Mountain View defeated Cottonwood 76-72, while Dixie beat Ridgeline 68-58 and Provo edged Judge Memorial 67-55.
Mountain View's Jake Goodmann scored 17, and Provo's Callen Tollestrup led with 26 points. Provo advances to face No. 8 Sky View, and Crimson Cliffs also won 59-57 over Murray to move on to the quarterfinals.