An independent baseball league is a professional baseball league in the United States or Canada that is not overseen by Major League Baseball or its affiliated Minor League Baseball system (historically referred to as organized baseball).
Independent leagues have flourished in northeastern states, where dense populations can often support multiple franchises. Because they are not subject to the territorial limitations imposed on affiliated minor-league teams, independent clubs can relocate as close to affiliated teams (and one another) as they choose to. For example, the city of Lancaster, Pennsylvania, cannot have an affiliated team because of its proximity to the Harrisburg Senators and Reading Fightin Phils, leaving the Atlantic League to place a team—the Lancaster Stormers—to fill the void. Another example is the greater New York City metropolitan area, where there are many independent teams: the Long Island Ducks, Staten Island FerryHawks, New Jersey Jackals, New York Boulders, and Sussex County Miners.
The Atlantic League is considered as the top level of competition among the independent leagues, comparable to Double-A, and has had more marquee players than any other independent league, including Jose Canseco, Mat Latos, Steve Lombardozzi Jr., Francisco Rodríguez, Chien-Ming Wang, Roger Clemens, Rich Hill, Scott Kazmir, Juan González, John Rocker, Nick Senzel, and Dontrelle Willis. Two former Atlantic League players are in the National Baseball Hall of Fame and Museum, Tim Raines and Rickey Henderson. Gary Carter, another Hall of Famer, managed in the league. The Atlantic League has had many notable managers and coaches, including Wally Backman, Frank Viola, Tommy John, Sparky Lyle, and Bud Harrelson. The Northern League alumni include Leon "Bull" Durham, J. D. Drew, and Darryl Strawberry.
History
Independent leagues are those professional leagues in the United States and Canada not under the purview of organized Minor League Baseball and the Commissioner of Baseball. Independent baseball existed in the early 20th century and has become prominent again since 1993.
Leagues operated mostly autonomously before 1902, when the majority joined the NAPBL. From then until 1915, a total of eight new and existing leagues remained independent. Most joined the National Association after one season of independence. Notable exceptions were the California League, which was independent in 1902 and from 1907 to 1909; the United States Baseball League, which folded during its independent 1912 season; and the Colonial League, a National Association Member that went independent in 1915 and then folded. Another independent league, the Federal League, played at a level considered major league from 1914 to 1915.
Few independent leagues existed between 1915 and 1993. Major exceptions included the Carolina League and the Quebec-based Provincial League. The Carolina League, based in the North Carolina Piedmont region, gained a reputation as a notorious "outlaw league" during its existence from 1936 to 1938. The Provincial League fielded six teams across Quebec and was independent from 1948 to 1949. Similarly to early 20th-century independent leagues, it joined the National Association in 1950, playing for six more years.
Independent leagues saw new growth after 1992, after the new Professional Baseball Agreement in organized baseball instituted more stringent revenue and stadium requirements on members. The Northern League and Frontier League both started play in 1993, and the Northern League's success paved the way for other independent leagues like the Texas-Louisiana League and Northeast League. Over the next eight years, at least 16 independent leagues formed, of which six existed in 2002. As of the 2024 season, there were seven active leagues, with four of them acting as MLB Partner Leagues. In 2026, the Canadian Baseball League converted from being semi-professional to fully professional, the Women's Pro Baseball League was founded, and the Savannah Bananas officially established their own stand-alone league bringing the total number of independent leagues to ten.
Major League Baseball also co-operatively operates the MLB Draft League, which operates as an amateur collegiate summer baseball league in the first half of each season and a professional league outside of the structure of Minor League Baseball for the remainder.
Additionally, there two American teams that play in primarily Mexican leagues that are currently independent from Major League Baseball. The Tecolotes de los Dos Laredos of the Mexican Baseball League (which was formerly associated with Minor League Baseball) split their seasons playing home games across the border in Nuevo Laredo, Mexico and Laredo, Texas.</onlyinclude> The Tucson LMP baseball team plays in the winter Mexican Pacific League, but due to issues with work visas, has yet to play a game at their intended home stadium in Tucson, Arizona.
Current leagues +Overview of current independent baseball leaguesAffiliationLeagueFirst seasonTeamsGeographical area MLB ShowcaseLeagueMLB Draft League20216Northeast United States MLB PartnerLeaguesAmerican Association of Professional Baseball200612Midwest, Manitoba, TexasAtlantic League of Professional Baseball199810Mid-Atlantic, SoutheastFrontier League199318Northeast, Midwest, Ontario, QuebecPioneer Baseball League193912Northern Mountain States, California Independent Canadian Baseball League19199OntarioEmpire Professional Baseball League20164Upstate New YorkPecos League201116California, Southwest, Southern Mountain States, Great PlainsUnited Shore Professional Baseball League20164Utica, MichiganIndependent(women's baseball)Women's Pro Baseball League20264Springfield, IllinoisIndependent(Banana Ball)Banana Ball Championship League20266
Defunct leagues +Overview of former independent baseball leaguesLeagueFirst seasonLast seasonGeographical areaAll-American Association2001Southern United StatesArizona–Mexico League20032003Arizona, MexicoAtlantic Coast League1995Southeastern United StatesBig South League19961997Arkansas, Mississippi, TennesseeCanadian American Association of Professional Baseball20052019Northeast, Quebec, OntarioCanadian Baseball League20032003CanadaCarolina League19361938North Carolina's Piedmont regionCentral Baseball League19942005Southern United StatesContinental Baseball League20072010Southwestern United StatesEmpire State League1987New YorkFreedom Pro Baseball League20122013ArizonaGolden Baseball League20052010Hawaii, Western United States, Western Canada, MexicoGolden State League1995CaliforniaGreat Central League1994Upper MidwestHeartland League19961998Midwestern United States, Northeastern United States, Southeastern United StatesInter-American League19781979United States, Dominican Republic, Panama, Puerto Rico, VenezuelaMid-America League1995Midwestern United StatesMount Rainier Professional Baseball League2015Washington, Oregon, MontanaNorth Atlantic League19951996Northeastern United States, CanadaNorth American League20112012Western United States, Texas, Illinois, CanadaNorth Central League19941995Upper Midwest, CanadaNorth Country Baseball League2015New York, MaineNortheast League19952004Northeastern United States, CanadaNorthern League19932010Upper Midwest, Kansas, CanadaPacific Association20132019CaliforniaPrairie League19951997Upper Midwest, CanadaSouth Coast League2007Southeastern United StatesSoutheastern League20022003Southwest Baseball League19951997Southwestern United StatesThoroughbred Baseball League2017KentuckyUnited League Baseball20062014TexasWestern Baseball League19952002Pacific States
Outside of North America
In Japan, the Japan Independent Baseball League Organization, which consists of the Shikoku Island League Plus and Baseball Challenge League, operates independently from Nippon Professional Baseball (NPB). Japan also has a variety of independent semi-professional leagues consisting of industrial teams, where players are fulltime employees of the company that own and operate the team. South Korea also has series of small independent leagues.
A select number of Japanese independent teams also participate in the off-season Miyazaki Phoenix League alongside Japanese and Korean minor league teams. An all-star team of Japanese independent and industrial league players was invited to participate at the 2025 Caribbean Series under the moniker of the Japan Breeze.
+Overview of Japanese independent baseball leaguesLeagueFirst seasonTeamsGeographical areaShikoku Island League Plus20054ShikokuBaseball Challenge League20068Chūbu, Kantō, Tōhoku
See also List of professional baseball leagues List of baseball teams in Canada (including leagues)
References
External links IndependentBaseball.net