| Jaar | Baan | Stad | Winnaar | Score | Info |
| 1904 | Royal Montreal Golf Club | L'Île-Bizard | John H. Oke | 156 | +16 | 36-holes |
| 1905 | Toronto Golf Club | Mississauga | George Cumming | 148 | +8 | 36-holes |
| 1906 | Royal Ottawa Golf Club | Aylmer | Charles Murray | 170 | +26 | 36-holes |
| 1907 | Lambton Golf & Country Club | Toronto | Percy Barrett | 306 | +22 | |
| 1908 | Royal Montreal Golf Club | L'Île-Bizard | Albert Murray | 300 | +20 | |
| 1909 | Toronto Golf Club | Mississauga | Karl Keffer | 309 | +21 | |
| 1910 | Lambton Golf & Country Club | Toronto | Daniel Kenny | 303 | +19 | |
| 1911 | Royal Ottawa Golf Club | Aylmer | Charles Murray | 314 | +26 | |
| 1912 | Rosedale Golf Club | Toronto | George Sargent | 299 | +19 | |
| 1913 | Royal Montreal Golf Club | L'Île-Bizard | Albert Murray | 295 | +15 | |
| 1914 | Toronto Golf Club | Mississauga | Karl Keffer | 300 | +12 | |
| 1915 | Geannuleerd wegens de Eerste Wereldoorlog |
| 1916 |
| 1917 |
| 1918 |
| 1919 | Hamilton Golf & Country Club | Ancaster | James Douglas Edgar | 278 | -2 | |
| 1920 | Rivermead Golf Club | Aylmer | James Douglas Edgar po | 298 | +10 | |
| 1921 | Toronto Golf Club | Mississauga | William Trovinger | 293 | +5 | |
| 1922 | Mount Bruno Country Club | Saint-Bruno | Al Watrous | 303 | +19 | |
| 1923 | Lakeview House Golf Course | Toronto | Clarence Hackney | 295 | +7 | |
| 1924 | Mount Bruno Country Club | Saint-Bruno | Leo Diegel | 285 | +1 | |
| 1925 | Lambton Golf & Country Club | Toronto | Leo Diegel | 295 | +11 | |
| 1926 | Royal Montreal Golf Club | L'Île-Bizard | Macdonald Smith | 283 | +3 | |
| 1927 | Toronto Golf Club | Mississauga | Tommy Armour | 288 | par | |
| 1928 | Rosedale Golf Club | Toronto | Leo Diegel | 282 | -2 | |
| 1929 | Kanawaki Golf Club | Kahnawake | Leo Diegel | 274 | -6 | |
| 1930 | Hamilton Golf & Country Club | Ancaster | Tommy Armour po | 273 | -7 | |
| 1931 | Mississaugua Golf & Country Club | Mississauga | Walter Hagen po | 292 | +4 | |
| 1932 | Ottawa Hunt & Golf Club | Ottawa | Harry Cooper | 290 | +2 | |
| 1933 | St. Georges Golf & Country Club | Toronto | Joe Kirkwood Sr. | 282 | -2 | |
| 1934 | Lakeview House Golf Course | Toronto | Tommy Armour | 287 | -1 | |
| 1935 | Summerlea Golf Club | Montréal | Gene Kunes | 280 | -8 | |
| 1936 | St. Andrews Golf Club | Toronto | Lawson Little | 271 | -17 | |
| 1937 | St. Andrews Golf Club | Toronto | Harry Cooper | 285 | -3 | |
| 1938 | Mississaugua Golf & Country Club | Mississauga | Sam Snead po | 277 | -3 | |
| 1939 | The Riverside Country Club | Saint John | Harold "Jug" McSpaden | 282 | -6 | |
| 1940 | Scarboro Golf & Country Club | Scarborough | Sam Snead po | 281 | -3 | |
| 1941 | Lambton Golf & Country Club | Toronto | Sam Snead | 274 | -10 | |
| 1942 | Mississaugua Golf & Country Club | Mississauga | Craig Wood | 275 | -5 | |
| 1943 | Geannuleerd wegens de Tweede Wereldoorlog |
| 1944 |
| 1945 | Thornhill Golf & Country Club | Thornhill | Byron Nelson | 280 | -8 | |
| 1946 | Beaconsfield Golf Club | Montréal | George Fazio po | 278 | -6 | |
| 1947 | Scarboro Golf & Country Club | Scarborough | Bobby Locke | 268 | -16 | |
| 1948 | Shaughnessy Golf & Country Club | Vancouver | Charles Congdon | 280 | -4 | |
| 1949 | St. Georges Golf & Country Club | Toronto | E.J. "Dutch" Harrison | 271 | -13 | |
| 1950 | Royal Montreal Golf Club | L'Île-Bizard | Jim Ferrier | 271 | -9 | |
| 1951 | Mississaugua Golf & Country Club | Mississauga | Jim Ferrier | 273 | -7 | |
| 1952 | St. Charles Country Club | Winnipeg | Johnny Palmer | 263 | -21 | |
| 1953 | Scarboro Golf & Country Club | Scarborough | Dave Douglas | 273 | -11 | |
| 1954 | Point Grey Golf & Country Club | Vancouver | Pat Fletcher | 280 | -8 | |
| 1955 | Weston Golf & Country Club | Toronto | Arnold Palmer | 265 | -23 | |
| 1956 | Beaconsfield Golf Club | Montréal | Doug Sanders | 273 | -11 | Won het toernooi als een amateur |
| 1957 | Westmount Golf & Country Club | Kitchener | George Bayer | 271 | -13 | |
| 1958 | Royal Mayfair Golf Club | Edmonton | Wes Ellis | 267 | -13 | |
| 1959 | Islesmere Golf Club | Montréal | Doug Ford | 276 | -12 | |
| 1960 | St. Georges Golf & Country Club | Toronto | Art Wall jr. | 269 | -15 | |
| 1961 | Niakwa Country Club | Winnipeg | Jacky Cupit | 270 | -10 | |
| 1962 | Le Club Laval-Sur-Le-Lac | Laval | Ted Kroll | 278 | -10 | |
| 1963 | Scarboro Golf & Country Club | Scarborough | Doug Ford | 280 | -4 | |
| 1964 | Pinegrove Country Club | Saint-Jean-sur-Richelieu | Kel Nagle | 277 | -11 | |
| 1965 | Mississaugua Golf & Country Club | Mississauga | Gene Littler | 273 | -7 | |
| 1966 | Shaughnessy Golf & Country Club | Vancouver | Don Massengale | 280 | -4 | |
| 1967 | Royal Montreal Golf Club | L'Île-Bizard | Billy Casper po | 279 | -5 | |
| 1968 | St. Georges Golf & Country Club | Toronto | Bob Charles | 274 | -10 | |
| 1969 | Pinegrove Country Club | Saint-Jean-sur-Richelieu | Tommy Aaron po | 275 | -13 | |
| 1970 | London Hunt & Country Club | London | Kermit Zarley | 279 | -9 | |
| 1971 | Richelieu Valley Golf Club | Sainte-Julie | Lee Trevino | 275 | -9 | Triple Crown Golf-winnaar |
| 1972 | Cherry Hill Club | Ridgeway | Gay Brewer | 275 | -9 | |
| 1973 | Richelieu Valley Golf Club | Sainte-Julie | Tom Weiskopf | 278 | -6 | |
| 1974 | Mississaugua Golf & Country Club | Mississauga | Bobby Nichols | 270 | -10 | |
| 1975 | Royal Montreal Golf Club | L'Île-Bizard | Tom Weiskopf po | 274 | -6 | |
| 1976 | Essex Golf & Country Club | Windsor | Jerry Pate | 267 | -13 | |
| 1977 | Glen Abbey Golf Club | Oakville | Lee Trevino | 280 | -8 | |
| 1978 | Glen Abbey Golf Club | Oakville | Bruce Lietzke | 283 | -1 | |
| 1979 | Glen Abbey Golf Club | Oakville | Lee Trevino | 281 | -7 | |
| 1980 | Royal Montreal Golf Club | L'Île-Bizard | Bob Gilder | 274 | -6 | |
| 1981 | Glen Abbey Golf Club | Oakville | Peter Oosterhuis | 280 | -4 | |
| 1982 | Glen Abbey Golf Club | Oakville | Bruce Lietzke | 277 | -11 | |
| 1983 | Glen Abbey Golf Club | Oakville | John Cook po | 277 | -11 | |
| 1984 | Glen Abbey Golf Club | Oakville | Greg Norman | 278 | -10 | |
| 1985 | Glen Abbey Golf Club | Oakville | Curtis Strange | 279 | -9 | |
| 1986 | Glen Abbey Golf Club | Oakville | Bob Murphy | 280 | -8 | |
| 1987 | Glen Abbey Golf Club | Oakville | Curtis Strange | 276 | -12 | |
| 1988 | Glen Abbey Golf Club | Oakville | Ken Green | 275 | -13 | |
| 1989 | Glen Abbey Golf Club | Oakville | Steve Jones | 271 | -17 | |
| 1990 | Glen Abbey Golf Club | Oakville | Wayne Levi | 278 | -10 | |
| 1991 | Glen Abbey Golf Club | Oakville | Nick Price | 273 | -15 | |
| 1992 | Glen Abbey Golf Club | Oakville | Greg Norman po | 280 | -8 | |
| 1993 | Glen Abbey Golf Club | Oakville | David Frost | 279 | -9 | |
| 1994 | Glen Abbey Golf Club | Oakville | Nick Price | 275 | –13 | |
| 1995 | Glen Abbey Golf Club | Oakville | Mark O'Meara po | 274 | -14 | |
| 1996 | Glen Abbey Golf Club | Oakville | Dudley Hart | 202 | -14 | Afgewerkt in 3 ronden |
| 1997 | Royal Montreal Golf Club | L'Île-Bizard | Steve Jones | 275 | -5 | |
| 1998 | Glen Abbey Golf Club | Oakville | Billy Andrade po | 275 | -13 | |
| 1999 | Glen Abbey Golf Club | Oakville | Hal Sutton | 275 | -13 | |
| 2000 | Glen Abbey Golf Club | Oakville | Tiger Woods | 266 | -22 | Triple Crown Golf-winnaar |
| 2001 | Royal Montreal Golf Club | L'Île-Bizard | Scott Verplank | 266 | -14 | |
| 2002 | Angus Glen Golf Club - South Course | Markham | John Rollins po | 272 | -16 | |
| 2003 | Hamilton Golf & Country Club | Ancaster | Bob Tway po | 272 | -8 | |
| 2004 | Glen Abbey Golf Club | Oakville | Vijay Singh po | 275 | -9 | |
| 2005 | Shaughnessy Golf & Country Club | Vancouver | Mark Calcavecchia | 275 | –5 | |
| 2006 | Hamilton Golf & Country Club | Ancaster | Jim Furyk | 266 | -14 | |
| 2007 | Angus Glen Golf Club - North Course | Markham | Jim Furyk | 268 | -16 | |
| 2008 | Glen Abbey Golf Club | Oakville | Chez Reavie | 267 | -17 | |
| 2009 | Glen Abbey Golf Club | Oakville | Nathan Green po | 270 | -18 | |
| 2010 | St. Georges Golf & Country Club | Toronto | Carl Pettersson | 266 | -14 | |
| 2011 | Shaughnessy Golf & Country Club | Vancouver | Sean O'Hair po | 276 | -4 | |
| 2012 | Hamilton Golf & Country Club | Ancaster | Scott Piercy | 263 | -17 | |
| 2013 | Glen Abbey Golf Club | Oakville | Brandt Snedeker | 272 | -16 | |
| 2014 | Royal Montreal Golf Club | L'Île-Bizard | Tim Clark | 263 | -17 | |