Professional baseball is organized

baseball Baseball is a bat-and-ball sport played between two teams of nine players each, taking turns batting and fielding. The game occurs over the course of several plays, with each play generally beginning when a player on the fielding tea ...

in which players are selected for their talents and are paid to play for a specific team or club system. It is played in leagues and associated

farm team In sports, a farm team, farm system, feeder team, feeder club, or nursery club is generally a team or club whose role is to provide experience and training for young players, with an agreement that any successful players can move on to a higher ...

s throughout the world.

Modern professional leagues

Americas

United States and Canada

Major League Baseball Major League Baseball (MLB) is a professional baseball organization and the oldest major professional sports league in the world. MLB is composed of 30 total teams, divided equally between the National League (NL) and the American League (AL), ...

in the

United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territorie ...

and

Canada Canada is a country in North America. Its ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, covering over , making it the world's second-largest country by tot ...

(founded in 1869) consists of the

National League The National League of Professional Baseball Clubs, known simply as the National League (NL), is the older of two leagues constituting Major League Baseball (MLB) in the United States and Canada, and the world's oldest extant professional team s ...

(founded in 1876) and the

American League The American League of Professional Baseball Clubs, known simply as the American League (AL), is one of two leagues that make up Major League Baseball (MLB) in the United States and Canada. It developed from the Western League, a minor league ...

(founded in 1901). Historically, teams in one league never played teams in the other until the

World Series The World Series is the annual championship series of Major League Baseball (MLB) in the United States and Canada, contested since 1903 between the champion teams of the American League (AL) and the National League (NL). The winner of the World ...

, in which the champions of the two leagues played against each other. This changed in 1997 with the advent of

interleague play Interleague play in Major League Baseball refers to regular-season baseball games played between an American League (AL) team and a National League (NL) team. Interleague play was first introduced during the 1997 Major League Baseball season. Pr ...

. As of 2022, the

Philadelphia Phillies The Philadelphia Phillies are an American professional baseball team based in Philadelphia. They compete in Major League Baseball (MLB) as a member of the National League (NL) National League East, East division. Since 2004, the team's home sta ...

, founded in 1883, are the oldest continuous same-name, same-city franchise in both Major League Baseball and all of American professional sports. In addition to the major leagues, many North American cities and towns feature minor league teams. An organization officially styled Minor League Baseball, formerly the National Association of Professional Baseball Leagues, oversees nearly all minor league baseball in the United States and Canada. The minor leagues are divided into classes AAA, AA, High A, Low A, Short-Season A, Advanced Rookie, and Rookie. These minor-league divisions are affiliated with major league teams, and serve to develop young players and rehabilitate injured major-leaguers. The

Mexican League The Mexican League (, ) is a professional baseball league based in Mexico and the oldest running professional league in the country. The league has 18 teams organized in two divisions, North and South. Teams play 114 games each season. Five te ...

is an independent league that is a member of Minor League Baseball and has no affiliations to any Major League Baseball teams. ''Organized Baseball'' is often applied as an umbrella term for all leagues — Major and minor — under the authority of the

Commissioner of Baseball The Commissioner of Baseball is the chief executive officer of Major League Baseball (MLB) and the associated Minor League Baseball (MiLB) – a constellation of leagues and clubs known as "organized baseball". Under the direction of the Commiss ...

. Operating outside the Minor League Baseball organization are many independent minor leagues such as the Atlantic League,

American Association American Association may refer to: Baseball * American Association (1882–1891), a major league active from 1882 to 1891 * American Association (1902–1997), a minor league active from 1902 to 1962 and 1969 to 1997 * American Association of Profe ...

Frontier League The Frontier League is a professional independent baseball league with teams in the Northeastern and Midwestern United States and Eastern Canada. Formed in 1993, it is the oldest currently running independent league in the United States. The le ...

, and the feeder league to these the

Empire Professional Baseball League The Empire Professional Baseball League (EPBL) is an independent baseball league that began play in 2016. The Empire League plays a 40-game regular season followed by a five-game post season. The four-team league consists of four teams from Upst ...

Caribbean countries

Dominican Professional Baseball League Dominican may refer to: * Someone or something from or related to the Dominican Republic ( , stress on the "mi"), on the island of Hispaniola in the Greater Antilles, in the Caribbean ** People of the Dominican Republic ** Demographics of the Dom ...

(1951–present) *

Puerto Rico Baseball League Puerto, a Spanish word meaning ''seaport'', may refer to: Places *El Puerto de Santa María, Andalusia, Spain *Puerto, a seaport town in Cagayan de Oro City, Philippines *Puerto Colombia, Colombia *Puerto Cumarebo, Venezuela *Puerto Galera, Orient ...

(1938–present) *

Cuban League The Cuban League was one of the earliest and longest lasting professional baseball leagues outside the United States, operating in Cuba from 1878 to 1961. The schedule usually operated during the winter months, so the league was sometimes known a ...

(1878–1961)

Mexico

Mexican Pacific League The Mexican Pacific League (), known as Liga ARCO Mexicana del Pacífico for sponsorship reasons or simply LMP for its acronym in Spanish, is a professional baseball winter league based in Northern Mexico. The ten-team regular season schedule run ...

(1945–present; winter league) *

(1925–present; summer league)

Central America

Panamanian Professional Baseball League The Panamanian Professional Baseball League ( es, Béisbol Profesional de Panamá, links=no), currently known as Probeis, is a professional baseball winter league consisting of three teams based in Panama. Since 2019, the league's winner takes p ...

(1946–1972, 2001–present) *

Nicaraguan Professional Baseball League Liga de Beisbol Profesional Nacional (LBPN) is the professional baseball league of Nicaragua. The league consists of five teams with a 30 game regular season schedule that runs from November to December. Followed by a four team round robin, with ...

(1957–1967, 2004–present)

South America

Venezuelan Professional Baseball League The Venezuelan Professional Baseball League or Liga Venezolana de Béisbol Profesional (LVBP) is the professional baseball league in Venezuela. The league's champion takes part in the Caribbean Series each year. History Early years Baseball exp ...

(1946–present) *

Colombian Professional Baseball League The Colombian Professional Baseball League ( es, Liga Profesional de Béisbol Colombiano, links=no or LPB), is a professional baseball league based in Colombia. It is a five-team winter league that plays during the Major League Baseball offseason ...

(1948–1958, 1979–1988, 1994–present)

Asia

Japan

Japan has had professional baseball since the 1930s.

Nippon Professional Baseball or NPB is the highest level of baseball in Japan. Locally, it is often called , meaning ''Professional Baseball''. Outside Japan, it is often just referred to as "Japanese baseball". The roots of the league can be traced back to the formation ...

consists of two leagues, the

Central League The or is one of 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 consist ...

and the

Pacific League The or is one of the two professional baseball leagues constituting Nippon Professional Baseball in Japan. The winner of the league championship competes against the winner in the Central League for the annual Japan Series. It currently consis ...

, each with six teams.

Korea

South Korea South Korea, officially the Republic of Korea (ROK), is a country in East Asia, constituting the southern part of the Korea, Korean Peninsula and sharing a Korean Demilitarized Zone, land border with North Korea. Its western border is formed ...

has had professional baseball since 1982. There are 10 teams in

KBO League The KBO League (), officially the Shinhan Bank SOL KBO League, is the highest level league of baseball in South Korea. The KBO League was founded with six franchises in 1982 and is the most popular sports league in South Korea. The Kia Tigers ar ...

Taiwan

Taiwan has had professional baseball since the 1990s. The

Chinese Professional Baseball League The Chinese Professional Baseball League (CPBL; ) is the top-tier professional baseball league in Taiwan. The league was established in 1989 and played the first season in 1990. CPBL eventually absorbed the competing Taiwan Major League in 20 ...

absorbed

Taiwan Major League The Taiwan Major League Professional Baseball (TML; ) was a professional baseball league in Taiwan that operated from 1996 to 2003. It was established by TV tycoon Chiu Fu-sheng after a row over the Chinese Professional Baseball League (CPBL) b ...

in 2003.

Other Asian leagues

Other Asian leagues include three now defunct leagues, the

China National Baseball League The China National Baseball League (, CNBL) is a professional baseball sports league, league founded in 2019. History The original Chinese Baseball League (CBL) was founded in 2002. The league suspended operations in 2012 due to financial tr ...

Israel Baseball League The Israel Baseball League (IBL; Hebrew: ליגת הבייסבול הישראלית, ''Ligat ha-Beisbol ha-Israelit'') was a six-team professional baseball league in Israel. The first game was played on June 24, 2007. League structure The six ...

, and

Baseball Philippines The Philippine Amateur Baseball Association (PABA) is the national governing body for amateur baseball in the Philippines. Presidents *Dominador Pangilinan (?–1986) *Hector Navasero (1986–2013) *Ely Baradas (2013; acting) *Marty Eizmendi (2 ...

Europe

Italian Baseball League The Italian Baseball League (IBL; Italian: ') is a professional baseball league that is governed by FIBS (Italian Baseball & Softball Federation), which has its headquarters in Rome. The IBL is a wood bat league in which both composite and alumi ...

Honkbal Hoofdklasse The Honkbal Hoofdklasse ( Dutch for ''Major League Baseball'') is the highest level of professional baseball in the Netherlands. It is an eight-team league that plays a 42-game schedule and is overseen by the Royal Netherlands Baseball and Softba ...

(Dutch league) *

Elitserien Elitserien (literally, "the Elite League") is the name of several Swedish nationwide sport leagues. In many sports, Elitserien is the highest league, with the second highest named Allsvenskan. Elitserien leagues at present: * Elitserien (badmint ...

(Sweden) * Baseball Bundesliga (Germany)

Australia

Australian Baseball League The Australian Baseball League (ABL) is a professional baseball league in Australia. The league is governed by the Australian Baseball Federation (ABF). It uses the same name as a now-defunct competition held during the 1990s, and though it sh ...

Greater Brisbane League The Greater Brisbane League or formerly the Greater Brisbane Baseball Board league (GB3) is the largest baseball league in the Australian state of Queensland and covers all teams from Brisbane North, South, West, Metro as well as three Gold Coas ...

* New South Wales Major League

Historic leagues

During the late 19th and early 20th centuries,

African-American African Americans (also referred to as Black Americans and Afro-Americans) are an Race and ethnicity in the United States, ethnic group consisting of Americans with partial or total ancestry from sub-Saharan Africa. The term "African American ...

players were barred from playing the major leagues, though several did manage to play by claiming to be

Cuba Cuba ( , ), officially the Republic of Cuba ( es, República de Cuba, links=no ), is an island country comprising the island of Cuba, as well as Isla de la Juventud and several minor archipelagos. Cuba is located where the northern Caribbea ...

ns or Indians. As a result, a number of parallel

Negro leagues The Negro leagues were United States professional baseball leagues comprising teams of African Americans and, to a lesser extent, Latin Americans. The term may be used broadly to include professional black teams outside the leagues and it may be ...

were formed. However, after

Jackie Robinson Jack Roosevelt Robinson (January 31, 1919 – October 24, 1972) was an American professional baseball player who became the first African American to play in Major League Baseball (MLB) in the modern era. Robinson broke the baseball color line ...

began playing with the major-league

Brooklyn Dodgers The Brooklyn Dodgers were a Major League Baseball team founded in 1884 as a member of the American Association (19th century), American Association before joining the National League in 1890. They remained in Brooklyn until 1957, after which the ...

in 1947, the Negro leagues gradually faded. The process of integration did not go entirely smoothly; there were some ugly incidents, including pitchers who would try to throw directly at an African-American player's head. Now, however, baseball is fully integrated, and there is little to no racial tension between teammates. Between 1943 and 1954, the

All-American Girls Professional Baseball League The All-American Girls Professional Baseball League (AAGPBL) was a professional women's baseball league founded by Philip K. Wrigley which existed from 1943 to 1954. The AAGPBL is the forerunner of women's professional league sports in the Uni ...

fielded teams in several

Midwest The Midwestern United States, also referred to as the Midwest or the American Midwest, is one of four Census Bureau Region, census regions of the United States Census Bureau (also known as "Region 2"). It occupies the northern central part of ...

ern towns.

References

{{DEFAULTSORT:Professional Baseball Baseball leagues Professional baseball