Falcons buried 10 in the game.
Prairie played the game without head coach Al Aldridge, who remained home sick.
PRAIRIE 75, TIMBERLINE 47
TIMBERLINE — Allen 2, Martin 2, Borja 10, Owens 4, McKee 8, Clayton 9, Weber 12. Totals 17 (4) 11-13 47.
PRAIRIE — Lindsay Asplund 0, Cori Woodward 14, Heather Corral 9, Kelsey Asplund 15, Nicole Goecke 0, Emily Peters 0, Megan Lindsley 13, Rachel Deaton 1, Andrea Smith 4, Walz 0, Jackie Lanz 19, Mary Banks 0. Totals 29 (10) 7-12 75.