Ontario Curling Association podzieliło obszar swojej jurysdykcji na 16 stref, po 4 w każdym regionie. Rywalizacja o uczestnictwo w turnieju finałowym zaczyna się już na szczeblu strefowym, w każdym z obszarów rozgrywany jest turniej z nielimitowaną liczbą drużyn, z którego do zawodów regionalnych przechodzą 2 ekipy. W turnieju regionalnym, w którym bierze udział 8 zespołów do turnieju finałowego kwalifikuje się po dwóch najlepszych.
W turnieju prowincjonalnym grają także zwycięzcy Challenge Round East i West oraz obrońca tytułu mistrza Ontario. Łącznie jest to 11 drużyn. Początkowo grają one Round Robin, po wyłonieniu 4 najlepszych zespołów faza finałowa rozgrywana jest systemem Page play-off.
| Rok |
Miasto, klub |
Czwarty |
Trzeci |
Drugi |
Otwierający |
Pozycja na
the Brier[a][1][2] |
| 1927 |
Sarnia, Sarnia Curling Club |
Bob MacKenzie |
Harry Watson |
Melvin Hunt |
William Watson |
5. |
| 1928 |
Toronto, Granite Curling Club |
Victor McWilliams |
John Brandon |
Edward Brower |
Robert Hamilton |
4. |
| 1929 |
Lindsay, Stratford Curling Club |
Frank Carew |
Walter Reesor |
Richard Butler |
Frank Williams |
6. |
| 1930 |
Stratford, Stratford Curling Club |
H. A. Bruce |
Wesley Binkley |
M. A. Humber |
J. W. Lloyd |
10. |
| 1931 |
Toronto, Granite Curling Club |
Edward Brower |
John Rennie |
John Brower |
Robert Hamilton |
 |
| 1932 |
Toronto, Granite Curling Club |
Charles Bulley |
John Brandon |
Tom Black |
Dan DeFoe |
4. |
| 1933 |
Hamilton, Thistle Curling Club |
Gordon Campbell |
Don Campbell |
Gord Coates |
Duncan Campbell |
 |
| 1934 |
Hamilton, Thistle Curling Club |
Gordon Campbell |
Don Campbell |
Gord Coates |
Duncan Campbell |
 |
| 1935 |
Hamilton, Thistle Curling Club |
Gordon Campbell |
Don Campbell |
Gord Coates |
Duncan Campbell |
 |
| 1936 |
Sarnia, Sarnia Curling Club |
Hector Cowan |
William McCart |
Alex Hayes |
Murray Chilton |
5. |
| 1937 |
Kitchener, Granite Curling Club |
Albert Dunker |
Irvin Huntingdon |
Arthur Lehnen |
Fred Hasenflug |
7. |
| 1938 |
Kitchener, Granite Curling Club |
Bert Hall |
Perry Hall |
Ernie Parkes |
Cam Seagram |
6, |
| 1939 |
Kitchener, Granite Curling Club |
Bert Hall |
Perry Hall |
Ernie Parkes |
Cam Seagram |
 |
| 1940 |
Kitchener, Granite Curling Club |
Bert Hall |
Perry Hall |
Ernie Parkes |
Cam Seagram |
5. |
| 1941 |
Kitchener, Granite Club |
Perry Hall |
Jack Lucas |
Art Lehnan |
William Henderson Junior |
 |
| 1942 |
Hamilton, Thistle Curling Club |
Gordon Campbell |
Dunc. Campbell |
Wm. Kennedy |
Rufus Stone |
 |
| 1943 |
Toronto, Granite Curling Club |
K.F. Wadsworth |
E.H. Pooler |
C.H. Brereton |
H.M.S. Parsons |
- |
| 1944 |
Kitchener, Granite Curling Club |
Perry Hall |
Bert Hall |
Art Lehnen |
William Henderson Junior |
- |
| 1945 |
Kitchener, Granite Club |
Perry Hall |
Bert Hall |
Art Lehnen |
William Henderson Junior |
- |
| 1946 |
Kitchener, Granite Club |
Perry Hall |
Bert Hall |
Art Lehnen |
William Henderson Junior |
6. |
| 1947 |
Toronto, Toronto Curling Club |
Nicol MacNicol |
Edmond O’Donnell |
Gordon Denison |
Adam Spencer |
8. |
| 1948 |
Cambridge, Galt Curling Club |
Jack Patrick |
W. Meyer |
W. MacGregor |
A. Oliver |
4. |
| 1949 |
Chatham-Kent, Chatham Curling Club |
Peter Gilbert |
Gordon Gilbert |
Don Painter |
J. DeKoning |
4. |
| 1950 |
Kitchener, Granite Curling Club |
Carl Asmussen |
Larry Shantz |
Cully Schmidt |
Ed Schultz |
5. |
| 1951 |
Toronto, Granite Curling Club |
Gordon Campbell |
Stan Jones |
Reg Mooney |
Colin Campbell |
5. |
| 1952 |
Peterborough, Peterborough Curling Club |
Ralph Clark |
Vic Brown |
Ken Bissett |
Burt Harrison |
5. |
| 1953 |
Chatham-Kent, Chatham Curling Club |
Peter Gilbert |
Gord Gilbert |
Bob Gilbert |
Jim Harrington |
8. |
| 1954 |
Hamilton, Thistle Curling Club |
Ross Tarlton |
Bob Cross |
Gord Wilson |
Ernie Lock |
4. |
| 1955 |
Toronto, Royal Canadian Curling Club |
Andy Grant |
Walter Derrett |
Earle Hushagen |
Ray Grant |
 |
| 1956 |
Toronto, Granite Curling Club |
Alf Phillips Senior |
Reg Mooney |
Stanley Jones |
Bill Leak |
 |
| 1957 |
Orillia, Orillia Curling Club |
Stan Sarjeant |
Roy Hewitt |
Earl Lamb |
Harry Tissington |
5. |
| 1958 |
Unionville, Unionville Curling Club |
Murray Roberts |
Andy Grant |
Ray Grant |
George Rumney |
 |
| 1959 |
Unionville, Unionville Curling Club |
Ted Sellers |
John Grant Junior |
Harold Lawrie |
Carl Sellers |
4. |
| 1960 |
Kingston, Kingston Curling Club |
Jake Edwards |
Bob Elliott |
Joe Corkey |
George Binnington |
4. |
| 1961 |
Orillia, Orillia Curling Club |
Tom Caldwell |
Ross Coward |
Tre Behan |
Frank Milligan |
6. |
| 1962 |
Toronto, Tam Heather Curling Club |
Bayne Secord |
Vernon Larson |
Russell Lindberg |
Dave McDonough |
5. |
| 1963 |
Hanover, Hanover Curling Club |
Robert Mann |
Ken Buchan |
Keith Munro |
Richard Palmer |
5. |
| 1964 |
Hanover, Hanover Curling Club |
Robert Mann |
Ken Buchan |
Keith Munro |
Richard Palmer |
6. |
| 1965 |
Unionville, Unionville Curling Club |
Ray Grant |
Keith Jewett |
Ray McGee |
Al Claney |
6. |
| 1966 |
Mississauga, Dixie Curling Club |
Joe Gurowka |
Tom Howat |
Ken Ingo |
Don Mackey |
 |
| 1967 |
Toronto, Parkway Curling Club |
Alf Phillips Junior |
John Ross |
Ron Manning |
Keith Reilly |
 |
| 1968 |
St. Thomas, St. Thomas Curling Club |
Don Gilbert |
Al Zikman |
Jim Waite |
Dick Ronald |
5. |
| 1969 |
London, London Curling Club |
Ken Buchan |
Garry Weisz |
Mitch Czaja |
Ross Guest |
11. |
| 1970 |
Terrace Bay, Terrace Curling Club |
Paul Savage |
Tom Cushing |
Jerry Downer |
Dave Phillips |
6. |
| 1971 |
Toronto, Avonlea Curling Club |
Bob Charlebois |
Rich Palmer |
Ray Lilly |
Jim McGrath |
4. |
| 1972 |
Ottawa, Ottawa Curling Club |
Eldon Coombe |
Keith Forgues |
Jim Patrick |
Barry Provost |
5. |
| 1973 |
Scarborough, Scarboro Golf & Country Club |
Paul Savage |
Bob Thomson |
Ed Werenich |
Ron Green |
 |
| 1974 |
Scarborough, Scarboro Golf & Country Club |
Paul Savage |
Bob Thomson |
Ed Werenich |
Ron Green |
4. |
| 1975 |
Kingston, Cataraqui Golf & Curling Club |
Alex Scott |
Ted Brown |
Mike Boyd |
Tom Miller |
6. |
| 1976 |
Mississauga, Dixie Curling Club |
Joe Gurowka |
Bob Charlebois |
Ray Lilly |
Jim McGrath |
10. |
| 1977 |
Toronto, Avonlea Curling Club |
Paul Savage |
Ed Werenich |
Ron Green |
Reid Ferguson |
 |
| 1978 |
London, London Curling Club |
Gerry Hodson |
Barry Paterson |
Glen Webster |
Ross Guest |
10. |
| 1979 |
Toronto, Annandale Country Club |
Bob Fedosa |
Bob Turcotte |
Craig Garratt |
Doug Morrison |
5. |
| 1980 |
Penetanguishene, Penetanguishene Curling Club |
Russ Howard |
Larry Merkley |
Robert Ruston |
Kent Carstairs |
7. |
| 1981 |
Toronto, Avonlea Curling Club |
Ed Werenich |
Bob Widdis |
Neil Harrison |
Jim McGrath |
4. |
| 1982 |
Forest, Forest City Curling Club |
Bruce Munro |
Bob Laidlaw |
Clive Bowden |
Bruce Paterson |
6. |
| 1983 |
Toronto, Avonlea Curling Club |
Ed Werenich |
Paul Savage |
John Kawaja |
Neil Harrison |
 |
| 1984 |
Toronto, Avonlea Curling Club |
Ed Werenich |
Paul Savage |
John Kawaja |
Neil Harrison |
 |
| 1985 |
Ottawa, RCN Curling Club |
Earle Morris |
Lovel Lord |
Dave Merklinger |
Bill Fletcher |
10. |
| 1986 |
Penetanguishene, Penetanguishene Curling Club |
Russ Howard |
Glenn Howard |
Tim Belcourt |
Kent Carstairs |
 |
| 1987 |
Penetanguishene, Penetanguishene Curling Club |
Russ Howard |
Glenn Howard |
Tim Belcourt |
Kent Carstairs |
 |
| 1988 |
Toronto, Avonlea Curling Club |
Paul Savage |
Ed Werenich |
Graeme McCarrel |
Neil Harrison |
 |
| 1989 |
Penetanguishene, Penetanguishene Curling Club |
Russ Howard |
Glenn Howard |
Tim Belcourt |
Kent Carstairs |
 |
| 1990 |
Toronto, Avonlea Curling Club |
Ed Werenich |
John Kawaja |
Ian Tetley |
Pat Perroud |
 |
| 1991 |
Penetanguishene, Penetanguishene Curling Club |
Russ Howard |
Glenn Howard |
Wayne Middaugh |
Peter Corner |
7. |
| 1992 |
Penetanguishene, Penetanguishene Curling Club |
Russ Howard |
Glenn Howard |
Wayne Middaugh |
Peter Corner |
 |
| 1993 |
Penetanguishene, Penetanguishene Curling Club |
Russ Howard |
Glenn Howard |
Wayne Middaugh |
Peter Corner |
 |
| 1994 |
Penetanguishene, Penetanguishene Curling Club |
Russ Howard |
Glenn Howard |
Wayne Middaugh |
Peter Corner |
 |
| 1995 |
Toronto, Avonlea Curling Club |
Ed Werenich |
John Kawaja |
Pat Perroud |
Neil Harrison |
4. |
| 1996 |
Ridgetown, Ridgetown Curling Club |
Bob Ingram |
Larry Smyth |
Rob Rumfeldt |
Jim Brackett |
10. |
| 1997 |
Innisfil, Churchill Curling Club |
Ed Werenich |
John Kawaja |
Pat Perroud |
Neil Harrison |
4. |
| 1998 |
Etobicoke, St. George’s Golf & Country Club |
Wayne Middaugh |
Graeme McCarrel |
Ian Tetley |
Scott Bailey |
 |
| 1999 |
Ottawa, Rideau Curling Club |
Rich Moffatt |
Howard Rajala |
Chris Fulton |
Paul Madden |
6. |
| 2000 |
Hamilton, Glendale Golf & Country Club |
Peter Corner |
Todd Brandwood |
Drew Macklin |
Dwayne Pyper |
5. |
| 2001 |
Etobicoke, St. George’s Golf & Country Club |
Wayne Middaugh |
Graeme McCarrel |
Ian Tetley |
Scott Bailey |
 |
| 2002 |
Clearview, Stayner Granite Curling Club |
John Morris |
Joseph Frans |
Craig Savill |
Brent Laing |
 |
| 2003 |
Ottawa, RCMP Curling Club |
Bryan Cochrane |
Bill Gamble |
Ian MacAulay |
John Steski |
9. |
| 2004 |
Oakville, Oakville Curling Club |
Mike Harris |
John Base |
Phil Loevenmark |
Trevor Wall |
6. |
| 2005 |
Etobicoke, St. George’s Golf & Country Club |
Wayne Middaugh |
Graeme McCarrel |
Joe Frans |
Scott Bailey |
6. |
| 2006 |
Coldwater, Coldwater & District Curling Club |
Glenn Howard |
Richard Hart |
Brent Laing |
Craig Savill |
 |
| 2007 |
Coldwater, Coldwater & District Curling Club |
Glenn Howard |
Richard Hart |
Brent Laing |
Craig Savill |
 |
| 2008 |
Coldwater, Coldwater & District Curling Club |
Glenn Howard |
Richard Hart |
Brent Laing |
Craig Savill |
 |
| 2009 |
Coldwater, Coldwater & District Curling Club |
Glenn Howard |
Richard Hart |
Brent Laing |
Craig Savill |
 |
| 2010 |
Coldwater, Coldwater & District Curling Club |
Glenn Howard |
Richard Hart |
Brent Laing |
Craig Savill |
 |
| 2011 |
Coldwater, Coldwater & District Curling Club |
Glenn Howard |
Richard Hart |
Brent Laing |
Craig Savill |
 |
| 2012 |
Coldwater, Coldwater & District Curling Club |
Glenn Howard |
Wayne Middaugh |
Brent Laing |
Craig Savill |
 |
| 2013 |
Coldwater, Coldwater & District Curling Club |
Glenn Howard |
Wayne Middaugh |
Brent Laing |
Craig Savill |
 |
Zawodnicy reprezentujący Ontario 10-krotnie zdobywali tytuł mistrzów Kanady. Pierwszy raz miało to miejsce w 1935. 15 razy sięgali po srebrne medale a 10 razy po brązowe. Biorąc pod uwagę, że przez długi czas nie rozgrywano tie-breaków w korzystniejszym zestawieniu można uwzględnić 18 srebrnych i 11 brązowych medali.