Per the LA Times:
SOUTHERN CALIFORNIA REGIONAL
OPEN DIVISION
Regional semifinals, Saturday, 6 p.m.
#4 Corona Centennial at #1 Etiwanda
#3 Sierra Canyon at #2 La Jolla Country Day
DIVISION I
Second round, Thursday
Rosary 56, Viewpoint 42
Windward 54, Bakersfield 44
Bishop Montgomery 67, Camarillo 49
Orangewood Academy 42, Granada Hills 30
Regional semifinals, Saturday, 6 p.m.
#4 Windward at #1 Rosary
#3 Bishop Montgomery at #2 Orangewood Academy
DIVISION II
Second round, Thursday
Corona Santiago 88, Chula Vista Bonita Vista 75
La Jolla Bishop’s 74, Brentwood 69
Sage Hill 42, Long Beach Poly 39
Ontario Christian 69, Newport Beach Pacifica Christian 58
Regional semifinals, Saturday, 6 p.m.
#13 La Jolla Bishop’s at #1 Corona Santiago
#6 Sage Hill at #2 Ontario Christian
DIVISION III
Second round, Thursday
La Salle 47, San Diego Rancho Bernardo 35
San Diego Scripps Ranch 56, Hanford Sierra Pacific 52
Porterville 55, Carlsbad 54
Orcutt Academy 66, Shadow Hills 54
Regional semifinals, Saturday, 6 p.m.
#5 San Diego Scripps Ranch at #1 La Salle
#15 Orcutt Academy at #3 Porterville
DIVISION IV
Second round, Thursday
Yucca Valley 72, Corcoran 42
King/Drew 48, Los Angeles CES 46
Imperial 43, San Marcos 30
Trinity Classical 56, San Bernardino 41
Regional semifinals, Saturday, 6 p.m.
#5 King/Drew at #1 Yucca Valley
#6 Imperial at #2 Trinity Classical
DIVISION V
Second round, Thursday
Verdugo Hills 59, Bakersfield Highland 51
Shalhevet 68, Maywood CES 27
Vista Rancho Buena Vista 74, Laguna Beach 26
Chula Vista Victory Christian 81, Price 30
Regional semifinals, Saturday, 6 p.m.
#4 Shalhevet at #1 Verdugo Hills
#3 Vista Rancho Buena Vista at #2 Chula Vista Victory Christian
NOTES: Regional finals in all divisions, Tuesday, 6 p.m. State championships, Mar. 11-12 at Golden 1 Center (Sacramento).
NORTHERN CALIFORNIA REGIONAL
OPEN DIVISION
Regional semifinals, Saturday, 6 p.m.
#5 El Dorado Hills Oak Ridge at #1 Concord Carondelet
#3 Fresno Clovis West at #2 San Jose Mitty
DIVISION I
Second round, Thursday
Richmond Salesian 80, Elk Grove Laguna Creek 51
Oakland Bishop O’Dowd 54, San Jose Valley Christian 47
San Francisco St. Ignatius 54, Fairfield Vanden 50
Stockton St. Mary’s 50, Santa Rosa Cardinal Newman 46
Regional semifinals, Saturday, 6 p.m.
#4 Oakland Bishop O’Dowd at #1 Richmond Salesian
#3 San Francisco St. Ignatius at #2 Stockton St. Mary’s
DIVISION II
Second round, Thursday
Stockton Lincoln 63, Piedmont 56
Fresno San Joaquin Memorial 50, Los Gatos 36
Atherton Menlo 59, Caruthers 55
Antelope 60, Sacramento McClatchy 58
Regional semifinals, Saturday, 6 p.m.
#8 Stockton Lincoln at #5 Fresno San Joaquin Memorial
#10 Antelope at #3 Atherton Menlo
DIVISION III
Second round, Thursday
Lincoln 42, San Bruno Capuchino 38
Fresno Central 52, Clovis Buchanan 42
Oakland Tech 78, Dixon 38
Portola Valley Woodside Priory 74, San Jose Evergreen Valley 27
Regional semifinals, Saturday, 6 p.m.
#12 Fresno Central at #1 Lincoln
#7 Portola Valley Woodside Priory at #3 Oakland Tech
DIVISION IV
Second round, Thursday
Millbrae Mills 48, Redding University Prep 35
Jackson Argonaut 66, San Jose Harker 53
Ross Branson 57, San Francisco Gateway 36
San Andreas Calaveras 52, Auburn Placer 32
Regional semifinals, Saturday, 6 p.m.
#12 Jackson Argonaut at #8 Millbrae Mills
#3 Ross Branson at #2 San Andreas Calaveras
DIVISION V
Second round, Thursday
Hillsborough Crystal Springs Uplands 50, Grass Valley Bear River 43
San Anselmo San Domenico 50, Orland 34
Weaverville Trinity 42, Concord Mt. Diablo 38
San Francisco University 64, Angels Camp Bret Harte 57
Regional semifinals, Saturday, 6 p.m.
#8 Hillsborough Crystal Springs Uplands at #4 San Anselmo San Domenico
#6 Weaverville Trinity at #2 San Francisco University
NOTES: Regional finals in all divisions, Tuesday, 6 p.m. State championships, Mar. 11-12 at Golden 1 Center (Sacramento).