| Postseason Series |
Leagues |
Years of Existence |
| New England Championship |
Connecticut League, New England League |
1903, 1905-1906 |
| Little World Series |
American Association, International League |
1904, 1906-1907, 1917, 1920-1931 |
| Iowa State Series |
Iowa State League, Three-I League, Western League |
1905 |
| Dixie Championship |
South Atlantic League, Virginia League |
1906 |
| Midwest Championship |
Iowa State League, Wisconsin State League |
1907 |
| Carolina Championship |
Carolina Association, Eastern Carolina League |
1909 |
| Dixie Championship |
South Atlantic League, Southern Association |
1909, 1919 |
| New York versus Pennsylvania Series |
New York State League, Tri-State League |
1909 |
| Kansas versus Nebraska Series |
Eastern Kansas League, MINK League |
1910 |
| Northern Championship |
Minnesota-Wisconsin League, Wisconsin-Illinois League |
1910 |
| Carolina versus Virginia Series |
Carolina Association, Virginia League |
1911 |
| Class D Series |
Blue Grass League, Kentucky-Illinois-Tennessee League |
1912 |
| Western Championship |
American Association , Western League |
1912 |
| Virginia Series |
Appalachian League, Virginia League |
1912 |
| Class B Championship Series |
Eastern Association, New England League |
1913, 1914 |
| Michigan State Championship |
Michigan State League, Southern Michigan Association |
1913 |
| Minor League Championship |
American Association, Western League |
1913, 1916 |
| Minor League Championship |
American Association, Southern Association, Western League |
1914 |
| Virginia-North Carolina Series |
North Carolina State League, Virginia League |
1914-1915 |
| Junior World Series |
American Association, Pacific Coast League |
1919 |
| Dixie Series |
Southern Association, Texas League |
1920-1958 |
| Border Series |
Texas-Oklahoma League, Western Association |
1921 |
| Class B Championship Series |
Central League, Michigan-Ontario League |
1921 |
| Class D Series |
Southwestern League, Western Association |
1921 |
| Little World Series Tune-up |
Eastern League, International League |
1922-1925 |
| Class A Series |
Western League , Southern Association |
1922 |
| Class B Southern Championship |
South Atlantic League, Virginia League |
1922-1923 |
| Five-State Championship |
Blue Ridge League, Eastern Shore League |
1922-1927 |
| Lone Star Series |
East Texas League, Texas Association |
1924, 1926 |
| Class AA Series |
American Association, Pacific Coast League |
1924 |
| San Francisco-Louisville Series |
American Association, Pacific Coast League |
1925 |
| Southern Championship |
South Atlantic League, Virginia League |
1925-1927 |
| Northern Championship |
Three-I League, Michigan State League |
1926 |
| Mid-Western Championship |
Three-I League, Western League |
1926 |
| Eastern Championship |
New York-Penn League, New England League |
1926 |
| Eastern Championship |
New York-Penn League, Eastern League |
1926, 1930 |
| Class B Championship |
New York-Penn League, Virginia League |
1927 |
| Eastern Championship |
Eastern League, International League |
1927, 1929 |
| Southern Championship |
Southeastern League, South Atlantic League |
1927-1928, 1930 |
| Texas Class D Championship |
Lone Star League, West Texas League |
1928 |
| Tri-State Series |
Middle Atlantic League, Blue Ridge League |
1928-1929 |
| Eastern Series |
New England League, Eastern League |
1929 |
| Midwest Championship |
Central League, Three-I League |
1929-1930 |
| Junior World Series |
American Association, International League |
1932-1934, 1936-1962, 1970-1971, 1973-1974 |
| Midwest Series |
Western League, Mississippi Valley League |
1933 |
| Pan American Association |
Mexican League, Texas League |
1959-1961 |
| Dixie Series |
Southern League, Texas League |
1967 |
| World Baseball Championship |
American Association, International League, Pacific Coast League, Hawaii Islanders (PCL), Latin American All-Stars |
1973 |
| Triple-A World Series |
American Association, International League, Pacific Coast League |
1983 |
| Triple-A Classic |
American Association, International League |
1988-1991 |
| Triple-A World Series |
International League, Pacific Coast League |
1998-2000 |
| Bricktown Showdown |
International League, Pacific Coast League |
2006-present |