| Year | Result |
| 2009 | Turtle Club (LaSalle) 5, High Park (Toronto) 3 |
| 2008 | Timmins LaRonde 13, East Nepean 5 |
| 2007 | Brockville 5, East Nepean 4 |
| 2006 | East Nepean 9, Windsor South Canadian 5 |
| 2005 | High Park (Toronto) 5, Port Arthur National 1 (7 innings) |
| 2004 | East Nepean 3, High Park (Toronto) 2 |
| 2003 | High Park (Toronto) 7, Gloucester (Ottawa) 2 |
| 2002 | Gloucester (Ottawa) 14, Brockville Legion 0 (4 innings) |
| 2001 | High Park (Toronto) 3, Kanata 0 |
| 2000 | High Park (Toronto) 2, Timmins LaRonde 0 |
| 1999 | Turtle Club (LaSalle) 11, Kanata 3 |
| 1998 | Stoney Creek Optimists 8, East Nepean 2 |
| 1997 | High Park (Toronto) 4, Pinecrest (Ottawa) 2 |
| 1996 | High Park (Toronto) 1, East Nepean 0 |
| 1995 | High Park (Toronto) 7, East Nepean 3 |
| 1994 | High Park (Toronto) 15, Orleans 2 |
| 1993 | Orleans 6, Turtle Club (LaSalle) 2 |
| 1992 | Erindale (Mississauga) 3, Orleans 1 |
| 1991 | Stoney Creek Optimists 2, Pinecrest (Ottawa) 1 |
| 1990 | Orleans 4, Pinecrest (Ottawa) 1 |
| 1989 | High Park (Toronto) 5, East Nepean 0 |
| 1988 | Pinecrest (Ottawa) 3, North Gloucester (Ottawa) 0 |
| 1987 | Pinecrest (Ottawa) 4, Windsor South 0 |
| 1986 | Pinecrest (Ottawa) 4, Sandwich East (Windsor) 0 |
| 1985 | Glanbrook (Binbrook) 6, Pinecrest (Ottawa) 4 |
| 1984 | Turtle Club (LaSalle) 6, Stoney Creek Optimists 2 |
| 1983 | Fort William National (Thunder Bay) 4, Turtle Club (LaSalle) 3 |
| 1982 | Rouyn Rotary (Quebec) 6, Turtle Club (LaSalle) 0 |
| 1981 | Rouyn Rotary (Quebec) 3, Turtle Club (LaSalle) 0 |
| 1980 | Brockville Legion 4, Kirkland Lake 0 |
| 1979 | Fort William National (Thunder Bay) 9, Windsor West 5 |
| 1978 | Parkdale Lions (Toronto) 3, Westfort International (Thunder Bay) 2 |
| 1977 | Windsor North I.O.O.G. 8, Westfort International (Thunder Bay) 7 |
| 1976 | Parkdale Lions (Toronto) 12, Pinecrest (Ottawa) 2 |
| 1975 | Port Arthur Continental (Thunder Bay) 5, Canterbury (Ottawa) 4 (8 innings) |
| 1974 | Brockville Legion 8, Stoney Creek Optimists 5 |
| 1973 | Brockville Legion 6, Fort William National (Thunder Bay) 2 |
| 1972 | Windsor South Canadians 7, Stoney Creek Optimists 3 |
| 1971 | Brockville Legion 8, Parkdale Lions (Toronto) 1 |
| 1970 | Windsor West 5, Fort William National (Thunder Bay) 0 |
| 1969 | Galt National 2, Canterbury (Ottawa) 0 |
| 1968 | Windsor East 7, Fort William National 1 |
| 1967 | Windsor East 3, Parkdale Lions (Toronto) 0 |
| 1966 | Windsor Central 9, Kirkland Lake 4 |
| 1965 | Stoney Creek Optimists 2, Overbrook (Ottawa) 0 |
| 1964 | Stoney Creek Optimists 12, Fort William National 1 |
| 1963 | Fort William International 2, Galt American 1 |
| 1962 | Stoney Creek Optimists 6, Fort William American 1 |
| 1961 | Stoney Creek Optimists 6, Glebe (Ottawa) 0 |
| 1960 | Parkdale Lions (Toronto) 2, Brockville Legion 1 |
| 1959 | Brockville Legion 6, Parkdale Lions (Toronto) 4 |
| 1958 | Glebe (Ottawa) 1, Parkdale Lions (Toronto) 0 |
| 1957 | Parkdale Lions (Toronto) d. Brockville Legion |
NOTE: The city of Thunder Bay was created on January 1, 1970 by the amalgamation of the cities of Fort William and Port Arthur along with two nearby townships.