Ayoni Benevidez scored 29 points and fourth-seeded Kennewick eliminated visiting fifth-seeded Rogers 72-52 in a District 8 3A first-round game on Tuesday.
Blaine Chavez added 17 points for Kennewick (14-6), which faces top-seeded Mt. Spokane on Friday.
Evan Nomee led the Pirates (5-16) with 19 points and Corbin Staker added 11.
Southridge 69, North Central 51: Donovan Perry scored 26 points and the visiting Suns (8-13) eliminated the Indians (3-18).
Southridge faces second-seeded Kamiakin in a semifinal on Friday.
Levi Edwards led NC with 24 points.
Kamiakin 50, North Central 39: Regan Clark scored 23 points and the visiting Braves (5-16) eliminated the Indians (7-14) in a first-round game.
Kamiakin takes on second-seeded Kennewick in a semifinal on Friday.
Sara Patrick led NC with eight points, while Greta Marko added seven.
Hermiston 73, Shadle Park 35: Jazlyn Romero scored 16 points and the fourth-seeded Bulldogs (14-7) eliminated the visiting fifth-seeded Highlanders (6-15).
Mia Hernandez added 14 points and Jayden Ray had 13 for Hermiston, which faces top-seeded Mt. Spokane in a semifinal on Friday.