Led by post Joshlyn Noga's 18 points, Kahuku took down top-seeded Kaiser, 64-54, to advance to Friday's semifinals.
Fiatagata Tailele-Latu chipped in 12 points and Rachel Tailele 11 more for the Red Raiders, who will face Kaimuki, a 60-47 upset winner over second-seeded Campbell in an OIA Red semifinal matchup on Friday. Tip off is set for 6 p.m.
Mele Adams poured in a game-high 23 points in the loss. The Cougars will take on Campbell in an elimination bracket game, Friday 6 p.m. at Kaiser.