Round 4 (March 9, 2012)
Indio @ Granite Hills
Woodcrest Christian @ Chino
Heritage @ Glendora
Oak Hills @ Kaiser
Chino Hills @ Temecula Valley
Chaparral @ Etiwanda
Norco @ Valley View
Vista Del Lago @ M.L. King
Diamond Ranch @ Rialto
Ramona @ Riverside Poly
Summit @ Moreno Valley
Ontario Christian @ Colton
Arroyo Valley @ A.B Miller
San Bernardino @ Fontana
Eisenhower @ Rubidoux
Lakeside @ Pomona