Big 9 Baseball Championships 
2020-21 Mankato West   2021-22 Mankato West   2022-23 Mayo
2017-18 Owatonna   2018-19 Century   2019-20 Cancelled due to Covid
2014-15 Northfield   2015-16 Northfield   2016-17 Red Wing, Century
2011-12 John Marshall   2012-13 Faribault, Winona   2013-14 John Marshall, Owatonna
2008-09 John Marshall   2009-10 Owatonna   2010-11 John Marshall
2005-06 John Marshall   2006-07 Century   2007-08 John Marshall
2002-03 Mankato West   2003-04 Century, Mayo   2004-05 Mayo
1999-00 Mayo   2000-01 Century   2001-02 Century
1996-97 John Marshall, Mayo   1997-98 Mayo   1998-99 Mayo
1993-94 Mankato West   1994-95 Mankato West   1995-96 Austin
1990-91 Mayo   1991-92 Mayo   1992-93 Faribault, Mankato West, Winona
1987-88 Owatonna   1988-89 Mankato East   1989-90 Austin
1984-85 Austin   1985-86 Mayo   1986-87 Owatonna
1981-82 Owatonna, Winona   1982-83 Winona   1983-84 John Marshall, Mayo
1978-79 Austin   1979-80 Red Wing   1980-81 Austin
1975-76 Austin, John Marshall   1976-77 Owatonna   1977-78 Albert Lea
1972-73 Mankato   1973-74 Albert Lea, Austin, Winona   1974-75 Austin, John Marshall
1969-70 Austin, Red Wing   1970-71 Austin, Winona   1971-72 Austin
1966-67 Austin, Mankato, Winona   1967-68 Albert Lea   1968-69 Austin
1963-64 Faribault, Rochester   1964-65 Rochester   1965-66 John Marshall
1960-61 Austin, Rochester, Winona   1961-62 Austin   1962-63 Austin
1957-58 Mankato, Austin   1958-59 Austin   1959-60 Austin
1954-55 Austin, Rochester   1955-56 Mankato, Owatonna   1956-57 Mankato, Austin
1951-52 Austin   1952-53 Winona   1953-54 Austin
1948-49 Mankato   1949-50 Winona   1950-51 Austin
1945-46 Austin   1946-47 Austin   1947-48 Austin, Mankato, Northfield
1942-43 Austin   1943-44 Austin   1944-45 Austin