Interleague Minor League Postseason Series


Below is a list of Interleague Minor League Postseason Series since the founding of the National Association of Professional Baseball Leagues in 1902.
Postseason seriesLeaguesYears of existence
New England ChampionshipConnecticut League, New England League1903, 1905–1906
Little World SeriesAmerican Association, International League1904, 1906–1907, 1917, 1920–1931
Iowa State SeriesIowa State League, Three-I League, Western League1905
Dixie ChampionshipSouth Atlantic League, Virginia League1906
Midwest ChampionshipIowa State League, Wisconsin State League1907
Carolina ChampionshipCarolina Association, Eastern Carolina League1909
Dixie ChampionshipSouth Atlantic League, Southern Association1909, 1919
New York versus Pennsylvania SeriesNew York State League, Tri-State League1909
Kansas versus Nebraska SeriesEastern Kansas League, M.I.N.K. League1910
Northern ChampionshipMinnesota–Wisconsin League, Wisconsin–Illinois League1910
Carolina versus Virginia SeriesCarolina Association, Virginia League1911
Class D SeriesBlue Grass League, Kentucky–Illinois–Tennessee League1912
Western ChampionshipAmerican Association, Western League1912
Virginia SeriesAppalachian League, Virginia League1912
Class B Championship SeriesEastern Association, New England League1913, 1914
Michigan State ChampionshipMichigan State League, Southern Michigan Association1913
Minor League ChampionshipAmerican Association, Western League1913, 1916
Minor League ChampionshipAmerican Association, Southern Association, Western League1914
Virginia-North Carolina SeriesNorth Carolina State League, Virginia League1914–1915
Junior World SeriesAmerican Association, Pacific Coast League1919
Dixie SeriesSouthern Association, Texas League1920–1958
Border SeriesTexas–Oklahoma League, Western Association1921
Class B Championship SeriesCentral League, Michigan–Ontario League1921
Class D SeriesSouthwestern League, Western Association1921
Little World Series Tune-upEastern League, International League1922–1925
Class A SeriesWestern League, Southern Association1922
Class B Southern ChampionshipSouth Atlantic League, Virginia League1922–1923
Five-State ChampionshipBlue Ridge League, Eastern Shore League1922–1927
Lone Star SeriesEast Texas League, Texas Association1924, 1926
Class AA SeriesAmerican Association, Pacific Coast League1924
San Francisco-Louisville SeriesAmerican Association, Pacific Coast League1925
Southern ChampionshipSouth Atlantic League, Virginia League1925–1927
Northern ChampionshipThree-I League, Michigan State League1926
Mid-Western ChampionshipThree-I League, Western League1926
Eastern ChampionshipNew York–Penn League, New England League1926
Eastern ChampionshipNew York–Penn League, Eastern League1926, 1930
Class B ChampionshipNew York–Penn League, Virginia League1927
Eastern ChampionshipEastern League, International League1927, 1929
Southern ChampionshipSoutheastern League, South Atlantic League1927–1928, 1930
Texas Class D ChampionshipLone Star League, West Texas League1928
Tri-State SeriesMiddle Atlantic League, Blue Ridge League1928–1929
Eastern SeriesNew England League, Eastern League1929
Midwest ChampionshipCentral League, Three-I League1929–1930
Junior World SeriesAmerican Association, International League1932–1934, 1936–1962, 1970–1971, 1973–1974
Midwest SeriesWestern League, Mississippi Valley League1933
Pan American AssociationMexican League, Texas League1959–1961
Dixie SeriesSouthern League, Texas League1967
World Baseball ChampionshipAmerican Association, International League, Pacific Coast League, Hawaii Islanders, Latin American All-Stars1973
Triple-A World SeriesAmerican Association, International League, Pacific Coast League1983
Triple-A ClassicAmerican Association, International League1988–1991
Triple-A World SeriesInternational League, Pacific Coast League1998–2000
Triple-A Baseball National Championship GameInternational League, Pacific Coast League2006–present