CIF Southern Section Open Division boys basketball history: all-time records, past champions

Consider this the Wikipedia page for the high school boys basketball CIF Southern Section Open Division, which was created in 2014.

Notes to consider ...

The format of the Open Division has changed through the years. From 2014-17, the field consisted of 16 teams with a losers bracket. From 2018-24, the field went to eight teams. The Open went to pool play (instead of bracket) in 2019. The Open Division got a face lift in 2024-25 when the field went to 10 teams, consisting of two pools of five teams. In 2026, it was a 12-team field.

The 2024-25 season also marked the first time the CIF Southern Section went away from the committee-approach to select Open Division teams and implement its new 'competitive equity' model that uses computer rankings to place teams in playoff divisions based on current season performance.

WORTH NOTING: Only Sierra Canyon has been part of the Open Division playoffs every year since its creation. Only 10 programs since 2014 have made the finals. Only seven programs have won the Open. And only four teams have won it multiple times.

OPEN DIVISION BY THE NUMBERS

Here is a breakdown of Open Division competition from 2014 to 2026.

IMPORTANT: Wins calculated are only on winners' side of bracket and does not include wins/losses in the losers' bracket from 2014-18.

ALL-TIME RECORDS

(In order of games played)

Sierra Canyon, 29-11 (40)
Mater Dei, 22-11 (33)
Centennial, 18-13 (31)
St John Bosco, 9-18 (27)
Harvard-Westlake, 18-8 (26)
Bishop Montgomery, 16-9 (25)
Etiwanda, 10-10 (20)
Notre Dame, 9-6 (15)
Redondo Union, 7-7 (14)
Damien, 6-8 (14)
Chino Hills, 10-3 (13)
Roosevelt, 9-3 (12)
Santa Margarita, 3-8 (11)
La Mirada, 3-5 (8)
JSerra, 2-5 (7)
Rancho Christian, 3-4 (7)
Crespi, 1-4 (5)
Heritage Christian, 0-5 (5)
Orange Lutheran, 2-2 (4)
JW North, 2-2 (4)
West Ranch, 2-1 (3)
St Pius, 2-1 (3)
Rancho Verde, 1-2 (3)
Long Beach Poly, 1-2 (3)
St Bernard, 0-3 (3)
Crean Lutheran, 0-3 (3)
Ribet Academy, 0-3 (3)
St Anthony, 0-3 (3)
Cantwell Sacred Heart, 0-3 (3)
Corona del Mar, 0-3 (3)
Inglewood, 1-1 (2)
Cathedral, 1-1 (2)
Mayfair, 1-1 (2)
Loyola, 1-1 (2)
Compton, 0-2 (2)
Alemany, 0-2 (2)
Los Alamitos, 0-1 (1)
Esperanza, 0-1 (1)
Crossroads, 0-1 (1)
Oak Park, 0-1 (1)
Price, 0-1 (1)
Gardena Serra, 0-1 (1)
Chaminade, 0-1 (1)

PAST CHAMPIONS, FINAL RESULTS

2026: Sierra Canyon | def. Harvard-Westlake, 59-53
2025: Roosevelt | def. Notre Dame/SO, 74-67
2024: Harvard-Westlake | def. Roosevelt, 54-47
2023: Corona Centennial | def. St. John Bosco, 58-56
2022: Corona Centennial | def. Harvard-Westlake, 68-48
2021: Corona Centennial | def. Sierra Canyon, 82-70
2020: Sierra Canyon | def. Mater Dei, 59-48
2019: Sierra Canyon | def. Bishop Montgomery, 64-57
2018: Mater Dei | def. Sierra Canyon, 55-53
2017: Bishop Montgomery | def. Mater Dei, 70-55
2016: Chino Hills | def. Sierra Canyon, 105-83
2015: Bishop Montgomery | def. Etiwanda, 56-50
2014: Mater Dei | def. Chino Hills, 48-44

Total Open Division championships: Sierra Canyon (3), Centennial (3), Mater Dei (2), Bishop Montgomery (2), Chino Hills (1), Harvard-Westlake (1), Roosevelt (1)

Open Division finals records: Sierra Canyon 3-3, Centennial 3-0, Mater Dei 2-2, Bishop Montgomery 2-1, Harvard-Westlake 1-2, Chino Hills 1-1, Roosevelt 1-1, St. John Bosco 0-1, Notre Dame 0-1, Etiwanda 0-1

YEAR-BY-YEAR RECORDS

IMPORTANT: The following records reflect include winners' side of bracket play, pool play and finals. Asterisks denote champion.

2014	2015
Mater Dei 4-0*	B. Montgomery 4-0*
Chino Hills 3-1	Etiwanda 3-1
Redondo Union 2-1	Mater Dei 2-1
JW North 2-1	Sierra Canyon 1-1
Etiwanda 1-1	Centennial 1-1
Loyola 1-1	Damien 0-1
Centennial 1-1	R. Poly 0-1
Mayfair 1-1	Redondo Union 0-1
Chaminade 0-1	Cathedral 0-1
B. Montgomery 0-1	Chino Hills 1-1
Compton 0-1	Cantwell SH 1-1
Serra 0-1	JW North 0-1
St. John Bosco 0-1	O-Lu 2-1
Cathedral 0-1	Alemany 0-1
Cantwell SH 0-1	St. John Bosco 0-1
Sierra Canyon 0-1	Price 0-1

2016	2017
Chino Hills 4-0*	B. Montgomery 4-0*
Sierra Canyon 3-1	Mater Dei 3-1
B. Montgomery 2-1	Sierra Canyon 2-1
Mater Dei 2-1	Centennial 0-1
Alemany 0-1	Damien 1-1
Inglewood 1-0	Santa Margarita 1-1
Centennial 1-1	Oak Park 0-1
RedondoUnion 1-1	Crossroads 0-1
Crespi 0-1	Redondo Union 0-1
O-Lu 0-1	Roosevelt 1-1
Roosevelt 0-1	Alemany 0-1
Los Alamitos 0-1	LB Poly 1-1
Cantwell SH 0-1	JSerra 0-1
Compton 0-1	Chino Hills 2-1
Damien 1-1	Esperanza 0-1
Santa Margarita 0	Heritage Christian 0-1

2018	2019
Mater Dei 3-0*	Sierra Canyon 4-0*
Sierra Canyon 2-1	B. Montgomery 2-2
B. Montgomery 1-1	Rancho Chr. 2-1
Etiwanda 1-1	Mater Dei 2-1
Rancho Chr. 0-1	Rancho Verde 1-2
Crespi 0-1	Etiwanda 1-2
St. John Bosco 0-1	Centennial 1-2
Santa Margarita 0-1	St. John Bosco 0-3

2020	2021
Sierra Canyon 4-0*	Centennial 4-0*
Mater Dei 3-1	Sierra Canyon 3-1
Etiwanda 2-1	Damien 2-1
Rancho Chr. 1-2	Etiwanda 2-1
Centennial 1-2	Mater Dei 1-2
Harvard-Westlake 1-2	St. John Bosco 1-2
St. John Bosco 1-2	Harvard-Westlake 1-2
St. Anthony 0-3	Ribet Academy 0-3

2022	2023
Centennial 4-0*	Centennial 4-0*
Harvard-Westlake 3-1	St. John Bosco 2-2
Sierra Canyon 2-1	Harvard-Westlake 2-1
B. Montgomery 2-1	West Ranch 2-1
Damien 1-2	Notre Dame/SO 2-1
Mater Dei 1-2	B. Montgomery 1-2
Crean Lutheran 0-3	Sierra Canyon 0-3
Notre Dame/SO 0-3	St. Bernard 0-3

2024	2025 (10 teams)
Harvard-Westlake 4-0*	Roosevelt 5-0*
Roosevelt 3-1	Notre Dame 4-1
Sierra Canyon 2-1	Harvard-Westlake 3-1
St. Pius 2-1	St. John Bosco 2-2
JSerra 1-2	Sierra Canyon 2-2
St. John Bosco 1-2	Redondo Union 2-2
Centennial 0-3	JSerra 1-3
Mater Dei 0-3	Santa Marg. 1-3
	La Mirada 1-3
	Heritage Chr. 0-4

2026 (12 teams)
Sierra Canyon 5-0*
Harvard-Westlake 4-1
Redondo Union 2-1
Notre Dame 2-1
La Mirada 2-2
Santa Margarita 1-2
Crespi 1-2
Corona Centennial 1-2
Damien 1-2
St. John Bosco 1-2
Corona del Mar 0-3
Etiwanda 0-3

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