Year	Result
2024	Ancaster (Hamilton) 10, Windsor South Canadian 0 (4 innings)
2023	Ottawa West 12, Glebe (Ottawa) 1 (4 innings)
2022	Ancaster (Hamilton) 14, East Nepean 4
2021	Ontario tournaments not held due to Covid-19 pandemic
2020	International tournament not held due to Covid-19 pandemic
2019	Ottawa West 9, High Park (Toronto) 8
2018	High Park (Toronto) 12, Orleans 1
2017	Port Arthur National (Thunder Bay) 10, South Ottawa 0 (4 innings)
2016	Port Arthur National (Thunder Bay) 9, High Park (Toronto) 4
2015	High Park (Toronto) 13, Oakville 2
2014	High Park (Toronto) 4, East Nepean 0
2013	East Nepean 6, Oakville 1
2012	High Park (Toronto) 12, LaSalle Turtle Club 3
2011	High Park (Toronto) 10, Windsor South Canadian 0 (5 innings)
2010	Windsor South Canadian 5, Fort William National/American 1
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.