Cassidy Gardner scored 25 points, Brooke Walling added 18 and the Falcons used a smothering defense to easily win a non-league game at home.
Prairie (12-1) collected 22 steals against a team that entered Saturday 10-3.
“We played probably our best defensive game of the year,” Prairie coach Hala Corral said. “It was a fun game to watch and a fun game to coach.”
Prairie was effective from the perimeter as 14 of its 29 field goals were from 3-point range.
PRAIRIE 81, ROGERS-PUYALLUP 26
ROGERS-PUYALLUP (10-4) — Jazmyne Lillie 0, Raigan Barrett 5, Allyson Pettit 4, Cassie Force 4, Brennah Llanos 0, Rachel Wicker 6, Makenzi Smalling 2, Kaylie Stallcop 2, Nyekuar Quik 0, Alexus Jackson 0, Maddie Egan 1, Kalie Steffen 0, Jenai Ancheta 2. Totals 7 (1) 11-14 26.