Castle Rock was 13 of 22 from 3-point range and cruised past King's Way.
Castle Rock improved to 18-0 on the season with the Trico League win over visiting La Center.
La Center knocked down 10 of 12 free throws in the overtime period as the Wildcats grinded out a tough Trico League road win.
Macee Utecht scored 12 points and Nicole Seidl added 11 as Castle Rock all but wrapped up the Trico League title in a battle of two ranked teams.
Troy Flanagen scored 10 fourth-quarter points, including three big free throws late, as the host Beavers won a close battle.
Columbia River cut an 18-point fourth-quarter deficit down to four points in the final minute but could get no closer in a non-game against Castle Rock.
The visiting Rockets made the plays and the free throws needed down the stretch to put away the Bulldogs.
Justin James scored nine points to lead Seton Catholic in a defensive Trico League.
Elle Tilkin had 10 points, five rebounds and one steal as the Hawks struggled to keep up with a balanaced Castle Rock attack.
The Wildcats attacked the basket on offense and the passing lanes on defense to turn the tide after halftime and sure past the visiting Rockets.