Interleague Minor League Postseason Series

Below is a list of Interleague Minor League
Minor league
Minor leagues are professional sports leagues which are not regarded as the premier leagues in those sports. Minor league teams tend to play in smaller, less elaborate venues, often competing in smaller cities. This term is used in North America with regard to several organizations competing in...

Postseason Series since the founding of the National Association of Professional Baseball Leagues in 1902.

Interleague Minor League Postseason Series

Postseason Series	Leagues	Years of Existence
New England Championship	Connecticut League Connecticut League The Connecticut League, also known as the Connecticut State League is a now defunct minor baseball league based in Connecticut. The league began as off-shoot of the original Connecticut State League in 1902 as a Class D league with teams in eight cities... , New England League New England League The New England League was a mid-level league in American minor league baseball that played sporadically in five of the six New England states between 1886 and 1949. After 1901, it existed in the shadow of two Major League Baseball clubs in Boston and alongside stronger, higher-classification...	1903, 1905-1906
Little World Series	American Association American Association (20th century) The American Association was a minor league baseball league at the Triple-A level of baseball in the United States from to and to . Together with the International League, it contested the Junior World Series which determined the championship team in minor league baseball, at least for the... , International League International League The International League is a minor league baseball league that operates in the eastern United States. Like the Pacific Coast League and the Mexican League, it plays at the Triple-A level, which is one step below Major League Baseball. It was so named because it had teams in both the United States...	1904, 1906-1907, 1917, 1920-1931
Iowa State Series	Iowa State League Iowa State League The Iowa State League began in 1904 as an eight-team Class D minor league in and around Iowa, United States. The league played four seasons and ceased operations following the 1907 season.-List of teams :... , Three-I League, Western League Western League (defunct minor league) The Western League is a name given to several circuits in American minor league baseball. Its earliest progenitor, which existed from 1885 to 1899, was the predecessor of the American League...	1905
Dixie Championship	South Atlantic League South Atlantic League The South Atlantic League is a minor league baseball league based chiefly in the Southeastern United States, with the exception of three teams in the Mid-Atlantic States... , Virginia League Virginia League The Virginia League was a minor league baseball affiliation which operated in Virginia and North Carolina from 1906 to 1928. It was classified as a "C" league from 1906 to 1919 and as a "B" league from 1920 to 1928....	1906
Midwest Championship	Iowa State League Iowa State League The Iowa State League began in 1904 as an eight-team Class D minor league in and around Iowa, United States. The league played four seasons and ceased operations following the 1907 season.-List of teams :... , Wisconsin State League Wisconsin State League There was a class D league called the Wisconsin State League which began in 1905. In 1908 it changed its name to the Wisconsin-Illinois League. Another Wisconsin State League began in 1940, shut down for World War II from 1943 through 1945, then operated from 1946 through 1953...	1907
Carolina Championship	Carolina Association, Eastern Carolina League Eastern Carolina League The Eastern Carolina League was a minor league baseball affiliation which operated in the Eastern part of North Carolina. The league had two distinct periods of operation: 1908-1910 and a revival of the league in 1928-1929. It was classified as a "D" league....	1909
Dixie Championship	South Atlantic League South Atlantic League The South Atlantic League is a minor league baseball league based chiefly in the Southeastern United States, with the exception of three teams in the Mid-Atlantic States... , Southern Association Southern Association The Southern Association was a higher-level minor league in American organized baseball from 1901 through 1961. For most of its existence, the Southern Association was two steps below the Major Leagues; it was graded Class A , Class A1 and Class AA...	1909, 1919
New York versus Pennsylvania Series	New York State League New York State League This article refers to the modern New York State League. For the original incarnations of the New York State League see New York State League ... , Tri-State League	1909
Kansas versus Nebraska Series	Eastern Kansas League Eastern Kansas League The Eastern Kansas League, more commonly known around the state as The EKL, is a league of member schools of the Kansas State High School Activities Association... , MINK League	1910
Northern Championship	Minnesota-Wisconsin League Minnesota-Wisconsin League The Minnesota-Wisconsin League was a professional minor baseball league that existed from 1909 to 1912. It was a Class-C league from 1909 to 1911 and a Class-D league in 1912... , Wisconsin-Illinois League	1910
Carolina versus Virginia Series	Carolina Association, Virginia League Virginia League The Virginia League was a minor league baseball affiliation which operated in Virginia and North Carolina from 1906 to 1928. It was classified as a "C" league from 1906 to 1919 and as a "B" league from 1920 to 1928....	1911
Class D Series	Blue Grass League Blue Grass League The Blue Grass League was a minor baseball league that existed in the early 1900s. There were two incarnations of the league, one that ran from 1908 to 1912 and one that existed from 1922 to 1924... , Kentucky-Illinois-Tennessee League Kentucky-Illinois-Tennessee League The Kentucky-Illinois-Tennessee League was a Class D minor league baseball circuit that went through six different lives. The first KITTY League played from 1903 through 1906. The next one ran from 1910 through 1914. The third try played a single season . The circuit was revived in 1922 and lasted...	1912
Western Championship	American Association American Association (20th century) The American Association was a minor league baseball league at the Triple-A level of baseball in the United States from to and to . Together with the International League, it contested the Junior World Series which determined the championship team in minor league baseball, at least for the... , Western League Western League (defunct minor league) The Western League is a name given to several circuits in American minor league baseball. Its earliest progenitor, which existed from 1885 to 1899, was the predecessor of the American League...	1912
Virginia Series	Appalachian League Appalachian League The Appalachian League is a Rookie-class minor league that began play in 1937 with one year of inactivity in 1956. From 1937 to 1962, it was a Class D League. Teams are located in the Appalachian regions of Virginia, North Carolina, West Virginia and Tennessee... , Virginia League Virginia League The Virginia League was a minor league baseball affiliation which operated in Virginia and North Carolina from 1906 to 1928. It was classified as a "C" league from 1906 to 1919 and as a "B" league from 1920 to 1928....	1912
Class B Championship Series	Eastern Association Eastern Association The Eastern Association of counties was a Parliamentarian or 'Roundhead' army during the English Civil War. It was formed from a number of pro-Parliamentary militias in the east of England in 1642, including a troop of cavalry led by Oliver Cromwell... , New England League New England League The New England League was a mid-level league in American minor league baseball that played sporadically in five of the six New England states between 1886 and 1949. After 1901, it existed in the shadow of two Major League Baseball clubs in Boston and alongside stronger, higher-classification...	1913, 1914
Michigan State Championship	Michigan State League Michigan State League Michigan State League was the name of six American professional baseball leagues. Five of them operated only one or two baseball seasons and the other four seasons... , Southern Michigan Association	1913
Minor League Championship	American Association American Association (20th century) The American Association was a minor league baseball league at the Triple-A level of baseball in the United States from to and to . Together with the International League, it contested the Junior World Series which determined the championship team in minor league baseball, at least for the... , Western League Western League (defunct minor league) The Western League is a name given to several circuits in American minor league baseball. Its earliest progenitor, which existed from 1885 to 1899, was the predecessor of the American League...	1913, 1916
Minor League Championship	American Association American Association (20th century) The American Association was a minor league baseball league at the Triple-A level of baseball in the United States from to and to . Together with the International League, it contested the Junior World Series which determined the championship team in minor league baseball, at least for the... , Southern Association Southern Association The Southern Association was a higher-level minor league in American organized baseball from 1901 through 1961. For most of its existence, the Southern Association was two steps below the Major Leagues; it was graded Class A , Class A1 and Class AA... , Western League Western League (defunct minor league) The Western League is a name given to several circuits in American minor league baseball. Its earliest progenitor, which existed from 1885 to 1899, was the predecessor of the American League...	1914
Virginia-North Carolina Series	North Carolina State League North Carolina State League The North Carolina State League was a "Class D" league in Minor League Baseball. The original version of the league existed from 1913-1917 as the successor to the Carolina Association... , Virginia League Virginia League The Virginia League was a minor league baseball affiliation which operated in Virginia and North Carolina from 1906 to 1928. It was classified as a "C" league from 1906 to 1919 and as a "B" league from 1920 to 1928....	1914-1915
Junior World Series Junior World Series The Junior World Series was the name given to a postseason series between champions of two of the three high-minor baseball leagues, modeled on the World Series of Major League Baseball...	American Association American Association (20th century) The American Association was a minor league baseball league at the Triple-A level of baseball in the United States from to and to . Together with the International League, it contested the Junior World Series which determined the championship team in minor league baseball, at least for the... , Pacific Coast League Pacific Coast League The Pacific Coast League is a minor-league baseball league operating in the Western, Midwestern and Southeastern United States. Along with the International League and the Mexican League, it is one of three leagues playing at the Triple-A level, which is one step below Major League Baseball.The...	1919
Dixie Series Dixie Series The Dixie Series was an Interleague Minor League Postseason Series pitting the playoff champions of the Southern Association and the Texas League in a best-of-seven matchup from 1920 to 1958. It was revived for one year in 1967, pitting the Southern League champ against the Texas League champ...	Southern Association Southern Association The Southern Association was a higher-level minor league in American organized baseball from 1901 through 1961. For most of its existence, the Southern Association was two steps below the Major Leagues; it was graded Class A , Class A1 and Class AA... , Texas League Texas League The Texas League is a minor league baseball league which operates in the South Central United States. It is classified a Double-A league. The league was founded in 1888 and ran through 1892...	1920-1958
Border Series	Texas-Oklahoma League Texas-Oklahoma League The Texas-Oklahoma League refers the name of two Minor league baseball Class-D circuits that operated between and . The first began in 1911 and finished in 1914, while the second did not even last that long, being active only in 1921 and 1922.... , Western Association Western Association The Western Association was the name of five different leagues in American minor league baseball during the 19th and 20th centuries.The oldest league, originally established as the Northwestern League in 1883, was refounded as the Western Association on October 28, 1887...	1921
Class B Championship Series	Central League, Michigan-Ontario League Michigan-Ontario League Michigan State League was the name of an American professional baseball league. It operated seven full seasons and part of an eighth from 1919 to 1926....	1921
Class D Series	Southwestern League Southwestern League The Southwestern League was the name of three former minor league baseball leagues that operated in the Southwestern United States. The first league, also known as the Oklahoma State League, was in operation for the 1904 season. The second league operated from 1921 to 1926... , Western Association Western Association The Western Association was the name of five different leagues in American minor league baseball during the 19th and 20th centuries.The oldest league, originally established as the Northwestern League in 1883, was refounded as the Western Association on October 28, 1887...	1921
Little World Series Tune-up	Eastern League, International League International League The International League is a minor league baseball league that operates in the eastern United States. Like the Pacific Coast League and the Mexican League, it plays at the Triple-A level, which is one step below Major League Baseball. It was so named because it had teams in both the United States...	1922-1925
Class A Series	Western League Western League (defunct minor league) The Western League is a name given to several circuits in American minor league baseball. Its earliest progenitor, which existed from 1885 to 1899, was the predecessor of the American League... , Southern Association Southern Association The Southern Association was a higher-level minor league in American organized baseball from 1901 through 1961. For most of its existence, the Southern Association was two steps below the Major Leagues; it was graded Class A , Class A1 and Class AA...	1922
Class B Southern Championship	South Atlantic League South Atlantic League The South Atlantic League is a minor league baseball league based chiefly in the Southeastern United States, with the exception of three teams in the Mid-Atlantic States... , Virginia League Virginia League The Virginia League was a minor league baseball affiliation which operated in Virginia and North Carolina from 1906 to 1928. It was classified as a "C" league from 1906 to 1919 and as a "B" league from 1920 to 1928....	1922-1923
Five-State Championship	Blue Ridge League Blue Ridge League The Blue Ridge League was a minor league baseball organization that operated for the better part of sixteen years, from 1915 through 1918, and 1920 to 1930.... , Eastern Shore League	1922-1927
Lone Star Series Lone Star Series The Lone Star Series is an annual Major League Baseball contest featuring Texas' two major league franchises, the Houston Astros of the National League and the Texas Rangers of the American League. It is an outgrowth of the "natural rivalry" established by MLB as part of interleague play.The...	East Texas League East Texas League The East Texas League was a Texas-based league in minor league baseball that existed on-and-off from 1916 to 1950.-1916:In 1916, the first East Texas League began play. A Class-D league, it folded on July 19 of that season. The "league champions," by default, were the Palestine Athletics and Lufkin... , Texas Association	1924, 1926
Class AA Series	American Association American Association (20th century) The American Association was a minor league baseball league at the Triple-A level of baseball in the United States from to and to . Together with the International League, it contested the Junior World Series which determined the championship team in minor league baseball, at least for the... , Pacific Coast League Pacific Coast League The Pacific Coast League is a minor-league baseball league operating in the Western, Midwestern and Southeastern United States. Along with the International League and the Mexican League, it is one of three leagues playing at the Triple-A level, which is one step below Major League Baseball.The...	1924
San Francisco-Louisville Series	American Association American Association (20th century) The American Association was a minor league baseball league at the Triple-A level of baseball in the United States from to and to . Together with the International League, it contested the Junior World Series which determined the championship team in minor league baseball, at least for the... , Pacific Coast League Pacific Coast League The Pacific Coast League is a minor-league baseball league operating in the Western, Midwestern and Southeastern United States. Along with the International League and the Mexican League, it is one of three leagues playing at the Triple-A level, which is one step below Major League Baseball.The...	1925
Southern Championship	South Atlantic League South Atlantic League The South Atlantic League is a minor league baseball league based chiefly in the Southeastern United States, with the exception of three teams in the Mid-Atlantic States... , Virginia League Virginia League The Virginia League was a minor league baseball affiliation which operated in Virginia and North Carolina from 1906 to 1928. It was classified as a "C" league from 1906 to 1919 and as a "B" league from 1920 to 1928....	1925-1927
Northern Championship	Three-I League, Michigan State League Michigan State League Michigan State League was the name of six American professional baseball leagues. Five of them operated only one or two baseball seasons and the other four seasons...	1926
Mid-Western Championship	Three-I League, Western League Western League (defunct minor league) The Western League is a name given to several circuits in American minor league baseball. Its earliest progenitor, which existed from 1885 to 1899, was the predecessor of the American League...	1926
Eastern Championship	New York-Penn League, New England League New England League The New England League was a mid-level league in American minor league baseball that played sporadically in five of the six New England states between 1886 and 1949. After 1901, it existed in the shadow of two Major League Baseball clubs in Boston and alongside stronger, higher-classification...	1926
Eastern Championship	New York-Penn League, Eastern League	1926, 1930
Class B Championship	New York-Penn League, Virginia League Virginia League The Virginia League was a minor league baseball affiliation which operated in Virginia and North Carolina from 1906 to 1928. It was classified as a "C" league from 1906 to 1919 and as a "B" league from 1920 to 1928....	1927
Eastern Championship	Eastern League, International League International League The International League is a minor league baseball league that operates in the eastern United States. Like the Pacific Coast League and the Mexican League, it plays at the Triple-A level, which is one step below Major League Baseball. It was so named because it had teams in both the United States...	1927, 1929
Southern Championship	Southeastern League Southeastern League The Southeastern League was the name of three baseball circuits in minor league baseball league which operated in the Southeastern and South Central United States... , South Atlantic League South Atlantic League The South Atlantic League is a minor league baseball league based chiefly in the Southeastern United States, with the exception of three teams in the Mid-Atlantic States...	1927-1928, 1930
Texas Class D Championship	Lone Star League Lone Star League The Lone Star League was the name of three American minor professional baseball leagues located in the state of Texas during the 20th century. The leagues operated from 1927–1929 , 1947–1948 and 1977 .... , West Texas League West Texas League The West Texas League was a class-D minor league baseball league that existed from 1920 to 1922 and from 1928 to 1929.-1920-1922:The following teams played in 1920:Abilene EaglesRanger NitrosMineral Wells ResortersCisco Scouts...	1928
Tri-State Series	Middle Atlantic League Middle Atlantic League The Middle Atlantic League was a lower-level circuit in American minor league baseball that played during the second quarter of the 20th century.-History:... , Blue Ridge League Blue Ridge League The Blue Ridge League was a minor league baseball organization that operated for the better part of sixteen years, from 1915 through 1918, and 1920 to 1930....	1928-1929
Eastern Series	New England League New England League The New England League was a mid-level league in American minor league baseball that played sporadically in five of the six New England states between 1886 and 1949. After 1901, it existed in the shadow of two Major League Baseball clubs in Boston and alongside stronger, higher-classification... , Eastern League	1929
Midwest Championship	Central League Central League The or is one the two professional baseball leagues that constitute Nippon Professional Baseball in Japan. The winner of the league championship plays against the winner of the Pacific League in the annual Japan Series. It currently consists of six teams from around the country,The Central League... , Three-I League	1929-1930
Junior World Series Junior World Series The Junior World Series was the name given to a postseason series between champions of two of the three high-minor baseball leagues, modeled on the World Series of Major League Baseball...	American Association American Association (20th century) The American Association was a minor league baseball league at the Triple-A level of baseball in the United States from to and to . Together with the International League, it contested the Junior World Series which determined the championship team in minor league baseball, at least for the... , International League International League The International League is a minor league baseball league that operates in the eastern United States. Like the Pacific Coast League and the Mexican League, it plays at the Triple-A level, which is one step below Major League Baseball. It was so named because it had teams in both the United States...	1932-1934, 1936-1962, 1970-1971, 1973-1974
Midwest Series	Western League Western League (defunct minor league) The Western League is a name given to several circuits in American minor league baseball. Its earliest progenitor, which existed from 1885 to 1899, was the predecessor of the American League... , Mississippi Valley League Mississippi Valley League The Mississippi Valley League was a Class-D minor baseball league from 1922 to 1932, and a Class-B league in 1933.The league began play in 1922 with six teams: the Cedar Rapids Bunnies, the Marshalltown Ansons, the Rock Island Islanders, the Waterloo Hawks, the Ottumwa Cardinals and the Dubuque...	1933
Pan American Association	Mexican League, Texas League Texas League The Texas League is a minor league baseball league which operates in the South Central United States. It is classified a Double-A league. The league was founded in 1888 and ran through 1892...	1959-1961
Dixie Series Dixie Series The Dixie Series was an Interleague Minor League Postseason Series pitting the playoff champions of the Southern Association and the Texas League in a best-of-seven matchup from 1920 to 1958. It was revived for one year in 1967, pitting the Southern League champ against the Texas League champ...	Southern League Southern League (baseball) The Southern League is a minor league baseball league which operates in the Southern United States. It is classified a Double-A league. The original league was formed in , and shut down in . A new league, the Southern Association, was formed in , consisting of twelve teams... , Texas League Texas League The Texas League is a minor league baseball league which operates in the South Central United States. It is classified a Double-A league. The league was founded in 1888 and ran through 1892...	1967
World Baseball Championship	American Association American Association (20th century) The American Association was a minor league baseball league at the Triple-A level of baseball in the United States from to and to . Together with the International League, it contested the Junior World Series which determined the championship team in minor league baseball, at least for the... , International League International League The International League is a minor league baseball league that operates in the eastern United States. Like the Pacific Coast League and the Mexican League, it plays at the Triple-A level, which is one step below Major League Baseball. It was so named because it had teams in both the United States... , Pacific Coast League Pacific Coast League The Pacific Coast League is a minor-league baseball league operating in the Western, Midwestern and Southeastern United States. Along with the International League and the Mexican League, it is one of three leagues playing at the Triple-A level, which is one step below Major League Baseball.The... , Hawaii Islanders Hawaii Islanders The Hawaii Islanders were a AAA minor league baseball team, based in Honolulu, Hawaii, that played in the Pacific Coast League from 1961 through 1987. The Islanders were originally an affiliate of the Kansas City Athletics. They played their home games at Honolulu Stadium, Honolulu's Aloha Stadium... (PCL), Latin American All-Stars Latin America Latin America is a region of the Americas where Romance languages – particularly Spanish and Portuguese, and variably French – are primarily spoken. Latin America has an area of approximately 21,069,500 km² , almost 3.9% of the Earth's surface or 14.1% of its land surface area...	1973
Triple-A World Series Triple-A World Series The Triple-A World Series is an infrequently held contest featuring the champions of each Triple-A level minor league of Major League Baseball, with the intent of crowning an overall champion of Triple-A Baseball....	American Association American Association (20th century) The American Association was a minor league baseball league at the Triple-A level of baseball in the United States from to and to . Together with the International League, it contested the Junior World Series which determined the championship team in minor league baseball, at least for the... , International League International League The International League is a minor league baseball league that operates in the eastern United States. Like the Pacific Coast League and the Mexican League, it plays at the Triple-A level, which is one step below Major League Baseball. It was so named because it had teams in both the United States... , Pacific Coast League Pacific Coast League The Pacific Coast League is a minor-league baseball league operating in the Western, Midwestern and Southeastern United States. Along with the International League and the Mexican League, it is one of three leagues playing at the Triple-A level, which is one step below Major League Baseball.The...	1983
Triple-A Classic	American Association American Association (20th century) The American Association was a minor league baseball league at the Triple-A level of baseball in the United States from to and to . Together with the International League, it contested the Junior World Series which determined the championship team in minor league baseball, at least for the... , International League International League The International League is a minor league baseball league that operates in the eastern United States. Like the Pacific Coast League and the Mexican League, it plays at the Triple-A level, which is one step below Major League Baseball. It was so named because it had teams in both the United States...	1988-1991
Triple-A World Series Triple-A World Series The Triple-A World Series is an infrequently held contest featuring the champions of each Triple-A level minor league of Major League Baseball, with the intent of crowning an overall champion of Triple-A Baseball....	International League International League The International League is a minor league baseball league that operates in the eastern United States. Like the Pacific Coast League and the Mexican League, it plays at the Triple-A level, which is one step below Major League Baseball. It was so named because it had teams in both the United States... , Pacific Coast League Pacific Coast League The Pacific Coast League is a minor-league baseball league operating in the Western, Midwestern and Southeastern United States. Along with the International League and the Mexican League, it is one of three leagues playing at the Triple-A level, which is one step below Major League Baseball.The...	1998-2000
Bricktown Showdown Bricktown Showdown The Triple-A Baseball National Championship Game, previously known as the Bricktown Showdown, is a single championship game held annually between the league champions of the International League and Pacific Coast League Triple-A leagues of minor league baseball to determine an overall champion of...	International League International League The International League is a minor league baseball league that operates in the eastern United States. Like the Pacific Coast League and the Mexican League, it plays at the Triple-A level, which is one step below Major League Baseball. It was so named because it had teams in both the United States... , Pacific Coast League Pacific Coast League The Pacific Coast League is a minor-league baseball league operating in the Western, Midwestern and Southeastern United States. Along with the International League and the Mexican League, it is one of three leagues playing at the Triple-A level, which is one step below Major League Baseball.The...	2006-present

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